/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 BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 22:59:10,871 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 22:59:10,874 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 22:59:10,885 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 22:59:10,886 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 22:59:10,887 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 22:59:10,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 22:59:10,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 22:59:10,892 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 22:59:10,892 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 22:59:10,893 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 22:59:10,894 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 22:59:10,895 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 22:59:10,896 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 22:59:10,897 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 22:59:10,898 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 22:59:10,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 22:59:10,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 22:59:10,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 22:59:10,903 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 22:59:10,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 22:59:10,905 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 22:59:10,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 22:59:10,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 22:59:10,910 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 22:59:10,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 22:59:10,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 22:59:10,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 22:59:10,919 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 22:59:10,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 22:59:10,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 22:59:10,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 22:59:10,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 22:59:10,935 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 22:59:10,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 22:59:10,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 22:59:10,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 22:59:10,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 22:59:10,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 22:59:10,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 22:59:10,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 22:59:10,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 22:59:10,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 22:59:10,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 22:59:10,937 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 22:59:10,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 22:59:10,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 22:59:10,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 22:59:10,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 22:59:10,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 22:59:10,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 22:59:10,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 22:59:10,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 22:59:10,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 22:59:10,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 22:59:10,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:10,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 22:59:10,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 22:59:10,940 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 -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 22:59:11,216 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 22:59:11,229 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 22:59:11,232 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 22:59:11,233 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 22:59:11,234 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 22:59:11,234 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label34.c [2020-07-21 22:59:11,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4def209/69c06dabdf8845ce99b4d81a331febe6/FLAGd0d09abfb [2020-07-21 22:59:11,892 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 22:59:11,893 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label34.c [2020-07-21 22:59:11,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4def209/69c06dabdf8845ce99b4d81a331febe6/FLAGd0d09abfb [2020-07-21 22:59:12,186 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f4def209/69c06dabdf8845ce99b4d81a331febe6 [2020-07-21 22:59:12,194 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 22:59:12,197 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 22:59:12,198 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 22:59:12,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 22:59:12,202 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 22:59:12,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:59:12" (1/1) ... [2020-07-21 22:59:12,206 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b3607cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:59:12, skipping insertion in model container [2020-07-21 22:59:12,206 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 10:59:12" (1/1) ... [2020-07-21 22:59:12,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 22:59:12,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 22:59:12,769 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:59:12,773 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 22:59:12,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 22:59:12,932 INFO L208 MainTranslator]: Completed translation [2020-07-21 22:59:12,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:59:12 WrapperNode [2020-07-21 22:59:12,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 22:59:12,934 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 22:59:12,934 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 22:59:12,934 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 22:59:12,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:59:12" (1/1) ... [2020-07-21 22:59:12,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:59:12" (1/1) ... [2020-07-21 22:59:12,972 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:59:12" (1/1) ... [2020-07-21 22:59:12,972 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:59:12" (1/1) ... [2020-07-21 22:59:13,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:59:12" (1/1) ... [2020-07-21 22:59:13,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:59:12" (1/1) ... [2020-07-21 22:59:13,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:59:12" (1/1) ... [2020-07-21 22:59:13,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 22:59:13,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 22:59:13,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 22:59:13,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 22:59:13,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:59:12" (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 22:59:13,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 22:59:13,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 22:59:13,136 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 22:59:13,136 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 22:59:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 22:59:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 22:59:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 22:59:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 22:59:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 22:59:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 22:59:13,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 22:59:14,705 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 22:59:14,705 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 22:59:14,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:59:14 BoogieIcfgContainer [2020-07-21 22:59:14,711 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 22:59:14,712 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 22:59:14,713 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 22:59:14,716 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 22:59:14,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 10:59:12" (1/3) ... [2020-07-21 22:59:14,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ad1bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:59:14, skipping insertion in model container [2020-07-21 22:59:14,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 10:59:12" (2/3) ... [2020-07-21 22:59:14,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61ad1bca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 10:59:14, skipping insertion in model container [2020-07-21 22:59:14,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 10:59:14" (3/3) ... [2020-07-21 22:59:14,719 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label34.c [2020-07-21 22:59:14,729 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 22:59:14,738 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 22:59:14,752 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 22:59:14,778 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 22:59:14,778 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 22:59:14,778 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 22:59:14,778 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 22:59:14,779 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 22:59:14,779 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 22:59:14,779 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 22:59:14,779 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 22:59:14,803 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 22:59:14,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-07-21 22:59:14,814 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:59:14,815 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] [2020-07-21 22:59:14,815 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:59:14,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:59:14,822 INFO L82 PathProgramCache]: Analyzing trace with hash -864026194, now seen corresponding path program 1 times [2020-07-21 22:59:14,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:59:14,831 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887311045] [2020-07-21 22:59:14,831 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:14,953 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:59:14,954 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:59:14,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 22:59:14,965 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:59:15,038 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 22:59:15,038 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:59:15,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887311045] [2020-07-21 22:59:15,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:59:15,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 22:59:15,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1829122756] [2020-07-21 22:59:15,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 22:59:15,047 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:59:15,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 22:59:15,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 22:59:15,064 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 22:59:16,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:59:16,125 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 22:59:16,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 22:59:16,127 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2020-07-21 22:59:16,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:59:16,143 INFO L225 Difference]: With dead ends: 571 [2020-07-21 22:59:16,143 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 22:59:16,150 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 67 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 22:59:16,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 22:59:16,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 22:59:16,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 22:59:16,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 22:59:16,219 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 69 [2020-07-21 22:59:16,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:59:16,220 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 22:59:16,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 22:59:16,220 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 22:59:16,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-21 22:59:16,226 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:59:16,226 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 22:59:16,441 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:16,442 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:59:16,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:59:16,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1207192086, now seen corresponding path program 1 times [2020-07-21 22:59:16,443 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:59:16,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1226691222] [2020-07-21 22:59:16,444 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:16,537 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 22:59:16,537 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:59:16,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 22:59:16,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:59:16,604 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 59 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 22:59:16,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:59:16,714 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 22:59:16,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1226691222] [2020-07-21 22:59:16,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 22:59:16,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2020-07-21 22:59:16,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572354689] [2020-07-21 22:59:16,718 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 22:59:16,718 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:59:16,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 22:59:16,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:59:16,719 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 4 states. [2020-07-21 22:59:17,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:59:17,428 INFO L93 Difference]: Finished difference Result 586 states and 786 transitions. [2020-07-21 22:59:17,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 22:59:17,429 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 139 [2020-07-21 22:59:17,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:59:17,435 INFO L225 Difference]: With dead ends: 586 [2020-07-21 22:59:17,435 INFO L226 Difference]: Without dead ends: 584 [2020-07-21 22:59:17,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 277 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:59:17,437 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-07-21 22:59:17,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 584. [2020-07-21 22:59:17,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 584 states. [2020-07-21 22:59:17,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 584 states to 584 states and 784 transitions. [2020-07-21 22:59:17,497 INFO L78 Accepts]: Start accepts. Automaton has 584 states and 784 transitions. Word has length 139 [2020-07-21 22:59:17,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:59:17,498 INFO L479 AbstractCegarLoop]: Abstraction has 584 states and 784 transitions. [2020-07-21 22:59:17,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 22:59:17,498 INFO L276 IsEmpty]: Start isEmpty. Operand 584 states and 784 transitions. [2020-07-21 22:59:17,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-07-21 22:59:17,512 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:59:17,513 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 22:59:17,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:17,728 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:59:17,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:59:17,729 INFO L82 PathProgramCache]: Analyzing trace with hash -1954765038, now seen corresponding path program 1 times [2020-07-21 22:59:17,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:59:17,730 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [656416063] [2020-07-21 22:59:17,730 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:17,856 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:59:17,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:59:17,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 22:59:17,864 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:59:17,927 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:59:17,928 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:59:17,928 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [656416063] [2020-07-21 22:59:17,928 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:59:17,929 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 22:59:17,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178964618] [2020-07-21 22:59:17,930 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:59:17,930 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:59:17,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:59:17,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:59:17,931 INFO L87 Difference]: Start difference. First operand 584 states and 784 transitions. Second operand 5 states. [2020-07-21 22:59:18,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:59:18,921 INFO L93 Difference]: Finished difference Result 1472 states and 2014 transitions. [2020-07-21 22:59:18,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:59:18,921 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 191 [2020-07-21 22:59:18,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:59:18,933 INFO L225 Difference]: With dead ends: 1472 [2020-07-21 22:59:18,933 INFO L226 Difference]: Without dead ends: 894 [2020-07-21 22:59:18,937 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 187 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 22:59:18,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states. [2020-07-21 22:59:18,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 880. [2020-07-21 22:59:18,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 880 states. [2020-07-21 22:59:18,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 880 states to 880 states and 1114 transitions. [2020-07-21 22:59:18,993 INFO L78 Accepts]: Start accepts. Automaton has 880 states and 1114 transitions. Word has length 191 [2020-07-21 22:59:18,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:59:18,994 INFO L479 AbstractCegarLoop]: Abstraction has 880 states and 1114 transitions. [2020-07-21 22:59:18,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:59:18,994 INFO L276 IsEmpty]: Start isEmpty. Operand 880 states and 1114 transitions. [2020-07-21 22:59:18,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-21 22:59:18,998 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:59:18,999 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 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 22:59:19,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:19,212 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:59:19,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:59:19,213 INFO L82 PathProgramCache]: Analyzing trace with hash 975052414, now seen corresponding path program 1 times [2020-07-21 22:59:19,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:59:19,214 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1902235462] [2020-07-21 22:59:19,215 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:19,316 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:59:19,316 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:59:19,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:59:19,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:59:19,402 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 192 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:59:19,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:59:19,541 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 192 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 22:59:19,542 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1902235462] [2020-07-21 22:59:19,542 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:59:19,542 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:59:19,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178149943] [2020-07-21 22:59:19,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:59:19,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:59:19,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:59:19,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:59:19,545 INFO L87 Difference]: Start difference. First operand 880 states and 1114 transitions. Second operand 7 states. [2020-07-21 22:59:20,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:59:20,947 INFO L93 Difference]: Finished difference Result 2352 states and 3091 transitions. [2020-07-21 22:59:20,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 22:59:20,949 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-07-21 22:59:20,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:59:20,958 INFO L225 Difference]: With dead ends: 2352 [2020-07-21 22:59:20,958 INFO L226 Difference]: Without dead ends: 1478 [2020-07-21 22:59:20,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 448 GetRequests, 437 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 22:59:20,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2020-07-21 22:59:21,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1474. [2020-07-21 22:59:21,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1474 states. [2020-07-21 22:59:21,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1474 states to 1474 states and 1881 transitions. [2020-07-21 22:59:21,037 INFO L78 Accepts]: Start accepts. Automaton has 1474 states and 1881 transitions. Word has length 221 [2020-07-21 22:59:21,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:59:21,038 INFO L479 AbstractCegarLoop]: Abstraction has 1474 states and 1881 transitions. [2020-07-21 22:59:21,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:59:21,038 INFO L276 IsEmpty]: Start isEmpty. Operand 1474 states and 1881 transitions. [2020-07-21 22:59:21,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2020-07-21 22:59:21,047 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:59:21,047 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:21,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:21,262 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:59:21,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:59:21,263 INFO L82 PathProgramCache]: Analyzing trace with hash 2144724034, now seen corresponding path program 1 times [2020-07-21 22:59:21,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:59:21,264 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [256400022] [2020-07-21 22:59:21,264 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:21,357 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:59:21,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:59:21,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 22:59:21,363 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:59:21,433 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-07-21 22:59:21,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 22:59:21,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [256400022] [2020-07-21 22:59:21,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 22:59:21,434 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 22:59:21,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718480982] [2020-07-21 22:59:21,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 22:59:21,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:59:21,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 22:59:21,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 22:59:21,438 INFO L87 Difference]: Start difference. First operand 1474 states and 1881 transitions. Second operand 5 states. [2020-07-21 22:59:22,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:59:22,387 INFO L93 Difference]: Finished difference Result 3119 states and 3989 transitions. [2020-07-21 22:59:22,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:59:22,390 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 265 [2020-07-21 22:59:22,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:59:22,401 INFO L225 Difference]: With dead ends: 3119 [2020-07-21 22:59:22,401 INFO L226 Difference]: Without dead ends: 1651 [2020-07-21 22:59:22,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 261 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:59:22,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1651 states. [2020-07-21 22:59:22,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1651 to 1341. [2020-07-21 22:59:22,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1341 states. [2020-07-21 22:59:22,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1341 states to 1341 states and 1714 transitions. [2020-07-21 22:59:22,467 INFO L78 Accepts]: Start accepts. Automaton has 1341 states and 1714 transitions. Word has length 265 [2020-07-21 22:59:22,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:59:22,468 INFO L479 AbstractCegarLoop]: Abstraction has 1341 states and 1714 transitions. [2020-07-21 22:59:22,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 22:59:22,473 INFO L276 IsEmpty]: Start isEmpty. Operand 1341 states and 1714 transitions. [2020-07-21 22:59:22,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-07-21 22:59:22,483 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:59:22,484 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:59:22,697 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:22,698 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:59:22,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:59:22,699 INFO L82 PathProgramCache]: Analyzing trace with hash 1397062270, now seen corresponding path program 1 times [2020-07-21 22:59:22,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:59:22,699 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625105057] [2020-07-21 22:59:22,700 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 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 22:59:22,815 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:59:22,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:59:22,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:59:22,822 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:59:22,852 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:59:22,852 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:59:22,945 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 338 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-07-21 22:59:22,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:59:23,074 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:23,075 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:23,078 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 22:59:23,078 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:23,209 INFO L134 CoverageAnalysis]: Checked inductivity of 403 backedges. 258 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 22:59:23,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625105057] [2020-07-21 22:59:23,210 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:59:23,210 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 22:59:23,211 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137508588] [2020-07-21 22:59:23,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 22:59:23,212 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:59:23,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 22:59:23,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 22:59:23,213 INFO L87 Difference]: Start difference. First operand 1341 states and 1714 transitions. Second operand 6 states. [2020-07-21 22:59:24,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:59:24,265 INFO L93 Difference]: Finished difference Result 2716 states and 3587 transitions. [2020-07-21 22:59:24,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 22:59:24,266 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 335 [2020-07-21 22:59:24,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:59:24,274 INFO L225 Difference]: With dead ends: 2716 [2020-07-21 22:59:24,274 INFO L226 Difference]: Without dead ends: 1524 [2020-07-21 22:59:24,282 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 675 GetRequests, 666 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:59:24,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1524 states. [2020-07-21 22:59:24,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1524 to 1500. [2020-07-21 22:59:24,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1500 states. [2020-07-21 22:59:24,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1500 states to 1500 states and 1791 transitions. [2020-07-21 22:59:24,329 INFO L78 Accepts]: Start accepts. Automaton has 1500 states and 1791 transitions. Word has length 335 [2020-07-21 22:59:24,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:59:24,330 INFO L479 AbstractCegarLoop]: Abstraction has 1500 states and 1791 transitions. [2020-07-21 22:59:24,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 22:59:24,330 INFO L276 IsEmpty]: Start isEmpty. Operand 1500 states and 1791 transitions. [2020-07-21 22:59:24,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2020-07-21 22:59:24,337 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:59:24,338 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 22:59:24,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:24,551 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:59:24,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:59:24,552 INFO L82 PathProgramCache]: Analyzing trace with hash -734916411, now seen corresponding path program 1 times [2020-07-21 22:59:24,553 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:59:24,553 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457911350] [2020-07-21 22:59:24,553 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:24,661 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 22:59:24,661 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:59:24,662 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 22:59:24,667 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:59:24,765 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 354 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-07-21 22:59:24,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:59:24,972 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 265 proven. 77 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-21 22:59:24,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457911350] [2020-07-21 22:59:24,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 22:59:24,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 22:59:24,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021273844] [2020-07-21 22:59:24,979 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 22:59:24,979 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:59:24,979 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 22:59:24,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 22:59:24,980 INFO L87 Difference]: Start difference. First operand 1500 states and 1791 transitions. Second operand 7 states. [2020-07-21 22:59:26,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 22:59:26,566 INFO L93 Difference]: Finished difference Result 4156 states and 5003 transitions. [2020-07-21 22:59:26,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 22:59:26,568 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 344 [2020-07-21 22:59:26,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 22:59:26,575 INFO L225 Difference]: With dead ends: 4156 [2020-07-21 22:59:26,576 INFO L226 Difference]: Without dead ends: 2207 [2020-07-21 22:59:26,580 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 683 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 22:59:26,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2207 states. [2020-07-21 22:59:26,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2207 to 1345. [2020-07-21 22:59:26,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1345 states. [2020-07-21 22:59:26,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1345 states to 1345 states and 1533 transitions. [2020-07-21 22:59:26,622 INFO L78 Accepts]: Start accepts. Automaton has 1345 states and 1533 transitions. Word has length 344 [2020-07-21 22:59:26,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 22:59:26,622 INFO L479 AbstractCegarLoop]: Abstraction has 1345 states and 1533 transitions. [2020-07-21 22:59:26,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 22:59:26,622 INFO L276 IsEmpty]: Start isEmpty. Operand 1345 states and 1533 transitions. [2020-07-21 22:59:26,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-07-21 22:59:26,631 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 22:59:26,631 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 22:59:26,845 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:26,846 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 22:59:26,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 22:59:26,846 INFO L82 PathProgramCache]: Analyzing trace with hash 985155661, now seen corresponding path program 1 times [2020-07-21 22:59:26,846 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 22:59:26,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2055521215] [2020-07-21 22:59:26,847 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 22:59:26,977 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 22:59:26,977 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 22:59:26,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 22:59:26,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 22:59:27,001 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:59:27,002 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:59:27,004 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:59:27,005 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,008 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:59:27,009 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,010 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,012 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,014 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 22:59:27,016 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 22:59:27,017 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:59:27,018 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 22:59:27,019 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 22:59:27,021 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,023 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,024 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,025 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:59:27,026 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,028 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,029 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,031 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:59:27,033 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 22:59:27,034 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,035 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,036 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 22:59:27,038 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 22:59:41,727 WARN L193 SmtUtils]: Spent 14.62 s on a formula simplification. DAG size of input: 64 DAG size of output: 31 [2020-07-21 22:59:41,760 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 22:59:41,847 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 22:59:41,848 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:59:41,848 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:59:41,876 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 22:59:42,034 INFO L134 CoverageAnalysis]: Checked inductivity of 455 backedges. 390 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-07-21 22:59:42,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 22:59:42,145 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:42,146 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:42,146 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:42,147 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:42,169 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:42,170 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:42,279 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:42,281 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:42,282 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:42,282 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:42,283 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:42,284 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:42,284 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:42,286 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:42,287 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:42,288 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:42,289 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:42,289 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:42,291 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 22:59:42,291 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:42,293 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:42,294 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:42,294 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:42,295 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:42,297 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 22:59:42,298 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 22:59:42,299 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:42,299 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:42,300 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:42,301 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:42,302 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 22:59:42,303 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 22:59:42,304 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 22:59:42,455 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2055521215] [2020-07-21 22:59:42,456 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 22:59:42,456 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 22:59:42,459 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591044792] [2020-07-21 22:59:42,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 22:59:42,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 22:59:42,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 22:59:42,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 22:59:42,461 INFO L87 Difference]: Start difference. First operand 1345 states and 1533 transitions. Second operand 8 states. [2020-07-21 23:03:03,071 WARN L193 SmtUtils]: Spent 14.78 s on a formula simplification. DAG size of input: 44 DAG size of output: 43 [2020-07-21 23:03:41,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:03:41,959 INFO L93 Difference]: Finished difference Result 3874 states and 4644 transitions. [2020-07-21 23:03:41,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-21 23:03:41,969 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 380 [2020-07-21 23:03:41,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:03:41,981 INFO L225 Difference]: With dead ends: 3874 [2020-07-21 23:03:41,982 INFO L226 Difference]: Without dead ends: 2678 [2020-07-21 23:03:41,987 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 650 GetRequests, 629 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 30.2s TimeCoverageRelationStatistics Valid=136, Invalid=284, Unknown=0, NotChecked=0, Total=420 [2020-07-21 23:03:41,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2678 states. [2020-07-21 23:03:42,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2678 to 2664. [2020-07-21 23:03:42,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2664 states. [2020-07-21 23:03:42,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2664 states to 2664 states and 3121 transitions. [2020-07-21 23:03:42,090 INFO L78 Accepts]: Start accepts. Automaton has 2664 states and 3121 transitions. Word has length 380 [2020-07-21 23:03:42,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:03:42,091 INFO L479 AbstractCegarLoop]: Abstraction has 2664 states and 3121 transitions. [2020-07-21 23:03:42,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 23:03:42,091 INFO L276 IsEmpty]: Start isEmpty. Operand 2664 states and 3121 transitions. [2020-07-21 23:03:42,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 395 [2020-07-21 23:03:42,104 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:03:42,104 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 23:03:42,305 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:03:42,305 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:03:42,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:03:42,306 INFO L82 PathProgramCache]: Analyzing trace with hash 2048192937, now seen corresponding path program 1 times [2020-07-21 23:03:42,306 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:03:42,307 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1786175400] [2020-07-21 23:03:42,307 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:03:42,532 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:03:42,532 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:03:42,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 23:03:42,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:03:42,669 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-21 23:03:42,670 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 23:03:42,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1786175400] [2020-07-21 23:03:42,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 23:03:42,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 23:03:42,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554226682] [2020-07-21 23:03:42,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 23:03:42,672 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:03:42,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 23:03:42,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 23:03:42,672 INFO L87 Difference]: Start difference. First operand 2664 states and 3121 transitions. Second operand 3 states. [2020-07-21 23:03:44,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:03:44,114 INFO L93 Difference]: Finished difference Result 5322 states and 6231 transitions. [2020-07-21 23:03:44,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 23:03:44,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 394 [2020-07-21 23:03:44,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:03:44,125 INFO L225 Difference]: With dead ends: 5322 [2020-07-21 23:03:44,125 INFO L226 Difference]: Without dead ends: 2662 [2020-07-21 23:03:44,131 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 392 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 23:03:44,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2020-07-21 23:03:44,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 2519. [2020-07-21 23:03:44,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2519 states. [2020-07-21 23:03:44,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2519 states to 2519 states and 2915 transitions. [2020-07-21 23:03:44,185 INFO L78 Accepts]: Start accepts. Automaton has 2519 states and 2915 transitions. Word has length 394 [2020-07-21 23:03:44,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:03:44,185 INFO L479 AbstractCegarLoop]: Abstraction has 2519 states and 2915 transitions. [2020-07-21 23:03:44,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 23:03:44,186 INFO L276 IsEmpty]: Start isEmpty. Operand 2519 states and 2915 transitions. [2020-07-21 23:03:44,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2020-07-21 23:03:44,194 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 23:03:44,195 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 23:03:44,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:03:44,409 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 23:03:44,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 23:03:44,410 INFO L82 PathProgramCache]: Analyzing trace with hash -1827375362, now seen corresponding path program 1 times [2020-07-21 23:03:44,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 23:03:44,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [108920350] [2020-07-21 23:03:44,411 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:03:44,655 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 23:03:44,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 23:03:44,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 605 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-21 23:03:44,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 23:03:44,759 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:03:44,760 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:03:44,761 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:03:44,762 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:03:44,763 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 23:03:44,767 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:03:44,771 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 23:03:44,772 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 23:04:09,265 WARN L193 SmtUtils]: Spent 24.41 s on a formula simplification. DAG size of input: 69 DAG size of output: 34 [2020-07-21 23:04:09,343 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:04:11,590 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 23:04:11,590 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:04:11,591 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:04:11,668 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:04:11,669 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 23:04:11,838 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 191 proven. 197 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 23:04:11,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 23:04:12,034 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 23 [2020-07-21 23:04:12,092 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:04:12,093 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,094 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,094 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:04:12,177 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,178 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:04:12,543 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,545 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,545 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 23:04:12,546 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:04:12,546 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:04:12,547 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:04:12,548 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:04:12,549 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:04:12,549 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:04:12,550 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:04:12,551 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:04:12,552 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:04:12,553 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:04:12,553 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:04:12,554 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:04:12,555 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:04:12,556 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:04:12,557 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 23:04:12,557 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:04:12,558 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:04:12,559 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 23:04:12,560 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 7 conjuncts [2020-07-21 23:04:12,560 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:04:12,561 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:04:12,561 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 6 conjuncts [2020-07-21 23:04:12,640 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,640 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,641 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,643 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,644 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,645 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,645 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:12,646 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 23:04:13,024 INFO L134 CoverageAnalysis]: Checked inductivity of 459 backedges. 383 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 23:04:13,024 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [108920350] [2020-07-21 23:04:13,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 23:04:13,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-21 23:04:13,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818884318] [2020-07-21 23:04:13,026 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 23:04:13,026 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 23:04:13,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 23:04:13,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=101, Unknown=1, NotChecked=0, Total=132 [2020-07-21 23:04:13,027 INFO L87 Difference]: Start difference. First operand 2519 states and 2915 transitions. Second operand 12 states. [2020-07-21 23:04:18,791 WARN L193 SmtUtils]: Spent 4.43 s on a formula simplification. DAG size of input: 39 DAG size of output: 32 [2020-07-21 23:04:51,984 WARN L193 SmtUtils]: Spent 14.32 s on a formula simplification that was a NOOP. DAG size: 38 [2020-07-21 23:04:56,095 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 21 [2020-07-21 23:04:56,320 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 20 [2020-07-21 23:05:14,112 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2020-07-21 23:05:14,369 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 21 [2020-07-21 23:05:26,946 WARN L193 SmtUtils]: Spent 12.24 s on a formula simplification that was a NOOP. DAG size: 36 [2020-07-21 23:05:30,496 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 23:05:31,980 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 19 [2020-07-21 23:05:41,887 WARN L193 SmtUtils]: Spent 8.22 s on a formula simplification that was a NOOP. DAG size: 43 [2020-07-21 23:05:49,910 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 20 [2020-07-21 23:05:52,726 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 18 [2020-07-21 23:06:16,561 WARN L193 SmtUtils]: Spent 23.49 s on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2020-07-21 23:06:42,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 23:06:42,898 INFO L93 Difference]: Finished difference Result 5982 states and 7039 transitions. [2020-07-21 23:06:42,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-07-21 23:06:42,912 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 399 [2020-07-21 23:06:42,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 23:06:42,913 INFO L225 Difference]: With dead ends: 5982 [2020-07-21 23:06:42,913 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 23:06:42,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 857 GetRequests, 812 SyntacticMatches, 4 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 107.2s TimeCoverageRelationStatistics Valid=355, Invalid=1448, Unknown=3, NotChecked=0, Total=1806 [2020-07-21 23:06:42,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 23:06:42,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 23:06:42,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 23:06:42,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 23:06:42,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 399 [2020-07-21 23:06:42,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 23:06:42,928 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 23:06:42,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 23:06:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 23:06:42,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 23:06:43,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 23:06:43,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 23:06:43,945 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 210 [2020-07-21 23:06:44,110 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 210 [2020-07-21 23:06:44,479 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 25 [2020-07-21 23:07:19,703 WARN L193 SmtUtils]: Spent 35.21 s on a formula simplification. DAG size of input: 225 DAG size of output: 93 [2020-07-21 23:07:19,913 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 16 [2020-07-21 23:08:23,706 WARN L193 SmtUtils]: Spent 1.06 m on a formula simplification. DAG size of input: 221 DAG size of output: 73 [2020-07-21 23:09:44,446 WARN L193 SmtUtils]: Spent 1.35 m on a formula simplification. DAG size of input: 221 DAG size of output: 73 [2020-07-21 23:09:44,454 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:09:44,454 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (or (< 7 ~a19~0) (< |old(~a19~0)| 8)) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-21 23:09:44,454 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:09:44,454 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 23:09:44,455 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,455 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,455 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,455 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,455 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,455 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,456 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 23:09:44,456 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 23:09:44,456 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 23:09:44,456 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 23:09:44,456 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 23:09:44,456 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 23:09:44,456 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 23:09:44,456 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 23:09:44,457 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 23:09:44,457 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 23:09:44,457 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 23:09:44,457 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,457 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,457 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,457 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,457 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,457 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 23:09:44,458 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 23:09:44,459 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 193) no Hoare annotation was computed. [2020-07-21 23:09:44,459 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 23:09:44,459 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,459 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,459 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,459 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,459 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,459 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 23:09:44,460 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 23:09:44,460 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 23:09:44,460 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 23:09:44,460 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 23:09:44,460 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 23:09:44,460 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 23:09:44,460 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 23:09:44,460 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 23:09:44,461 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 23:09:44,461 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,461 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,461 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,461 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,461 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,461 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 23:09:44,462 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 23:09:44,462 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 23:09:44,462 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 23:09:44,462 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 23:09:44,462 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 23:09:44,462 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 23:09:44,462 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 23:09:44,463 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 23:09:44,463 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 23:09:44,463 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 23:09:44,463 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 23:09:44,463 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 23:09:44,463 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,463 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,464 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,464 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,464 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,464 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 23:09:44,464 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 23:09:44,464 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 23:09:44,464 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 23:09:44,465 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 23:09:44,465 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 23:09:44,465 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 23:09:44,465 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 23:09:44,465 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 23:09:44,465 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,465 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,465 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,466 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,466 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,466 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,466 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,466 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 23:09:44,466 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 23:09:44,466 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 23:09:44,466 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 23:09:44,467 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 23:09:44,467 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 23:09:44,467 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 23:09:44,467 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 23:09:44,467 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 23:09:44,467 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 23:09:44,467 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 23:09:44,468 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 23:09:44,468 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 23:09:44,468 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,468 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,468 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,468 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,469 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 23:09:44,469 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,469 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,469 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 23:09:44,469 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 23:09:44,469 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 23:09:44,469 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 23:09:44,469 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 23:09:44,470 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 23:09:44,470 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 23:09:44,470 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 23:09:44,470 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 23:09:44,470 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 23:09:44,470 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 23:09:44,470 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 23:09:44,470 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 23:09:44,470 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 23:09:44,471 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 23:09:44,472 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 23:09:44,472 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 23:09:44,472 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 23:09:44,472 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 23:09:44,472 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse16 (<= ~a10~0 |old(~a10~0)|)) (.cse1 (<= |old(~a10~0)| ~a10~0)) (.cse2 (<= ~a19~0 |old(~a19~0)|)) (.cse14 (< 7 ~a19~0)) (.cse4 (= ~a1~0 |old(~a1~0)|))) (let ((.cse11 (not (<= 4 |old(~a10~0)|))) (.cse5 (not (<= |old(~a19~0)| 8))) (.cse9 (and .cse16 .cse1 .cse2 .cse14 .cse4)) (.cse12 (and .cse16 .cse1 .cse2 .cse4)) (.cse10 (not (<= |old(~a10~0)| 2))) (.cse0 (and (not (< |old(~a10~0)| 3)) (not (< |old(~a1~0)| 219)))) (.cse3 (< ~a10~0 4)) (.cse8 (not (< 7 |old(~a19~0)|))) (.cse6 (not (< |old(~a10~0)| 4))) (.cse13 (not (<= |old(~a19~0)| 9))) (.cse7 (not (<= 2 |old(~a10~0)|)))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4) .cse5 .cse6 .cse7) (or .cse8 .cse9 .cse10) (or .cse11 .cse12 .cse5 .cse7) (or .cse11 .cse8 .cse13 .cse9) (or (not (<= 23 (div (+ |old(~a1~0)| (- 517989)) 5))) .cse8 .cse6 .cse13 .cse7 .cse9) (or .cse8 .cse5 .cse9) (or (and .cse1 .cse2 .cse14 .cse4 (<= ~a10~0 3)) .cse8 .cse6 .cse13 (forall ((v_~a1~0_429 Int)) (let ((.cse15 (mod v_~a1~0_429 25))) (or (= 0 (mod (+ .cse15 3) 5)) (not (< .cse15 42592)) (not (<= |old(~a1~0)| v_~a1~0_429)) (not (<= |old(~a1~0)| (+ (div (+ .cse15 (- 42592)) 5) 8518))) (not (<= 0 v_~a1~0_429))))) .cse7) (or .cse12 .cse10) (or (not (<= 23 |old(~a1~0)|)) .cse0 (and .cse1 .cse2 .cse14 .cse3 .cse4) .cse8 .cse6 .cse13 .cse7)))) [2020-07-21 23:09:44,472 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 23:09:44,472 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 23:09:44,473 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 23:09:44,473 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,473 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,473 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,473 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,473 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,473 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,473 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 23:09:44,473 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 23:09:44,474 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 23:09:44,474 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 23:09:44,474 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 23:09:44,474 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 23:09:44,474 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 23:09:44,474 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 23:09:44,474 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 23:09:44,474 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 23:09:44,474 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 23:09:44,474 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 23:09:44,474 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 23:09:44,475 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 23:09:44,476 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 23:09:44,476 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 23:09:44,476 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 23:09:44,476 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 23:09:44,476 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 23:09:44,476 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 23:09:44,476 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,476 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,476 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,477 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,477 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,477 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 23:09:44,477 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 23:09:44,477 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 23:09:44,477 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 23:09:44,477 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 23:09:44,477 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 23:09:44,477 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 23:09:44,478 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 23:09:44,478 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 23:09:44,478 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 23:09:44,478 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 23:09:44,478 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 23:09:44,478 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 23:09:44,478 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 23:09:44,478 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (< 7 ~a19~0) (= 23 ~a1~0)) [2020-07-21 23:09:44,479 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 23:09:44,479 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 23:09:44,479 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< 7 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= |old(~a19~0)| 9)) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (< 7 ~a19~0) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 23:09:44,479 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 23:09:44,479 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse5 (<= ~a19~0 8)) (.cse2 (or (< ~a10~0 3) (< ~a1~0 219))) (.cse0 (<= ~a19~0 9)) (.cse1 (< 8 |old(~a19~0)|)) (.cse4 (< ~a10~0 4)) (.cse3 (< 7 ~a19~0))) (or (and .cse0 (<= 4 ~a10~0) .cse1) (not (<= |old(~a10~0)| 0)) (not (< 7 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (and .cse0 .cse2 .cse3 (<= 23 ~a1~0) .cse1 .cse4) (and (<= 23 (div (+ ~a1~0 (- 517989)) 5)) .cse0 .cse3 .cse1 .cse4) (and .cse5 .cse3 .cse1) (and (<= ~a10~0 2) .cse1) (and .cse5 .cse2 .cse1) (not (<= |old(~a19~0)| 9)) (and (exists ((v_~a1~0_429 Int)) (let ((.cse6 (mod v_~a1~0_429 25))) (and (not (= 0 (mod (+ .cse6 3) 5))) (<= |old(~a1~0)| v_~a1~0_429) (<= 0 v_~a1~0_429) (<= ~a1~0 (+ (div (+ .cse6 (- 42592)) 5) 8518)) (< .cse6 42592)))) .cse0 .cse3 .cse1 .cse4) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) .cse3 (= ~a1~0 |old(~a1~0)|)))) [2020-07-21 23:09:44,480 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 23:09:44,480 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 23:09:44,480 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse5 (<= ~a19~0 8)) (.cse2 (or (< ~a10~0 3) (< ~a1~0 219))) (.cse0 (<= ~a19~0 9)) (.cse1 (< 8 |old(~a19~0)|)) (.cse4 (< ~a10~0 4)) (.cse3 (< 7 ~a19~0))) (or (and .cse0 (<= 4 ~a10~0) .cse1) (not (<= |old(~a10~0)| 0)) (not (< 7 |old(~a19~0)|)) (not (= 23 |old(~a1~0)|)) (and .cse0 .cse2 .cse3 (<= 23 ~a1~0) .cse1 .cse4) (and (<= 23 (div (+ ~a1~0 (- 517989)) 5)) .cse0 .cse3 .cse1 .cse4) (and .cse5 .cse3 .cse1) (and (<= ~a10~0 2) .cse1) (and .cse5 .cse2 .cse1) (not (<= |old(~a19~0)| 9)) (and (exists ((v_~a1~0_429 Int)) (let ((.cse6 (mod v_~a1~0_429 25))) (and (not (= 0 (mod (+ .cse6 3) 5))) (<= |old(~a1~0)| v_~a1~0_429) (<= 0 v_~a1~0_429) (<= ~a1~0 (+ (div (+ .cse6 (- 42592)) 5) 8518)) (< .cse6 42592)))) .cse0 .cse3 .cse1 .cse4) (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) .cse3 (= ~a1~0 |old(~a1~0)|)))) [2020-07-21 23:09:44,480 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 23:09:44,493 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,495 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,505 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,506 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:09:44 BoogieIcfgContainer [2020-07-21 23:09:44,510 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 23:09:44,512 INFO L168 Benchmark]: Toolchain (without parser) took 632315.79 ms. Allocated memory was 143.7 MB in the beginning and 535.8 MB in the end (delta: 392.2 MB). Free memory was 99.4 MB in the beginning and 220.5 MB in the end (delta: -121.2 MB). Peak memory consumption was 440.6 MB. Max. memory is 7.1 GB. [2020-07-21 23:09:44,512 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 23:09:44,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.14 ms. Allocated memory was 143.7 MB in the beginning and 202.9 MB in the end (delta: 59.2 MB). Free memory was 98.9 MB in the beginning and 166.7 MB in the end (delta: -67.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. [2020-07-21 23:09:44,514 INFO L168 Benchmark]: Boogie Preprocessor took 113.52 ms. Allocated memory is still 202.9 MB. Free memory was 166.7 MB in the beginning and 162.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-21 23:09:44,514 INFO L168 Benchmark]: RCFGBuilder took 1663.41 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 162.3 MB in the beginning and 176.9 MB in the end (delta: -14.7 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. [2020-07-21 23:09:44,515 INFO L168 Benchmark]: TraceAbstraction took 629797.58 ms. Allocated memory was 232.8 MB in the beginning and 535.8 MB in the end (delta: 303.0 MB). Free memory was 176.9 MB in the beginning and 220.5 MB in the end (delta: -43.6 MB). Peak memory consumption was 429.0 MB. Max. memory is 7.1 GB. [2020-07-21 23:09:44,518 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.14 ms. Allocated memory was 143.7 MB in the beginning and 202.9 MB in the end (delta: 59.2 MB). Free memory was 98.9 MB in the beginning and 166.7 MB in the end (delta: -67.7 MB). Peak memory consumption was 30.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.52 ms. Allocated memory is still 202.9 MB. Free memory was 166.7 MB in the beginning and 162.3 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1663.41 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 162.3 MB in the beginning and 176.9 MB in the end (delta: -14.7 MB). Peak memory consumption was 84.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 629797.58 ms. Allocated memory was 232.8 MB in the beginning and 535.8 MB in the end (delta: 303.0 MB). Free memory was 176.9 MB in the beginning and 220.5 MB in the end (delta: -43.6 MB). Peak memory consumption was 429.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 193]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant [2020-07-21 23:09:44,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] [2020-07-21 23:09:44,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_429,QUANTIFIED] Derived loop invariant: ((((((((((((a19 <= 9 && 4 <= a10) && 8 < \old(a19)) || !(\old(a10) <= 0)) || !(7 < \old(a19))) || !(23 == \old(a1))) || (((((a19 <= 9 && (a10 < 3 || a1 < 219)) && 7 < a19) && 23 <= a1) && 8 < \old(a19)) && a10 < 4)) || ((((23 <= (a1 + -517989) / 5 && a19 <= 9) && 7 < a19) && 8 < \old(a19)) && a10 < 4)) || ((a19 <= 8 && 7 < a19) && 8 < \old(a19))) || (a10 <= 2 && 8 < \old(a19))) || ((a19 <= 8 && (a10 < 3 || a1 < 219)) && 8 < \old(a19))) || !(\old(a19) <= 9)) || (((((\exists v_~a1~0_429 : int :: (((!(0 == (v_~a1~0_429 % 25 + 3) % 5) && \old(a1) <= v_~a1~0_429) && 0 <= v_~a1~0_429) && a1 <= (v_~a1~0_429 % 25 + -42592) / 5 + 8518) && v_~a1~0_429 % 25 < 42592) && a19 <= 9) && 7 < a19) && 8 < \old(a19)) && a10 < 4)) || ((((a10 <= \old(a10) && \old(a10) <= a10) && a19 <= \old(a19)) && 7 < a19) && a1 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 448.3s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 398.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 181.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 518 SDtfs, 4774 SDslu, 453 SDs, 0 SdLazy, 10421 SolverSat, 1995 SolverUnsat, 122 SolverUnknown, 0 SolverNotchecked, 287.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4518 GetRequests, 4407 SyntacticMatches, 10 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 137.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2664occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 10 MinimizatonAttempts, 1371 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 122 PreInvPairs, 196 NumberOfFragments, 711 HoareAnnotationTreeSize, 122 FomulaSimplifications, 7034 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 12464 FormulaSimplificationTreeSizeReductionInter, 180.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 45.3s InterpolantComputationTime, 2737 NumberOfCodeBlocks, 2072 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 4160 ConstructedInterpolants, 12 QuantifiedInterpolants, 4528120 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3640 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 15 InterpolantComputations, 5 PerfectInterpolantSequences, 3841/4263 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...