/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:29:09,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:29:09,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:29:09,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-20 17:29:09,885 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:29:09,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:29:09,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:29:09,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:29:09,888 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:29:09,889 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:29:09,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:29:09,893 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:29:09,894 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:29:09,895 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:29:09,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:29:09,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:29:09,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:29:09,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:29:09,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:29:09,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:29:09,908 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:29:09,922 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:29:09,922 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:29:09,923 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:29:09,924 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:29:09,924 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:29:09,924 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:29:09,924 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:29:09,924 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:29:09,925 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:29:09,925 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:29:09,925 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:29:09,925 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:29:09,925 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:29:09,926 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:29:09,926 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:29:09,926 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:29:09,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:29:09,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:29:09,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:29:09,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:29:09,927 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:29:09,927 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:29:09,927 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:29:09,928 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:29:09,928 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:29:09,928 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:29:09,928 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:09,928 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:29:09,928 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:29:09,929 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:29:10,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:29:10,232 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:29:10,236 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:29:10,237 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:29:10,237 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:29:10,238 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-20 17:29:10,288 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbcb88c14/32903fcc66734957bfecd21e8cb60898/FLAGffae0943b [2020-07-20 17:29:10,777 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:29:10,778 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label11.c [2020-07-20 17:29:10,792 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbcb88c14/32903fcc66734957bfecd21e8cb60898/FLAGffae0943b [2020-07-20 17:29:11,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbcb88c14/32903fcc66734957bfecd21e8cb60898 [2020-07-20 17:29:11,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:29:11,118 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:29:11,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:29:11,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:29:11,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:29:11,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:29:11" (1/1) ... [2020-07-20 17:29:11,127 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f1aed36 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:11, skipping insertion in model container [2020-07-20 17:29:11,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:29:11" (1/1) ... [2020-07-20 17:29:11,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:29:11,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:29:11,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:29:11,737 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:29:11,838 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:29:11,853 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:29:11,854 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:11 WrapperNode [2020-07-20 17:29:11,854 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:29:11,855 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:29:11,855 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:29:11,855 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:29:11,867 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:11" (1/1) ... [2020-07-20 17:29:11,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:11" (1/1) ... [2020-07-20 17:29:11,885 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:11" (1/1) ... [2020-07-20 17:29:11,886 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:11" (1/1) ... [2020-07-20 17:29:11,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:11" (1/1) ... [2020-07-20 17:29:11,949 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:11" (1/1) ... [2020-07-20 17:29:11,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:11" (1/1) ... [2020-07-20 17:29:11,961 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:29:11,962 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:29:11,962 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:29:11,962 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:29:11,963 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:11" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:29:12,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:29:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:29:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:29:12,053 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:29:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:29:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:29:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:29:12,054 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:29:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:29:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:29:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:29:13,253 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:29:13,254 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:29:13,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:29:13 BoogieIcfgContainer [2020-07-20 17:29:13,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:29:13,262 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:29:13,262 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:29:13,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:29:13,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:29:11" (1/3) ... [2020-07-20 17:29:13,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4789e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:29:13, skipping insertion in model container [2020-07-20 17:29:13,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:29:11" (2/3) ... [2020-07-20 17:29:13,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d4789e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:29:13, skipping insertion in model container [2020-07-20 17:29:13,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:29:13" (3/3) ... [2020-07-20 17:29:13,269 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label11.c [2020-07-20 17:29:13,280 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:29:13,288 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:29:13,303 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:29:13,329 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:29:13,329 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:29:13,329 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:29:13,329 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:29:13,330 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:29:13,330 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:29:13,330 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:29:13,330 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:29:13,357 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 17:29:13,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-20 17:29:13,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:13,368 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] [2020-07-20 17:29:13,368 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:13,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:13,375 INFO L82 PathProgramCache]: Analyzing trace with hash -1918215546, now seen corresponding path program 1 times [2020-07-20 17:29:13,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:13,385 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [742437761] [2020-07-20 17:29:13,385 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:13,515 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:13,516 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:13,519 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:29:13,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:13,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:13,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:13,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [742437761] [2020-07-20 17:29:13,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:13,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:13,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551742928] [2020-07-20 17:29:13,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:13,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:13,620 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:13,621 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:13,623 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 17:29:14,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:14,652 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 17:29:14,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:14,654 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2020-07-20 17:29:14,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:14,670 INFO L225 Difference]: With dead ends: 586 [2020-07-20 17:29:14,670 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 17:29:14,677 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:14,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 17:29:14,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 17:29:14,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 17:29:14,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-20 17:29:14,760 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 67 [2020-07-20 17:29:14,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:14,761 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-20 17:29:14,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:14,761 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-20 17:29:14,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-20 17:29:14,769 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:14,770 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 17:29:14,985 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:14,985 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:14,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:14,987 INFO L82 PathProgramCache]: Analyzing trace with hash -649832990, now seen corresponding path program 1 times [2020-07-20 17:29:14,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:14,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451795723] [2020-07-20 17:29:14,989 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:15,089 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:15,089 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:15,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 273 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:15,096 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:15,135 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:15,135 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:15,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451795723] [2020-07-20 17:29:15,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:15,136 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:15,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367934701] [2020-07-20 17:29:15,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:15,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:15,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:15,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:15,139 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-20 17:29:15,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:15,839 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-20 17:29:15,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:15,839 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 137 [2020-07-20 17:29:15,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:15,847 INFO L225 Difference]: With dead ends: 868 [2020-07-20 17:29:15,847 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 17:29:15,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:15,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 17:29:15,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 437. [2020-07-20 17:29:15,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 17:29:15,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-20 17:29:15,878 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 137 [2020-07-20 17:29:15,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:15,879 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-20 17:29:15,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:15,880 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-20 17:29:15,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-20 17:29:15,883 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:15,883 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:16,097 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:16,098 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:16,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:16,098 INFO L82 PathProgramCache]: Analyzing trace with hash 387828613, now seen corresponding path program 1 times [2020-07-20 17:29:16,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:16,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2031488218] [2020-07-20 17:29:16,099 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:16,216 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:16,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:16,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 278 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:16,236 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:16,305 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:16,306 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:16,306 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2031488218] [2020-07-20 17:29:16,306 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:16,307 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:16,309 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973284095] [2020-07-20 17:29:16,310 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:16,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:16,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:16,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:16,319 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-20 17:29:16,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:16,998 INFO L93 Difference]: Finished difference Result 868 states and 1308 transitions. [2020-07-20 17:29:16,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:16,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 144 [2020-07-20 17:29:17,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:17,007 INFO L225 Difference]: With dead ends: 868 [2020-07-20 17:29:17,008 INFO L226 Difference]: Without dead ends: 866 [2020-07-20 17:29:17,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:17,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-20 17:29:17,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 437. [2020-07-20 17:29:17,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 17:29:17,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 648 transitions. [2020-07-20 17:29:17,037 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 648 transitions. Word has length 144 [2020-07-20 17:29:17,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:17,037 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 648 transitions. [2020-07-20 17:29:17,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:17,038 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 648 transitions. [2020-07-20 17:29:17,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2020-07-20 17:29:17,041 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:17,041 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:29:17,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:17,256 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:17,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:17,257 INFO L82 PathProgramCache]: Analyzing trace with hash -319573275, now seen corresponding path program 1 times [2020-07-20 17:29:17,258 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:17,258 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576771355] [2020-07-20 17:29:17,259 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:17,362 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:17,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:17,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:17,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:17,442 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:29:17,443 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:17,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576771355] [2020-07-20 17:29:17,443 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:17,443 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:17,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937600944] [2020-07-20 17:29:17,445 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:17,445 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:17,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:17,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:17,447 INFO L87 Difference]: Start difference. First operand 437 states and 648 transitions. Second operand 3 states. [2020-07-20 17:29:18,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:18,151 INFO L93 Difference]: Finished difference Result 1154 states and 1745 transitions. [2020-07-20 17:29:18,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:18,152 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 192 [2020-07-20 17:29:18,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:18,157 INFO L225 Difference]: With dead ends: 1154 [2020-07-20 17:29:18,157 INFO L226 Difference]: Without dead ends: 723 [2020-07-20 17:29:18,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:18,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 723 states. [2020-07-20 17:29:18,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 723 to 580. [2020-07-20 17:29:18,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-20 17:29:18,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 811 transitions. [2020-07-20 17:29:18,179 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 811 transitions. Word has length 192 [2020-07-20 17:29:18,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:18,180 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 811 transitions. [2020-07-20 17:29:18,180 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:18,180 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 811 transitions. [2020-07-20 17:29:18,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 264 [2020-07-20 17:29:18,184 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:18,185 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, 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] [2020-07-20 17:29:18,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:18,395 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:18,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:18,396 INFO L82 PathProgramCache]: Analyzing trace with hash 562765338, now seen corresponding path program 1 times [2020-07-20 17:29:18,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:18,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [487583067] [2020-07-20 17:29:18,398 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:18,612 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:18,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:18,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 434 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 17:29:18,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:18,706 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 136 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-20 17:29:18,706 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:18,707 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [487583067] [2020-07-20 17:29:18,707 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:18,707 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:29:18,707 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494857643] [2020-07-20 17:29:18,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:29:18,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:18,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:29:18,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:29:18,709 INFO L87 Difference]: Start difference. First operand 580 states and 811 transitions. Second operand 5 states. [2020-07-20 17:29:19,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:19,659 INFO L93 Difference]: Finished difference Result 1315 states and 1852 transitions. [2020-07-20 17:29:19,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:29:19,663 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 263 [2020-07-20 17:29:19,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:19,669 INFO L225 Difference]: With dead ends: 1315 [2020-07-20 17:29:19,669 INFO L226 Difference]: Without dead ends: 741 [2020-07-20 17:29:19,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:29:19,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 741 states. [2020-07-20 17:29:19,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 741 to 739. [2020-07-20 17:29:19,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 739 states. [2020-07-20 17:29:19,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1009 transitions. [2020-07-20 17:29:19,697 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1009 transitions. Word has length 263 [2020-07-20 17:29:19,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:19,697 INFO L479 AbstractCegarLoop]: Abstraction has 739 states and 1009 transitions. [2020-07-20 17:29:19,698 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:29:19,698 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1009 transitions. [2020-07-20 17:29:19,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-07-20 17:29:19,702 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:19,703 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, 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] [2020-07-20 17:29:19,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:19,907 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:19,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:19,908 INFO L82 PathProgramCache]: Analyzing trace with hash -550746410, now seen corresponding path program 1 times [2020-07-20 17:29:19,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:19,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370520011] [2020-07-20 17:29:19,909 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:20,078 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:20,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:20,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:29:20,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-20 17:29:20,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:20,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370520011] [2020-07-20 17:29:20,189 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:20,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:29:20,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186774800] [2020-07-20 17:29:20,190 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:29:20,191 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:20,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:29:20,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:29:20,193 INFO L87 Difference]: Start difference. First operand 739 states and 1009 transitions. Second operand 5 states. [2020-07-20 17:29:21,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:21,070 INFO L93 Difference]: Finished difference Result 1649 states and 2326 transitions. [2020-07-20 17:29:21,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:29:21,070 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 281 [2020-07-20 17:29:21,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:21,078 INFO L225 Difference]: With dead ends: 1649 [2020-07-20 17:29:21,078 INFO L226 Difference]: Without dead ends: 916 [2020-07-20 17:29:21,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 277 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:29:21,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 916 states. [2020-07-20 17:29:21,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 916 to 890. [2020-07-20 17:29:21,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 890 states. [2020-07-20 17:29:21,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 890 states to 890 states and 1140 transitions. [2020-07-20 17:29:21,132 INFO L78 Accepts]: Start accepts. Automaton has 890 states and 1140 transitions. Word has length 281 [2020-07-20 17:29:21,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:21,132 INFO L479 AbstractCegarLoop]: Abstraction has 890 states and 1140 transitions. [2020-07-20 17:29:21,132 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:29:21,133 INFO L276 IsEmpty]: Start isEmpty. Operand 890 states and 1140 transitions. [2020-07-20 17:29:21,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2020-07-20 17:29:21,140 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:21,140 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, 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] [2020-07-20 17:29:21,352 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:21,353 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:21,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:21,354 INFO L82 PathProgramCache]: Analyzing trace with hash -182681854, now seen corresponding path program 1 times [2020-07-20 17:29:21,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:21,354 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [844188493] [2020-07-20 17:29:21,355 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:21,524 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:21,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:21,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 480 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:29:21,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:21,675 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2020-07-20 17:29:21,675 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:21,676 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [844188493] [2020-07-20 17:29:21,676 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:21,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:29:21,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020340121] [2020-07-20 17:29:21,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:29:21,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:21,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:29:21,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:29:21,678 INFO L87 Difference]: Start difference. First operand 890 states and 1140 transitions. Second operand 5 states. [2020-07-20 17:29:22,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:22,596 INFO L93 Difference]: Finished difference Result 1951 states and 2583 transitions. [2020-07-20 17:29:22,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:29:22,597 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 307 [2020-07-20 17:29:22,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:22,605 INFO L225 Difference]: With dead ends: 1951 [2020-07-20 17:29:22,605 INFO L226 Difference]: Without dead ends: 1210 [2020-07-20 17:29:22,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:29:22,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2020-07-20 17:29:22,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 1194. [2020-07-20 17:29:22,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-07-20 17:29:22,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1488 transitions. [2020-07-20 17:29:22,690 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1488 transitions. Word has length 307 [2020-07-20 17:29:22,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:22,690 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1488 transitions. [2020-07-20 17:29:22,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:29:22,690 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1488 transitions. [2020-07-20 17:29:22,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 334 [2020-07-20 17:29:22,698 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:29:22,698 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, 3, 3, 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] [2020-07-20 17:29:22,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:22,913 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:29:22,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:29:22,913 INFO L82 PathProgramCache]: Analyzing trace with hash 745892726, now seen corresponding path program 1 times [2020-07-20 17:29:22,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:29:22,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1817410134] [2020-07-20 17:29:22,914 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:23,107 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:29:23,107 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:29:23,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:29:23,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:29:23,138 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 17:29:23,139 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:29:23,140 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:29:23,147 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:29:23,149 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:23,153 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 17:29:23,155 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 17:29:23,682 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2020-07-20 17:29:23,682 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:29:23,683 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1817410134] [2020-07-20 17:29:23,683 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:29:23,683 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:29:23,683 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780417557] [2020-07-20 17:29:23,684 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:29:23,684 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:29:23,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:29:23,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:23,685 INFO L87 Difference]: Start difference. First operand 1194 states and 1488 transitions. Second operand 3 states. [2020-07-20 17:29:24,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:29:24,882 INFO L93 Difference]: Finished difference Result 2072 states and 2663 transitions. [2020-07-20 17:29:24,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:29:24,882 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 333 [2020-07-20 17:29:24,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:29:24,884 INFO L225 Difference]: With dead ends: 2072 [2020-07-20 17:29:24,884 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:29:24,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:29:24,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:29:24,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:29:24,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:29:24,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:29:24,891 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 333 [2020-07-20 17:29:24,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:29:24,891 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:29:24,892 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:29:24,892 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:29:24,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:29:25,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:29:25,100 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:29:25,848 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 56 [2020-07-20 17:29:25,962 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-07-20 17:29:26,062 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:29:26,062 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-20 17:29:26,062 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:29:26,062 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 17:29:26,063 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,063 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,063 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,063 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,063 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,063 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,063 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 17:29:26,063 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 17:29:26,064 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 17:29:26,064 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 17:29:26,064 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 17:29:26,064 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 17:29:26,064 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 17:29:26,064 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 17:29:26,064 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 17:29:26,064 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 17:29:26,065 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 17:29:26,065 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,065 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,065 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,065 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,065 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,065 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 17:29:26,065 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 17:29:26,066 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 17:29:26,066 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 17:29:26,066 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 17:29:26,066 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 17:29:26,066 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 17:29:26,066 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 17:29:26,066 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 17:29:26,066 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 17:29:26,067 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 17:29:26,067 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 17:29:26,067 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 17:29:26,067 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-07-20 17:29:26,067 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 17:29:26,067 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,067 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,068 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,068 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,068 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,068 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 17:29:26,068 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 17:29:26,068 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 17:29:26,068 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 17:29:26,068 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 17:29:26,069 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 17:29:26,069 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 17:29:26,069 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 17:29:26,069 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 17:29:26,069 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 17:29:26,069 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,069 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,070 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,070 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,070 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,070 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 17:29:26,070 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 17:29:26,070 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 17:29:26,070 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 17:29:26,070 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 17:29:26,071 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 17:29:26,071 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 17:29:26,071 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 17:29:26,071 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 17:29:26,071 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 17:29:26,071 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 17:29:26,071 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 17:29:26,071 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 17:29:26,072 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,072 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,072 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,072 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,072 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,072 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 17:29:26,072 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 17:29:26,072 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 17:29:26,073 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 17:29:26,073 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 17:29:26,073 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 17:29:26,073 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 17:29:26,073 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 17:29:26,073 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 17:29:26,073 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,073 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,074 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,074 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,074 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,074 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,074 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,074 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 17:29:26,074 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 17:29:26,074 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 17:29:26,074 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 17:29:26,075 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 17:29:26,075 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 17:29:26,075 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 17:29:26,075 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 17:29:26,075 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 17:29:26,075 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 17:29:26,075 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 17:29:26,075 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 17:29:26,076 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 17:29:26,076 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,076 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,076 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,076 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,076 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 17:29:26,076 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,077 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,077 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 17:29:26,077 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 17:29:26,077 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 17:29:26,077 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 17:29:26,077 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 17:29:26,077 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 17:29:26,077 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 17:29:26,078 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 17:29:26,078 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 17:29:26,078 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 17:29:26,078 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 17:29:26,078 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 17:29:26,078 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 17:29:26,078 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,078 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,079 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,079 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,079 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,079 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,079 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 17:29:26,079 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 17:29:26,079 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 17:29:26,079 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 17:29:26,079 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 17:29:26,080 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 17:29:26,080 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 17:29:26,080 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 17:29:26,080 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 17:29:26,080 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 17:29:26,080 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 17:29:26,080 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse4 (<= ~a10~0 |old(~a10~0)|)) (.cse5 (<= ~a19~0 |old(~a19~0)|)) (.cse6 (= ~a1~0 |old(~a1~0)|))) (let ((.cse2 (not (<= |old(~a19~0)| 9))) (.cse3 (and .cse4 .cse5 .cse6))) (and (or (forall ((v_~a1~0_347 Int)) (let ((.cse1 (mod v_~a1~0_347 25))) (let ((.cse0 (mod (+ (* .cse1 5) 10) 25))) (or (not (< v_~a1~0_347 0)) (not (<= .cse0 (+ |old(~a1~0)| 12))) (not (< (* 5 .cse1) 65)) (= 0 .cse1) (= 0 .cse0))))) .cse2 .cse3) (or (and .cse4 (or (<= 9 ~a19~0) (<= 23 ~a1~0)) .cse5 .cse6) (not (<= 9 |old(~a19~0)|)) .cse2) (or (not (<= 4 |old(~a10~0)|)) (and .cse4 .cse5 (<= 4 ~a10~0) .cse6) .cse2) (or .cse3 (not (<= |old(~a10~0)| 2)))))) [2020-07-20 17:29:26,081 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 17:29:26,081 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 17:29:26,081 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 17:29:26,081 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,081 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,081 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,081 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,081 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,082 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,082 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 17:29:26,082 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 17:29:26,082 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 17:29:26,082 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 17:29:26,082 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 17:29:26,082 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 17:29:26,082 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 17:29:26,082 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 17:29:26,083 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 17:29:26,083 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 17:29:26,083 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 17:29:26,083 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 17:29:26,083 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 17:29:26,083 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,083 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,083 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,084 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,084 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,084 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,084 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 17:29:26,084 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 17:29:26,084 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 17:29:26,084 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 17:29:26,084 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 17:29:26,085 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 17:29:26,085 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 17:29:26,085 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 17:29:26,085 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 17:29:26,085 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 17:29:26,085 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 17:29:26,085 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 17:29:26,085 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,086 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,086 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,086 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,086 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,086 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 17:29:26,086 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 17:29:26,086 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 17:29:26,086 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 17:29:26,087 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 17:29:26,087 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 17:29:26,087 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 17:29:26,087 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 17:29:26,087 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 17:29:26,087 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 17:29:26,087 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 17:29:26,088 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 17:29:26,088 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 17:29:26,088 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:29:26,088 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 23 ~a1~0)) [2020-07-20 17:29:26,088 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:29:26,088 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:29:26,088 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9))) [2020-07-20 17:29:26,089 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 17:29:26,089 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (and .cse0 (<= 9 ~a19~0)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (and .cse0 (exists ((v_~a1~0_347 Int)) (let ((.cse2 (mod v_~a1~0_347 25))) (let ((.cse1 (mod (+ (* .cse2 5) 10) 25))) (and (<= .cse1 (+ ~a1~0 12)) (< (* 5 .cse2) 65) (not (= 0 .cse2)) (not (= 0 .cse1)) (< v_~a1~0_347 0)))))) (and .cse0 (<= 4 ~a10~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)))) [2020-07-20 17:29:26,089 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 17:29:26,089 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 17:29:26,089 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (and .cse0 (<= 9 ~a19~0)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (and .cse0 (exists ((v_~a1~0_347 Int)) (let ((.cse2 (mod v_~a1~0_347 25))) (let ((.cse1 (mod (+ (* .cse2 5) 10) 25))) (and (<= .cse1 (+ ~a1~0 12)) (< (* 5 .cse2) 65) (not (= 0 .cse2)) (not (= 0 .cse1)) (< v_~a1~0_347 0)))))) (and .cse0 (<= 4 ~a10~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (not (<= |old(~a19~0)| 9)))) [2020-07-20 17:29:26,089 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 17:29:26,100 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,101 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,101 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,101 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,102 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,109 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,109 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,109 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,110 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,110 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:29:26 BoogieIcfgContainer [2020-07-20 17:29:26,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:29:26,114 INFO L168 Benchmark]: Toolchain (without parser) took 14996.67 ms. Allocated memory was 137.9 MB in the beginning and 391.1 MB in the end (delta: 253.2 MB). Free memory was 101.3 MB in the beginning and 88.3 MB in the end (delta: 13.0 MB). Peak memory consumption was 266.2 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:26,115 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 17:29:26,116 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.93 ms. Allocated memory was 137.9 MB in the beginning and 206.0 MB in the end (delta: 68.2 MB). Free memory was 100.9 MB in the beginning and 171.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:26,117 INFO L168 Benchmark]: Boogie Preprocessor took 106.69 ms. Allocated memory is still 206.0 MB. Free memory was 171.9 MB in the beginning and 167.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:26,118 INFO L168 Benchmark]: RCFGBuilder took 1298.85 ms. Allocated memory was 206.0 MB in the beginning and 238.0 MB in the end (delta: 32.0 MB). Free memory was 167.5 MB in the beginning and 181.9 MB in the end (delta: -14.4 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:26,118 INFO L168 Benchmark]: TraceAbstraction took 12850.63 ms. Allocated memory was 238.0 MB in the beginning and 391.1 MB in the end (delta: 153.1 MB). Free memory was 181.9 MB in the beginning and 88.3 MB in the end (delta: 93.6 MB). Peak memory consumption was 246.7 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:26,122 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.93 ms. Allocated memory was 137.9 MB in the beginning and 206.0 MB in the end (delta: 68.2 MB). Free memory was 100.9 MB in the beginning and 171.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.69 ms. Allocated memory is still 206.0 MB. Free memory was 171.9 MB in the beginning and 167.5 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1298.85 ms. Allocated memory was 206.0 MB in the beginning and 238.0 MB in the end (delta: 32.0 MB). Free memory was 167.5 MB in the beginning and 181.9 MB in the end (delta: -14.4 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12850.63 ms. Allocated memory was 238.0 MB in the beginning and 391.1 MB in the end (delta: 153.1 MB). Free memory was 181.9 MB in the beginning and 88.3 MB in the end (delta: 93.6 MB). Peak memory consumption was 246.7 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_347,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 187]: 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 [2020-07-20 17:29:26,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] [2020-07-20 17:29:26,132 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_347,QUANTIFIED] Derived loop invariant: (((((((a19 <= 9 && 9 <= a19) || !(23 == \old(a1))) || !(\old(a10) <= 0)) || (a19 <= 9 && (\exists v_~a1~0_347 : int :: ((((v_~a1~0_347 % 25 * 5 + 10) % 25 <= a1 + 12 && 5 * (v_~a1~0_347 % 25) < 65) && !(0 == v_~a1~0_347 % 25)) && !(0 == (v_~a1~0_347 % 25 * 5 + 10) % 25)) && v_~a1~0_347 < 0))) || (a19 <= 9 && 4 <= a10)) || !(9 <= \old(a19))) || a10 <= 2) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.7s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 7.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 418 SDtfs, 1411 SDslu, 149 SDs, 0 SdLazy, 3826 SolverSat, 783 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1724 GetRequests, 1702 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1194occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 759 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 40 PreInvPairs, 68 NumberOfFragments, 339 HoareAnnotationTreeSize, 40 FomulaSimplifications, 2349 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1547 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1724 NumberOfCodeBlocks, 1724 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 1716 ConstructedInterpolants, 63 QuantifiedInterpolants, 1552658 SizeOfPredicates, 14 NumberOfNonLiveVariables, 2959 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 1228/1228 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...