java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem18_label26.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 22:17:23,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 22:17:23,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 22:17:23,865 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-09 22:17:23,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 22:17:23,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 22:17:23,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 22:17:23,915 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-09 22:17:23,930 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 22:17:23,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 22:17:23,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 22:17:23,931 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 22:17:23,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 22:17:23,932 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 22:17:23,932 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 22:17:23,932 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 22:17:23,933 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 22:17:23,933 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 22:17:23,933 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 22:17:23,934 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 22:17:23,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 22:17:23,934 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 22:17:23,934 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 22:17:23,934 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 22:17:23,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 22:17:23,935 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 22:17:23,935 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 22:17:23,935 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 22:17:23,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 22:17:23,936 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 22:17:23,936 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 22:17:23,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 22:17:23,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 22:17:23,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 22:17:23,937 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 22:17:23,937 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 22:17:23,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 22:17:23,938 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 22:17:23,965 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 22:17:23,978 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 22:17:23,981 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 22:17:23,983 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 22:17:23,983 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 22:17:23,984 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem18_label26.c [2019-09-09 22:17:24,044 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71c9d5778/c3a820b92a6540f18e56cb0207be8125/FLAG705e06b68 [2019-09-09 22:17:24,723 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 22:17:24,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem18_label26.c [2019-09-09 22:17:24,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71c9d5778/c3a820b92a6540f18e56cb0207be8125/FLAG705e06b68 [2019-09-09 22:17:24,859 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71c9d5778/c3a820b92a6540f18e56cb0207be8125 [2019-09-09 22:17:24,867 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 22:17:24,869 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 22:17:24,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 22:17:24,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 22:17:24,873 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 22:17:24,874 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 10:17:24" (1/1) ... [2019-09-09 22:17:24,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335c662c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 10:17:24, skipping insertion in model container [2019-09-09 22:17:24,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 10:17:24" (1/1) ... [2019-09-09 22:17:24,884 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 22:17:25,023 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 22:17:26,438 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 22:17:26,449 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 22:17:26,954 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 22:17:26,982 INFO L192 MainTranslator]: Completed translation [2019-09-09 22:17:26,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 10:17:26 WrapperNode [2019-09-09 22:17:26,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 22:17:26,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 22:17:26,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 22:17:26,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 22:17:26,999 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 10:17:26" (1/1) ... [2019-09-09 22:17:27,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 10:17:26" (1/1) ... [2019-09-09 22:17:27,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 10:17:26" (1/1) ... [2019-09-09 22:17:27,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 10:17:26" (1/1) ... [2019-09-09 22:17:27,248 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 10:17:26" (1/1) ... [2019-09-09 22:17:27,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 10:17:26" (1/1) ... [2019-09-09 22:17:27,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 10:17:26" (1/1) ... [2019-09-09 22:17:27,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 22:17:27,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 22:17:27,351 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 22:17:27,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 22:17:27,352 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 10:17:26" (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 [2019-09-09 22:17:27,423 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 22:17:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 22:17:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2019-09-09 22:17:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2019-09-09 22:17:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2019-09-09 22:17:27,424 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 22:17:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2019-09-09 22:17:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2019-09-09 22:17:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2019-09-09 22:17:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 22:17:27,425 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 22:17:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2019-09-09 22:17:27,426 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 22:17:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 22:17:27,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 22:17:31,122 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 22:17:31,122 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-09 22:17:31,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 10:17:31 BoogieIcfgContainer [2019-09-09 22:17:31,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 22:17:31,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 22:17:31,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 22:17:31,128 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 22:17:31,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 10:17:24" (1/3) ... [2019-09-09 22:17:31,129 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6c9c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 10:17:31, skipping insertion in model container [2019-09-09 22:17:31,129 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 10:17:26" (2/3) ... [2019-09-09 22:17:31,130 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d6c9c38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 10:17:31, skipping insertion in model container [2019-09-09 22:17:31,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 10:17:31" (3/3) ... [2019-09-09 22:17:31,137 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem18_label26.c [2019-09-09 22:17:31,148 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 22:17:31,161 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 22:17:31,180 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 22:17:31,210 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 22:17:31,211 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 22:17:31,211 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 22:17:31,211 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 22:17:31,211 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 22:17:31,211 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 22:17:31,211 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 22:17:31,212 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 22:17:31,255 INFO L276 IsEmpty]: Start isEmpty. Operand 774 states. [2019-09-09 22:17:31,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-09 22:17:31,268 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 22:17:31,270 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 22:17:31,272 INFO L418 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 22:17:31,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 22:17:31,278 INFO L82 PathProgramCache]: Analyzing trace with hash 835114033, now seen corresponding path program 1 times [2019-09-09 22:17:31,280 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 22:17:31,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 22:17:31,330 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 22:17:31,330 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 22:17:31,330 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 22:17:31,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 22:17:31,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 22:17:31,659 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 22:17:31,660 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 22:17:31,660 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 22:17:31,666 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 22:17:31,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 22:17:31,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 22:17:31,684 INFO L87 Difference]: Start difference. First operand 774 states. Second operand 3 states. [2019-09-09 22:17:36,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 22:17:36,328 INFO L93 Difference]: Finished difference Result 1480 states and 2747 transitions. [2019-09-09 22:17:36,329 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 22:17:36,330 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-09 22:17:36,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 22:17:36,360 INFO L225 Difference]: With dead ends: 1480 [2019-09-09 22:17:36,361 INFO L226 Difference]: Without dead ends: 1412 [2019-09-09 22:17:36,363 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 22:17:36,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2019-09-09 22:17:36,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1412. [2019-09-09 22:17:36,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1412 states. [2019-09-09 22:17:36,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 2630 transitions. [2019-09-09 22:17:36,513 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 2630 transitions. Word has length 68 [2019-09-09 22:17:36,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 22:17:36,515 INFO L475 AbstractCegarLoop]: Abstraction has 1412 states and 2630 transitions. [2019-09-09 22:17:36,515 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 22:17:36,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 2630 transitions. [2019-09-09 22:17:36,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2019-09-09 22:17:36,529 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 22:17:36,530 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 22:17:36,530 INFO L418 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 22:17:36,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 22:17:36,532 INFO L82 PathProgramCache]: Analyzing trace with hash 506598757, now seen corresponding path program 1 times [2019-09-09 22:17:36,532 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 22:17:36,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 22:17:36,534 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 22:17:36,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 22:17:36,534 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 22:17:36,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 22:17:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 22:17:36,706 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 22:17:36,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-09 22:17:36,707 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 22:17:36,708 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-09 22:17:36,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-09 22:17:36,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-09 22:17:36,709 INFO L87 Difference]: Start difference. First operand 1412 states and 2630 transitions. Second operand 6 states. [2019-09-09 22:17:42,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 22:17:42,686 INFO L93 Difference]: Finished difference Result 2888 states and 4803 transitions. [2019-09-09 22:17:42,687 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-09 22:17:42,687 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 141 [2019-09-09 22:17:42,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 22:17:42,705 INFO L225 Difference]: With dead ends: 2888 [2019-09-09 22:17:42,706 INFO L226 Difference]: Without dead ends: 2888 [2019-09-09 22:17:42,707 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-09 22:17:42,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2888 states. [2019-09-09 22:17:42,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2888 to 2864. [2019-09-09 22:17:42,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2864 states. [2019-09-09 22:17:42,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2864 states to 2864 states and 4749 transitions. [2019-09-09 22:17:42,835 INFO L78 Accepts]: Start accepts. Automaton has 2864 states and 4749 transitions. Word has length 141 [2019-09-09 22:17:42,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 22:17:42,837 INFO L475 AbstractCegarLoop]: Abstraction has 2864 states and 4749 transitions. [2019-09-09 22:17:42,837 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-09 22:17:42,838 INFO L276 IsEmpty]: Start isEmpty. Operand 2864 states and 4749 transitions. [2019-09-09 22:17:42,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2019-09-09 22:17:42,843 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 22:17:42,843 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 22:17:42,844 INFO L418 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 22:17:42,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 22:17:42,845 INFO L82 PathProgramCache]: Analyzing trace with hash 288076576, now seen corresponding path program 1 times [2019-09-09 22:17:42,845 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 22:17:42,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 22:17:42,847 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 22:17:42,848 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 22:17:42,848 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 22:17:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 22:17:43,021 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 22:17:43,021 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 22:17:43,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-09 22:17:43,022 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 22:17:43,024 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-09 22:17:43,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-09 22:17:43,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-09 22:17:43,025 INFO L87 Difference]: Start difference. First operand 2864 states and 4749 transitions. Second operand 5 states. [2019-09-09 22:17:48,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 22:17:48,669 INFO L93 Difference]: Finished difference Result 5896 states and 8628 transitions. [2019-09-09 22:17:48,676 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-09 22:17:48,677 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2019-09-09 22:17:48,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 22:17:48,708 INFO L225 Difference]: With dead ends: 5896 [2019-09-09 22:17:48,709 INFO L226 Difference]: Without dead ends: 5896 [2019-09-09 22:17:48,710 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-09 22:17:48,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2019-09-09 22:17:48,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5815. [2019-09-09 22:17:48,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5815 states. [2019-09-09 22:17:48,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5815 states to 5815 states and 8477 transitions. [2019-09-09 22:17:48,910 INFO L78 Accepts]: Start accepts. Automaton has 5815 states and 8477 transitions. Word has length 144 [2019-09-09 22:17:48,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 22:17:48,912 INFO L475 AbstractCegarLoop]: Abstraction has 5815 states and 8477 transitions. [2019-09-09 22:17:48,912 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-09 22:17:48,912 INFO L276 IsEmpty]: Start isEmpty. Operand 5815 states and 8477 transitions. [2019-09-09 22:17:48,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2019-09-09 22:17:48,916 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 22:17:48,916 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 22:17:48,916 INFO L418 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 22:17:48,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 22:17:48,917 INFO L82 PathProgramCache]: Analyzing trace with hash 647429316, now seen corresponding path program 1 times [2019-09-09 22:17:48,917 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 22:17:48,919 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 22:17:48,920 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 22:17:48,920 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 22:17:48,920 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 22:17:48,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 22:17:49,117 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 22:17:49,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 22:17:49,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-09 22:17:49,118 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 22:17:49,119 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-09 22:17:49,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-09 22:17:49,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 22:17:49,119 INFO L87 Difference]: Start difference. First operand 5815 states and 8477 transitions. Second operand 4 states. [2019-09-09 22:17:55,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 22:17:55,494 INFO L93 Difference]: Finished difference Result 15104 states and 21148 transitions. [2019-09-09 22:17:55,495 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-09 22:17:55,495 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 174 [2019-09-09 22:17:55,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 22:17:55,555 INFO L225 Difference]: With dead ends: 15104 [2019-09-09 22:17:55,555 INFO L226 Difference]: Without dead ends: 15104 [2019-09-09 22:17:55,556 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 22:17:55,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15104 states. [2019-09-09 22:17:55,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15104 to 15099. [2019-09-09 22:17:55,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15099 states. [2019-09-09 22:17:55,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15099 states to 15099 states and 21133 transitions. [2019-09-09 22:17:55,850 INFO L78 Accepts]: Start accepts. Automaton has 15099 states and 21133 transitions. Word has length 174 [2019-09-09 22:17:55,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 22:17:55,852 INFO L475 AbstractCegarLoop]: Abstraction has 15099 states and 21133 transitions. [2019-09-09 22:17:55,852 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-09 22:17:55,852 INFO L276 IsEmpty]: Start isEmpty. Operand 15099 states and 21133 transitions. [2019-09-09 22:17:55,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2019-09-09 22:17:55,869 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 22:17:55,869 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 22:17:55,870 INFO L418 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 22:17:55,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 22:17:55,870 INFO L82 PathProgramCache]: Analyzing trace with hash -138076367, now seen corresponding path program 1 times [2019-09-09 22:17:55,870 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 22:17:55,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 22:17:55,871 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 22:17:55,871 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 22:17:55,872 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 22:17:55,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 22:17:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 183 proven. 191 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-09-09 22:17:56,185 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 22:17:56,185 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-09 22:17:56,186 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 400 with the following transitions: [2019-09-09 22:17:56,188 INFO L207 CegarAbsIntRunner]: [0], [1], [1624], [1631], [1639], [1647], [1655], [1663], [1671], [1679], [1687], [1695], [1703], [1711], [1719], [1727], [1735], [1743], [1751], [1759], [1767], [1775], [1783], [1791], [1799], [1807], [1815], [1823], [1831], [1839], [1847], [1855], [1863], [1871], [1879], [1887], [1895], [1903], [1911], [1919], [1927], [1935], [1943], [1951], [1959], [1967], [1975], [1983], [1991], [1999], [2007], [2015], [2023], [2031], [2039], [2047], [2055], [2063], [2071], [2075], [2077], [2080], [2088], [2096], [2104], [2112], [2117], [2121], [2125], [2129], [2133], [2137], [2141], [2145], [2149], [2153], [2157], [2161], [2165], [2169], [2173], [2177], [2181], [2185], [2189], [2193], [2196], [2197], [2201], [2205], [2209], [2213], [2217], [2221], [2225], [2229], [2233], [2237], [2241], [2245], [2249], [2253], [2257], [2261], [2265], [2269], [2273], [2277], [2280], [2281], [2285], [2289], [2293], [2297], [2301], [2305], [2309], [2313], [2317], [2321], [2325], [2329], [2333], [2337], [2341], [2345], [2349], [2353], [2357], [2361], [2365], [2368], [2996], [3000], [3009], [3013], [3015], [3024], [3025], [3026], [3028], [3029] [2019-09-09 22:17:56,258 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 22:17:56,258 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 22:18:04,627 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 22:18:04,629 INFO L272 AbstractInterpreter]: Visited 138 different actions 138 times. Never merged. Never widened. Performed 315 root evaluator evaluations with a maximum evaluation depth of 13. Performed 315 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Never found a fixpoint. Largest state had 24 variables. [2019-09-09 22:18:04,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 22:18:04,633 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 22:18:14,990 INFO L227 lantSequenceWeakener]: Weakened 375 states. On average, predicates are now at 77.95% of their original sizes. [2019-09-09 22:18:14,990 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-09 22:18:15,080 INFO L420 sIntCurrentIteration]: We unified 398 AI predicates to 398 [2019-09-09 22:18:15,081 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-09 22:18:15,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-09 22:18:15,086 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2019-09-09 22:18:15,086 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 22:18:15,086 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-09 22:18:15,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-09 22:18:15,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-09-09 22:18:15,087 INFO L87 Difference]: Start difference. First operand 15099 states and 21133 transitions. Second operand 10 states. [2019-09-09 22:19:51,578 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation.