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/float-benchs/zonotope_loose.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:40:04,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:40:04,422 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:40:04,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:40:04,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:40:04,435 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:40:04,436 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:40:04,438 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:40:04,440 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:40:04,441 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:40:04,442 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:40:04,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:40:04,443 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:40:04,444 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:40:04,445 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:40:04,446 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:40:04,447 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:40:04,448 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:40:04,450 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:40:04,452 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:40:04,454 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:40:04,455 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:40:04,456 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:40:04,457 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:40:04,459 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 01:40:04,462 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:40:04,463 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:40:04,464 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:40:04,464 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:40:04,465 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:40:04,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:40:04,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:40:04,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:40:04,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:40:04,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:40:04,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:40:04,469 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 [2019-09-10 01:40:04,483 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:40:04,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:40:04,484 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:40:04,484 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:40:04,485 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:40:04,485 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:40:04,485 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:40:04,485 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:40:04,486 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:40:04,486 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:40:04,487 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:40:04,487 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:40:04,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:40:04,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:40:04,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:40:04,488 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:40:04,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:40:04,488 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:40:04,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:40:04,488 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:40:04,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:40:04,489 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:40:04,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:40:04,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:40:04,489 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:40:04,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:40:04,490 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:40:04,490 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:40:04,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:40:04,490 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:40:04,527 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:40:04,539 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:40:04,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:40:04,544 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:40:04,544 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:40:04,545 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2019-09-10 01:40:04,607 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c3876543/f4648510af044018a35982a9394ee9a8/FLAG1b9fbd7cc [2019-09-10 01:40:05,073 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:40:05,073 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_loose.c.v+cfa-reducer.c [2019-09-10 01:40:05,082 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c3876543/f4648510af044018a35982a9394ee9a8/FLAG1b9fbd7cc [2019-09-10 01:40:05,491 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7c3876543/f4648510af044018a35982a9394ee9a8 [2019-09-10 01:40:05,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:40:05,501 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:40:05,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:40:05,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:40:05,508 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:40:05,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:40:05" (1/1) ... [2019-09-10 01:40:05,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@216075fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:05, skipping insertion in model container [2019-09-10 01:40:05,512 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:40:05" (1/1) ... [2019-09-10 01:40:05,520 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:40:05,543 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:40:05,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:40:05,747 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:40:05,764 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:40:05,870 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:40:05,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:05 WrapperNode [2019-09-10 01:40:05,871 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:40:05,872 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:40:05,872 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:40:05,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:40:05,883 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:05" (1/1) ... [2019-09-10 01:40:05,883 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:05" (1/1) ... [2019-09-10 01:40:05,888 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:05" (1/1) ... [2019-09-10 01:40:05,889 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:05" (1/1) ... [2019-09-10 01:40:05,894 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:05" (1/1) ... [2019-09-10 01:40:05,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:05" (1/1) ... [2019-09-10 01:40:05,898 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:05" (1/1) ... [2019-09-10 01:40:05,899 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:40:05,900 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:40:05,900 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:40:05,900 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:40:05,901 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:05" (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 [2019-09-10 01:40:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:40:05,953 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:40:05,954 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:40:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:40:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-10 01:40:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:40:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 01:40:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:40:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:40:05,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:40:06,145 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:40:06,145 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 01:40:06,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:40:06 BoogieIcfgContainer [2019-09-10 01:40:06,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:40:06,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:40:06,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:40:06,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:40:06,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:40:05" (1/3) ... [2019-09-10 01:40:06,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b9f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:40:06, skipping insertion in model container [2019-09-10 01:40:06,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:05" (2/3) ... [2019-09-10 01:40:06,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23b9f42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:40:06, skipping insertion in model container [2019-09-10 01:40:06,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:40:06" (3/3) ... [2019-09-10 01:40:06,155 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c.v+cfa-reducer.c [2019-09-10 01:40:06,165 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:40:06,180 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:40:06,217 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:40:06,270 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:40:06,270 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:40:06,271 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:40:06,271 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:40:06,271 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:40:06,271 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:40:06,272 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:40:06,272 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:40:06,291 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2019-09-10 01:40:06,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-10 01:40:06,302 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:40:06,303 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:40:06,306 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:40:06,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:40:06,313 INFO L82 PathProgramCache]: Analyzing trace with hash 857130946, now seen corresponding path program 1 times [2019-09-10 01:40:06,316 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:40:06,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:06,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:06,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:06,365 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:40:06,401 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:40:06,401 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:40:06,401 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:40:06,418 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:06,418 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:40:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:06,437 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 01:40:06,439 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 01:40:06,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:40:06,440 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 01:40:06,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:06,454 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:40:06,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:06,481 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-10 01:40:06,486 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:40:06,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:40:06,547 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:40:06,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:40:06,588 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:40:06,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-09-10 01:40:06,589 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:40:06,593 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:40:06,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:40:06,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:40:06,611 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2019-09-10 01:40:06,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:40:06,661 INFO L93 Difference]: Finished difference Result 26 states and 31 transitions. [2019-09-10 01:40:06,665 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:40:06,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-09-10 01:40:06,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:40:06,677 INFO L225 Difference]: With dead ends: 26 [2019-09-10 01:40:06,677 INFO L226 Difference]: Without dead ends: 18 [2019-09-10 01:40:06,679 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:40:06,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-10 01:40:06,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-10 01:40:06,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-10 01:40:06,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-09-10 01:40:06,717 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 16 [2019-09-10 01:40:06,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:40:06,718 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-09-10 01:40:06,718 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:40:06,718 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-09-10 01:40:06,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-10 01:40:06,719 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:40:06,719 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:40:06,720 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:40:06,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:40:06,720 INFO L82 PathProgramCache]: Analyzing trace with hash 872234983, now seen corresponding path program 1 times [2019-09-10 01:40:06,721 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:40:06,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:06,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:06,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:06,722 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:40:06,729 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:40:06,729 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:40:06,730 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:40:06,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:06,747 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:40:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:06,769 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 01:40:06,770 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 01:40:06,770 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:40:06,770 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:40:06,784 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:06,785 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 01:40:06,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:06,804 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-10 01:40:06,806 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:40:06,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:40:06,833 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:40:06,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:40:06,857 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:40:06,857 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-09-10 01:40:06,857 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:40:06,858 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:40:06,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:40:06,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:40:06,859 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 4 states. [2019-09-10 01:40:06,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:40:06,890 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-09-10 01:40:06,891 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:40:06,891 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2019-09-10 01:40:06,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:40:06,892 INFO L225 Difference]: With dead ends: 18 [2019-09-10 01:40:06,892 INFO L226 Difference]: Without dead ends: 18 [2019-09-10 01:40:06,893 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-10 01:40:06,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-10 01:40:06,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-10 01:40:06,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-10 01:40:06,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-09-10 01:40:06,897 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2019-09-10 01:40:06,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:40:06,898 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-09-10 01:40:06,898 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:40:06,898 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-09-10 01:40:06,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-10 01:40:06,899 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:40:06,899 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:40:06,899 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:40:06,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:40:06,900 INFO L82 PathProgramCache]: Analyzing trace with hash 809832475, now seen corresponding path program 1 times [2019-09-10 01:40:06,900 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:40:06,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:06,901 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:06,901 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:06,902 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:40:06,907 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:40:06,907 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:40:06,907 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:40:06,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:06,932 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:40:06,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:06,944 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 01:40:06,944 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 01:40:06,944 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:40:06,944 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:40:06,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:06,961 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 01:40:06,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:06,977 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-10 01:40:06,979 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:40:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:40:07,001 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:40:07,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:40:07,031 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:40:07,031 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2019-09-10 01:40:07,031 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:40:07,032 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:40:07,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:40:07,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-10 01:40:07,033 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 4 states. [2019-09-10 01:40:07,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:40:07,063 INFO L93 Difference]: Finished difference Result 21 states and 20 transitions. [2019-09-10 01:40:07,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:40:07,064 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2019-09-10 01:40:07,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:40:07,065 INFO L225 Difference]: With dead ends: 21 [2019-09-10 01:40:07,065 INFO L226 Difference]: Without dead ends: 18 [2019-09-10 01:40:07,066 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-10 01:40:07,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-10 01:40:07,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-10 01:40:07,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-10 01:40:07,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 17 transitions. [2019-09-10 01:40:07,070 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 17 transitions. Word has length 17 [2019-09-10 01:40:07,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:40:07,070 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 17 transitions. [2019-09-10 01:40:07,070 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:40:07,071 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 17 transitions. [2019-09-10 01:40:07,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-10 01:40:07,071 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:40:07,072 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:40:07,072 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:40:07,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:40:07,072 INFO L82 PathProgramCache]: Analyzing trace with hash -2055202780, now seen corresponding path program 1 times [2019-09-10 01:40:07,073 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:40:07,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:07,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:07,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:07,074 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:40:07,080 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:40:07,080 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:40:07,080 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-09-10 01:40:07,107 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:07,107 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:40:07,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:07,119 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 01:40:07,120 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 01:40:07,120 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:40:07,120 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-10 01:40:07,146 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:07,146 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:40:07,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:07,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 46 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-10 01:40:07,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:40:07,221 WARN L838 $PredicateComparison]: unable to prove that (exists ((main_~main__x~0 Real) (v_main_~main__y~0_15 Real)) (let ((.cse0 (* main_~main__x~0 main_~main__x~0))) (and (<= c_main_~main__y~0 (+ .cse0 2.0)) (<= main_~main__x~0 10.0) (< v_main_~main__y~0_15 (to_real 0)) (>= v_main_~main__y~0_15 (+ .cse0 (- main_~main__x~0)))))) is different from false [2019-09-10 01:40:07,225 WARN L860 $PredicateComparison]: unable to prove that (exists ((main_~main__x~0 Real) (v_main_~main__y~0_15 Real)) (let ((.cse0 (* main_~main__x~0 main_~main__x~0))) (and (<= c_main_~main__y~0 (+ .cse0 2.0)) (<= main_~main__x~0 10.0) (< v_main_~main__y~0_15 (to_real 0)) (>= v_main_~main__y~0_15 (+ .cse0 (- main_~main__x~0)))))) is different from true [2019-09-10 01:40:07,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:40:07,251 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:40:07,272 WARN L860 $PredicateComparison]: unable to prove that (or (forall ((v_main_~main__y~0_16 Real)) (or (not (<= v_main_~main__y~0_16 (+ (* c_main_~main__x~0 c_main_~main__x~0) 2.0))) (<= v_main_~main__y~0_16 105.0))) (<= (to_real 0) c_main_~main__y~0)) is different from true [2019-09-10 01:40:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:40:07,297 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:40:07,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 4] imperfect sequences [] total 7 [2019-09-10 01:40:07,297 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:40:07,298 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-10 01:40:07,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-10 01:40:07,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=13, Unknown=3, NotChecked=14, Total=42 [2019-09-10 01:40:07,299 INFO L87 Difference]: Start difference. First operand 18 states and 17 transitions. Second operand 5 states. [2019-09-10 01:40:07,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:40:07,311 INFO L93 Difference]: Finished difference Result 13 states and 12 transitions. [2019-09-10 01:40:07,311 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-10 01:40:07,312 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-09-10 01:40:07,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:40:07,312 INFO L225 Difference]: With dead ends: 13 [2019-09-10 01:40:07,312 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:40:07,313 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=13, Unknown=3, NotChecked=14, Total=42 [2019-09-10 01:40:07,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:40:07,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:40:07,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:40:07,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:40:07,325 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-09-10 01:40:07,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:40:07,325 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:40:07,325 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-10 01:40:07,326 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:40:07,326 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:40:07,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:40:07 BoogieIcfgContainer [2019-09-10 01:40:07,333 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:40:07,336 INFO L168 Benchmark]: Toolchain (without parser) took 1833.79 ms. Allocated memory was 135.3 MB in the beginning and 231.2 MB in the end (delta: 95.9 MB). Free memory was 91.6 MB in the beginning and 201.2 MB in the end (delta: -109.7 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:07,337 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 135.3 MB. Free memory was 109.9 MB in the beginning and 109.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:40:07,338 INFO L168 Benchmark]: CACSL2BoogieTranslator took 369.27 ms. Allocated memory was 135.3 MB in the beginning and 202.4 MB in the end (delta: 67.1 MB). Free memory was 91.4 MB in the beginning and 180.0 MB in the end (delta: -88.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:07,339 INFO L168 Benchmark]: Boogie Preprocessor took 27.54 ms. Allocated memory is still 202.4 MB. Free memory was 180.0 MB in the beginning and 178.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:07,339 INFO L168 Benchmark]: RCFGBuilder took 247.32 ms. Allocated memory is still 202.4 MB. Free memory was 178.3 MB in the beginning and 166.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:07,340 INFO L168 Benchmark]: TraceAbstraction took 1185.09 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 166.2 MB in the beginning and 201.2 MB in the end (delta: -35.1 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:07,344 INFO L335 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 135.3 MB. Free memory was 109.9 MB in the beginning and 109.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 369.27 ms. Allocated memory was 135.3 MB in the beginning and 202.4 MB in the end (delta: 67.1 MB). Free memory was 91.4 MB in the beginning and 180.0 MB in the end (delta: -88.7 MB). Peak memory consumption was 25.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.54 ms. Allocated memory is still 202.4 MB. Free memory was 180.0 MB in the beginning and 178.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 247.32 ms. Allocated memory is still 202.4 MB. Free memory was 178.3 MB in the beginning and 166.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1185.09 ms. Allocated memory was 202.4 MB in the beginning and 231.2 MB in the end (delta: 28.8 MB). Free memory was 166.2 MB in the beginning and 201.2 MB in the end (delta: -35.1 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 40]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 61 SDtfs, 24 SDslu, 89 SDs, 0 SdLazy, 29 SolverSat, 1 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 110 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 124 ConstructedInterpolants, 4 QuantifiedInterpolants, 4624 SizeOfPredicates, 10 NumberOfNonLiveVariables, 183 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...