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 -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:40:09,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:40:09,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:40:09,433 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:40:09,433 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:40:09,434 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:40:09,435 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:40:09,437 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:40:09,439 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:40:09,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:40:09,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:40:09,442 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:40:09,442 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:40:09,443 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:40:09,444 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:40:09,445 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:40:09,446 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:40:09,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:40:09,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:40:09,450 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:40:09,452 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:40:09,453 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:40:09,454 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:40:09,455 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:40:09,457 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 01:40:09,460 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:40:09,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:40:09,462 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:40:09,462 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:40:09,463 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:40:09,464 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:40:09,464 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:40:09,465 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:40:09,465 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:40:09,466 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:40:09,466 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:40:09,467 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 01:40:09,481 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:40:09,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:40:09,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:40:09,482 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:40:09,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:40:09,483 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:40:09,483 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:40:09,483 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:40:09,484 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:40:09,484 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:40:09,484 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:40:09,485 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:40:09,485 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:40:09,485 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:40:09,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:40:09,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:40:09,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:40:09,486 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:40:09,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:40:09,486 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:40:09,486 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:40:09,487 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:40:09,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:40:09,487 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:40:09,487 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:40:09,487 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:40:09,487 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:40:09,488 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:40:09,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:40:09,488 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:40:09,516 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:40:09,528 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:40:09,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:40:09,532 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:40:09,533 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:40:09,533 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/zonotope_loose.c [2019-09-10 01:40:09,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9280bc7/813b76d4698d4f73b6c28befc7d9edd7/FLAG01f69ffe9 [2019-09-10 01:40:10,050 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:40:10,051 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/zonotope_loose.c [2019-09-10 01:40:10,058 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9280bc7/813b76d4698d4f73b6c28befc7d9edd7/FLAG01f69ffe9 [2019-09-10 01:40:10,460 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ce9280bc7/813b76d4698d4f73b6c28befc7d9edd7 [2019-09-10 01:40:10,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:40:10,469 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:40:10,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:40:10,471 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:40:10,476 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:40:10,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:40:10" (1/1) ... [2019-09-10 01:40:10,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350286e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:10, skipping insertion in model container [2019-09-10 01:40:10,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:40:10" (1/1) ... [2019-09-10 01:40:10,487 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:40:10,503 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:40:10,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:40:10,660 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:40:10,673 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:40:10,685 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:40:10,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:10 WrapperNode [2019-09-10 01:40:10,686 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:40:10,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:40:10,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:40:10,687 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:40:10,786 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:10" (1/1) ... [2019-09-10 01:40:10,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:10" (1/1) ... [2019-09-10 01:40:10,791 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:10" (1/1) ... [2019-09-10 01:40:10,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:10" (1/1) ... [2019-09-10 01:40:10,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:10" (1/1) ... [2019-09-10 01:40:10,797 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:10" (1/1) ... [2019-09-10 01:40:10,798 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:10" (1/1) ... [2019-09-10 01:40:10,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:40:10,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:40:10,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:40:10,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:40:10,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:10" (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 01:40:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:40:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:40:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-10 01:40:10,848 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:40:10,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:40:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-10 01:40:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:40:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 01:40:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:40:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:40:10,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:40:10,997 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:40:10,997 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 01:40:10,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:40:10 BoogieIcfgContainer [2019-09-10 01:40:10,999 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:40:11,000 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:40:11,000 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:40:11,002 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:40:11,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:40:10" (1/3) ... [2019-09-10 01:40:11,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ac54e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:40:11, skipping insertion in model container [2019-09-10 01:40:11,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:40:10" (2/3) ... [2019-09-10 01:40:11,003 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ac54e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:40:11, skipping insertion in model container [2019-09-10 01:40:11,003 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:40:10" (3/3) ... [2019-09-10 01:40:11,005 INFO L109 eAbstractionObserver]: Analyzing ICFG zonotope_loose.c [2019-09-10 01:40:11,013 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:40:11,020 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:40:11,035 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:40:11,061 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:40:11,061 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:40:11,061 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:40:11,061 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:40:11,062 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:40:11,062 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:40:11,062 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:40:11,062 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:40:11,076 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-09-10 01:40:11,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 01:40:11,086 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:40:11,087 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:40:11,089 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:40:11,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:40:11,094 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2019-09-10 01:40:11,096 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:40:11,132 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:11,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:11,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:11,133 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:40:11,152 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:40:11,152 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:40:11,152 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 01:40:11,171 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:11,172 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:40:11,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:11,185 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 01:40:11,187 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 01:40:11,187 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:40:11,187 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:40:11,200 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:11,200 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 01:40:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:11,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 9 conjunts are in the unsatisfiable core [2019-09-10 01:40:11,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:40:11,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 01:40:11,369 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 01:40:11,369 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:40:11,462 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 01:40:11,466 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:40:11,466 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-09-10 01:40:11,466 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:40:11,471 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 01:40:11,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 01:40:11,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-10 01:40:11,489 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2019-09-10 01:40:11,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:40:11,598 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2019-09-10 01:40:11,599 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 01:40:11,601 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-09-10 01:40:11,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:40:11,617 INFO L225 Difference]: With dead ends: 26 [2019-09-10 01:40:11,618 INFO L226 Difference]: Without dead ends: 11 [2019-09-10 01:40:11,624 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2019-09-10 01:40:11,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-09-10 01:40:11,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-09-10 01:40:11,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-09-10 01:40:11,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2019-09-10 01:40:11,673 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2019-09-10 01:40:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:40:11,674 INFO L475 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2019-09-10 01:40:11,674 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 01:40:11,674 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2019-09-10 01:40:11,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-10 01:40:11,675 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:40:11,676 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:40:11,676 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:40:11,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:40:11,677 INFO L82 PathProgramCache]: Analyzing trace with hash -1734924095, now seen corresponding path program 1 times [2019-09-10 01:40:11,678 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:40:11,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:11,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:11,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:40:11,680 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:40:11,684 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:40:11,684 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:40:11,684 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 01:40:11,701 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:11,702 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:40:11,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:11,717 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 01:40:11,717 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 01:40:11,717 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 01:40:11,718 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) [2019-09-10 01:40:11,739 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:40:11,739 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-10 01:40:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:40:11,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 27 conjuncts, 11 conjunts are in the unsatisfiable core [2019-09-10 01:40:11,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 01:40:11,821 WARN L838 $PredicateComparison]: unable to prove that (exists ((v_main_~y~0_12 Real) (main_~x~0 Real)) (let ((.cse0 (* main_~x~0 main_~x~0))) (and (<= main_~x~0 10.0) (>= v_main_~y~0_12 (+ (- main_~x~0) .cse0)) (= c_main_~y~0 (+ .cse0 2.0)) (< v_main_~y~0_12 (to_real 0)) (<= 0.0 main_~x~0)))) is different from false [2019-09-10 01:40:11,828 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 01:40:11,902 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 01:40:11,903 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 01:40:12,145 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 14 DAG size of output: 11 [2019-09-10 01:40:12,162 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 01:40:12,166 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:40:12,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-09-10 01:40:12,167 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:40:12,168 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-10 01:40:12,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-10 01:40:12,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=50, Unknown=5, NotChecked=14, Total=90 [2019-09-10 01:40:12,171 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 6 states. [2019-09-10 01:40:12,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:40:12,207 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2019-09-10 01:40:12,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-10 01:40:12,208 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-09-10 01:40:12,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:40:12,210 INFO L225 Difference]: With dead ends: 9 [2019-09-10 01:40:12,210 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:40:12,211 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=61, Unknown=6, NotChecked=16, Total=110 [2019-09-10 01:40:12,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:40:12,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:40:12,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:40:12,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:40:12,213 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-09-10 01:40:12,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:40:12,215 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:40:12,215 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-10 01:40:12,215 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:40:12,215 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:40:12,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:40:12 BoogieIcfgContainer [2019-09-10 01:40:12,224 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:40:12,227 INFO L168 Benchmark]: Toolchain (without parser) took 1756.13 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 90.8 MB in the beginning and 99.9 MB in the end (delta: -9.1 MB). Peak memory consumption was 57.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:12,229 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:40:12,231 INFO L168 Benchmark]: CACSL2BoogieTranslator took 216.01 ms. Allocated memory is still 134.7 MB. Free memory was 90.6 MB in the beginning and 81.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:12,232 INFO L168 Benchmark]: Boogie Preprocessor took 113.03 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 81.5 MB in the beginning and 177.3 MB in the end (delta: -95.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:12,234 INFO L168 Benchmark]: RCFGBuilder took 198.89 ms. Allocated memory is still 200.8 MB. Free memory was 177.3 MB in the beginning and 166.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:12,235 INFO L168 Benchmark]: TraceAbstraction took 1224.56 ms. Allocated memory is still 200.8 MB. Free memory was 166.7 MB in the beginning and 99.9 MB in the end (delta: 66.8 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:40:12,244 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 134.7 MB. Free memory was 109.2 MB in the beginning and 109.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 216.01 ms. Allocated memory is still 134.7 MB. Free memory was 90.6 MB in the beginning and 81.5 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.03 ms. Allocated memory was 134.7 MB in the beginning and 200.8 MB in the end (delta: 66.1 MB). Free memory was 81.5 MB in the beginning and 177.3 MB in the end (delta: -95.9 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 198.89 ms. Allocated memory is still 200.8 MB. Free memory was 177.3 MB in the beginning and 166.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1224.56 ms. Allocated memory is still 200.8 MB. Free memory was 166.7 MB in the beginning and 99.9 MB in the end (delta: 66.8 MB). Peak memory consumption was 66.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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 4 procedures, 18 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 19 SDtfs, 14 SDslu, 68 SDs, 0 SdLazy, 22 SolverSat, 2 SolverUnsat, 3 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 1 QuantifiedInterpolants, 1305 SizeOfPredicates, 6 NumberOfNonLiveVariables, 54 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...