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/array-multidimensional/copy-2-u.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 05:35:40,865 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 05:35:40,867 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 05:35:40,879 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-09 05:35:40,879 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-09 05:35:40,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-09 05:35:40,881 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-09 05:35:40,883 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-09 05:35:40,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-09 05:35:40,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-09 05:35:40,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-09 05:35:40,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-09 05:35:40,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 05:35:40,889 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 05:35:40,891 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 05:35:40,892 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 05:35:40,893 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 05:35:40,894 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 05:35:40,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 05:35:40,898 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 05:35:40,900 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 05:35:40,901 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 05:35:40,902 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 05:35:40,903 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 05:35:40,905 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-09 05:35:40,908 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 05:35:40,909 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 05:35:40,910 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 05:35:40,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 05:35:40,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 05:35:40,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 05:35:40,913 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 05:35:40,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 05:35:40,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 05:35:40,914 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 05:35:40,915 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 05:35:40,916 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 05:35:40,931 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 05:35:40,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 05:35:40,932 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 05:35:40,932 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 05:35:40,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 05:35:40,933 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 05:35:40,933 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 05:35:40,933 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 05:35:40,933 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 05:35:40,933 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 05:35:40,934 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 05:35:40,934 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 05:35:40,934 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 05:35:40,935 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 05:35:40,935 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 05:35:40,935 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 05:35:40,935 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 05:35:40,935 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 05:35:40,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 05:35:40,936 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 05:35:40,936 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 05:35:40,936 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 05:35:40,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 05:35:40,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:35:40,937 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 05:35:40,937 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 05:35:40,937 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 05:35:40,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 05:35:40,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 05:35:40,938 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 05:35:40,968 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 05:35:40,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 05:35:40,986 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 05:35:40,987 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 05:35:40,988 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 05:35:40,988 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-multidimensional/copy-2-u.c [2019-09-09 05:35:41,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da4b705b/d9c6e24dbc904a838fbb6135e9173dc9/FLAG050f402d6 [2019-09-09 05:35:41,491 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 05:35:41,492 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-multidimensional/copy-2-u.c [2019-09-09 05:35:41,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da4b705b/d9c6e24dbc904a838fbb6135e9173dc9/FLAG050f402d6 [2019-09-09 05:35:41,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7da4b705b/d9c6e24dbc904a838fbb6135e9173dc9 [2019-09-09 05:35:41,905 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 05:35:41,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 05:35:41,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 05:35:41,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 05:35:41,912 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 05:35:41,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:35:41" (1/1) ... [2019-09-09 05:35:41,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fe21a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:41, skipping insertion in model container [2019-09-09 05:35:41,918 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:35:41" (1/1) ... [2019-09-09 05:35:41,926 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 05:35:41,950 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 05:35:42,161 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:35:42,165 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 05:35:42,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:35:42,208 INFO L192 MainTranslator]: Completed translation [2019-09-09 05:35:42,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:42 WrapperNode [2019-09-09 05:35:42,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 05:35:42,209 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 05:35:42,209 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 05:35:42,210 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 05:35:42,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:42" (1/1) ... [2019-09-09 05:35:42,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:42" (1/1) ... [2019-09-09 05:35:42,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:42" (1/1) ... [2019-09-09 05:35:42,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:42" (1/1) ... [2019-09-09 05:35:42,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:42" (1/1) ... [2019-09-09 05:35:42,331 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:42" (1/1) ... [2019-09-09 05:35:42,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:42" (1/1) ... [2019-09-09 05:35:42,334 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 05:35:42,335 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 05:35:42,335 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 05:35:42,335 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 05:35:42,336 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:42" (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 05:35:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 05:35:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 05:35:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-09 05:35:42,388 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 05:35:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 05:35:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-09 05:35:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 05:35:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 05:35:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-09 05:35:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-09 05:35:42,389 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-09 05:35:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-09 05:35:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 05:35:42,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 05:35:42,709 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 05:35:42,709 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-09 05:35:42,711 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:35:42 BoogieIcfgContainer [2019-09-09 05:35:42,712 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 05:35:42,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 05:35:42,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 05:35:42,723 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 05:35:42,724 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 05:35:41" (1/3) ... [2019-09-09 05:35:42,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3350273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:35:42, skipping insertion in model container [2019-09-09 05:35:42,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:35:42" (2/3) ... [2019-09-09 05:35:42,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3350273 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:35:42, skipping insertion in model container [2019-09-09 05:35:42,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:35:42" (3/3) ... [2019-09-09 05:35:42,729 INFO L109 eAbstractionObserver]: Analyzing ICFG copy-2-u.c [2019-09-09 05:35:42,739 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 05:35:42,761 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 05:35:42,780 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 05:35:42,811 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 05:35:42,812 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 05:35:42,812 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 05:35:42,812 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 05:35:42,812 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 05:35:42,812 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 05:35:42,812 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 05:35:42,812 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 05:35:42,826 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-09-09 05:35:42,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-09 05:35:42,835 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:35:42,836 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:35:42,838 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:35:42,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:42,844 INFO L82 PathProgramCache]: Analyzing trace with hash -1035913628, now seen corresponding path program 1 times [2019-09-09 05:35:42,847 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:35:42,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:42,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:42,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:42,899 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:35:42,933 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-09 05:35:42,934 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-09 05:35:42,934 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 [2019-09-09 05:35:42,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:42,948 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-09 05:35:42,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:35:42,976 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-09 05:35:42,978 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-09 05:35:42,978 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:35:42,978 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 [2019-09-09 05:35:42,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:42,997 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-09 05:35:43,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:35:43,031 INFO L256 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-09 05:35:43,038 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-09 05:35:43,085 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 05:35:43,085 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-09 05:35:43,146 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 05:35:43,152 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:35:43,153 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2019-09-09 05:35:43,153 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:35:43,163 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:35:43,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:35:43,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-09 05:35:43,186 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2019-09-09 05:35:43,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:35:43,292 INFO L93 Difference]: Finished difference Result 33 states and 39 transitions. [2019-09-09 05:35:43,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:35:43,296 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2019-09-09 05:35:43,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:35:43,307 INFO L225 Difference]: With dead ends: 33 [2019-09-09 05:35:43,307 INFO L226 Difference]: Without dead ends: 28 [2019-09-09 05:35:43,312 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 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 05:35:43,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-09-09 05:35:43,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2019-09-09 05:35:43,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2019-09-09 05:35:43,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2019-09-09 05:35:43,364 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 16 [2019-09-09 05:35:43,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:35:43,365 INFO L475 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2019-09-09 05:35:43,365 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:35:43,366 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2019-09-09 05:35:43,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-09 05:35:43,367 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:35:43,368 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:35:43,369 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:35:43,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:43,369 INFO L82 PathProgramCache]: Analyzing trace with hash 573516244, now seen corresponding path program 1 times [2019-09-09 05:35:43,370 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:35:43,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:43,372 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:43,372 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:35:43,372 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:35:43,398 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-09 05:35:43,398 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-09 05:35:43,398 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) [2019-09-09 05:35:43,425 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:35:43,426 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-09 05:35:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:35:43,453 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2019-09-09 05:35:43,456 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [12], [14], [21], [27], [31], [38], [57], [66], [75], [87], [90], [92], [98], [99], [100], [102] [2019-09-09 05:35:43,502 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 05:35:43,502 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 05:35:43,566 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 05:35:43,568 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 16 root evaluator evaluations with a maximum evaluation depth of 0. Performed 16 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 21 variables. [2019-09-09 05:35:43,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:35:43,571 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 05:35:43,604 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-09 05:35:43,604 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-09 05:35:43,606 INFO L420 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2019-09-09 05:35:43,607 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-09 05:35:43,607 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:35:43,608 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-09 05:35:43,608 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:35:43,609 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:35:43,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:35:43,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:35:43,609 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 2 states. [2019-09-09 05:35:43,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:35:43,610 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-09 05:35:43,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:35:43,611 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2019-09-09 05:35:43,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:35:43,611 INFO L225 Difference]: With dead ends: 6 [2019-09-09 05:35:43,611 INFO L226 Difference]: Without dead ends: 0 [2019-09-09 05:35:43,612 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:35:43,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-09 05:35:43,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-09 05:35:43,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-09 05:35:43,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-09 05:35:43,613 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-09-09 05:35:43,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:35:43,614 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-09 05:35:43,614 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:35:43,614 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-09 05:35:43,614 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-09 05:35:43,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 05:35:43 BoogieIcfgContainer [2019-09-09 05:35:43,621 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 05:35:43,624 INFO L168 Benchmark]: Toolchain (without parser) took 1716.20 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 92.1 MB in the beginning and 112.9 MB in the end (delta: -20.8 MB). Peak memory consumption was 45.8 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:43,625 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 135.8 MB. Free memory was 110.3 MB in the beginning and 110.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-09 05:35:43,626 INFO L168 Benchmark]: CACSL2BoogieTranslator took 301.34 ms. Allocated memory is still 135.8 MB. Free memory was 91.9 MB in the beginning and 81.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:43,627 INFO L168 Benchmark]: Boogie Preprocessor took 125.39 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 81.1 MB in the beginning and 178.2 MB in the end (delta: -97.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:43,628 INFO L168 Benchmark]: RCFGBuilder took 376.57 ms. Allocated memory is still 202.4 MB. Free memory was 178.2 MB in the beginning and 162.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:43,629 INFO L168 Benchmark]: TraceAbstraction took 901.89 ms. Allocated memory is still 202.4 MB. Free memory was 162.1 MB in the beginning and 112.9 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2019-09-09 05:35:43,635 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 135.8 MB. Free memory was 110.3 MB in the beginning and 110.1 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 301.34 ms. Allocated memory is still 135.8 MB. Free memory was 91.9 MB in the beginning and 81.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 125.39 ms. Allocated memory was 135.8 MB in the beginning and 202.4 MB in the end (delta: 66.6 MB). Free memory was 81.1 MB in the beginning and 178.2 MB in the end (delta: -97.1 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 376.57 ms. Allocated memory is still 202.4 MB. Free memory was 178.2 MB in the beginning and 162.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 901.89 ms. Allocated memory is still 202.4 MB. Free memory was 162.1 MB in the beginning and 112.9 MB in the end (delta: 49.2 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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, 30 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 36 SDtfs, 3 SDslu, 17 SDs, 0 SdLazy, 21 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 49 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9027777777777778 AbsIntWeakeningRatio, 1.0555555555555556 AbsIntAvgWeakeningVarsNumRemoved, 0.3333333333333333 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 570 SizeOfPredicates, 2 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...