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/loop-industry-pattern/ofuf_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 02:14:02,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 02:14:02,287 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 02:14:02,304 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-10 02:14:02,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 02:14:02,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 02:14:02,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 02:14:02,335 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 02:14:02,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 02:14:02,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 02:14:02,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 02:14:02,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 02:14:02,349 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 02:14:02,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 02:14:02,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 02:14:02,354 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 02:14:02,355 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 02:14:02,358 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 02:14:02,359 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 02:14:02,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 02:14:02,360 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 02:14:02,361 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 02:14:02,361 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 02:14:02,362 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 02:14:02,362 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 02:14:02,362 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 02:14:02,363 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 02:14:02,364 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 02:14:02,365 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 02:14:02,379 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 02:14:02,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 02:14:02,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 02:14:02,380 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 02:14:02,380 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 02:14:02,381 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 02:14:02,381 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 02:14:02,381 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 02:14:02,381 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 02:14:02,381 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 02:14:02,382 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 02:14:02,382 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 02:14:02,383 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 02:14:02,383 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 02:14:02,383 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 02:14:02,383 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 02:14:02,383 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 02:14:02,383 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 02:14:02,384 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 02:14:02,384 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 02:14:02,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 02:14:02,384 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 02:14:02,385 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 02:14:02,385 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 02:14:02,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 02:14:02,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 02:14:02,385 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 02:14:02,386 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 02:14:02,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 02:14:02,386 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 02:14:02,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 02:14:02,428 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 02:14:02,431 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 02:14:02,433 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 02:14:02,433 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 02:14:02,434 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_1.c [2019-09-10 02:14:02,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b424b82/ef6f77746e1048b5838f6a211635d204/FLAG08fc00a59 [2019-09-10 02:14:03,016 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 02:14:03,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_1.c [2019-09-10 02:14:03,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b424b82/ef6f77746e1048b5838f6a211635d204/FLAG08fc00a59 [2019-09-10 02:14:03,335 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/71b424b82/ef6f77746e1048b5838f6a211635d204 [2019-09-10 02:14:03,344 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 02:14:03,345 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 02:14:03,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 02:14:03,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 02:14:03,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 02:14:03,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:14:03" (1/1) ... [2019-09-10 02:14:03,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6117c621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:14:03, skipping insertion in model container [2019-09-10 02:14:03,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 02:14:03" (1/1) ... [2019-09-10 02:14:03,361 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 02:14:03,408 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 02:14:03,845 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:14:03,858 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 02:14:03,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 02:14:03,991 INFO L192 MainTranslator]: Completed translation [2019-09-10 02:14:03,992 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:14:03 WrapperNode [2019-09-10 02:14:03,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 02:14:03,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 02:14:03,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 02:14:03,993 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 02:14:04,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:14:03" (1/1) ... [2019-09-10 02:14:04,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:14:03" (1/1) ... [2019-09-10 02:14:04,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:14:03" (1/1) ... [2019-09-10 02:14:04,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:14:03" (1/1) ... [2019-09-10 02:14:04,051 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:14:03" (1/1) ... [2019-09-10 02:14:04,062 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:14:03" (1/1) ... [2019-09-10 02:14:04,067 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:14:03" (1/1) ... [2019-09-10 02:14:04,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 02:14:04,076 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 02:14:04,076 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 02:14:04,077 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 02:14:04,077 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:14:03" (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 02:14:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 02:14:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 02:14:04,133 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2019-09-10 02:14:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_107 [2019-09-10 02:14:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_110 [2019-09-10 02:14:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_113 [2019-09-10 02:14:04,134 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_114 [2019-09-10 02:14:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_115 [2019-09-10 02:14:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_117 [2019-09-10 02:14:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_118 [2019-09-10 02:14:04,135 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 02:14:04,136 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-10 02:14:04,136 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 02:14:04,137 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 02:14:04,137 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-10 02:14:04,138 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2019-09-10 02:14:04,138 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-09-10 02:14:04,138 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_107 [2019-09-10 02:14:04,138 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_110 [2019-09-10 02:14:04,139 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_113 [2019-09-10 02:14:04,139 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_114 [2019-09-10 02:14:04,139 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_115 [2019-09-10 02:14:04,140 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-10 02:14:04,140 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_117 [2019-09-10 02:14:04,142 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_118 [2019-09-10 02:14:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-09-10 02:14:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 02:14:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 02:14:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 02:14:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-10 02:14:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 02:14:04,143 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-10 02:14:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 02:14:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 02:14:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-10 02:14:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-10 02:14:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 02:14:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-10 02:14:04,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 02:14:04,929 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 02:14:04,929 INFO L283 CfgBuilder]: Removed 7 assume(true) statements. [2019-09-10 02:14:04,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:14:04 BoogieIcfgContainer [2019-09-10 02:14:04,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 02:14:04,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 02:14:04,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 02:14:04,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 02:14:04,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 02:14:03" (1/3) ... [2019-09-10 02:14:04,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10748af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:14:04, skipping insertion in model container [2019-09-10 02:14:04,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 02:14:03" (2/3) ... [2019-09-10 02:14:04,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10748af5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 02:14:04, skipping insertion in model container [2019-09-10 02:14:04,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 02:14:04" (3/3) ... [2019-09-10 02:14:04,939 INFO L109 eAbstractionObserver]: Analyzing ICFG ofuf_1.c [2019-09-10 02:14:04,948 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 02:14:04,957 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 02:14:04,971 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 02:14:04,994 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 02:14:04,994 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 02:14:04,994 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 02:14:04,994 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 02:14:04,994 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 02:14:04,994 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 02:14:04,995 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 02:14:04,995 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 02:14:05,011 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states. [2019-09-10 02:14:05,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-09-10 02:14:05,025 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:14:05,026 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:14:05,028 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:14:05,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:14:05,033 INFO L82 PathProgramCache]: Analyzing trace with hash -1195136075, now seen corresponding path program 1 times [2019-09-10 02:14:05,035 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:14:05,082 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:14:05,083 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:14:05,083 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:14:05,083 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:14:05,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:14:05,391 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 02:14:05,394 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:14:05,394 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-10 02:14:05,395 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:14:05,400 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-10 02:14:05,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-10 02:14:05,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:14:05,418 INFO L87 Difference]: Start difference. First operand 127 states. Second operand 2 states. [2019-09-10 02:14:05,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:14:05,450 INFO L93 Difference]: Finished difference Result 127 states and 174 transitions. [2019-09-10 02:14:05,450 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-10 02:14:05,451 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 38 [2019-09-10 02:14:05,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:14:05,463 INFO L225 Difference]: With dead ends: 127 [2019-09-10 02:14:05,463 INFO L226 Difference]: Without dead ends: 118 [2019-09-10 02:14:05,465 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-10 02:14:05,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2019-09-10 02:14:05,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2019-09-10 02:14:05,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2019-09-10 02:14:05,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 164 transitions. [2019-09-10 02:14:05,539 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 164 transitions. Word has length 38 [2019-09-10 02:14:05,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:14:05,540 INFO L475 AbstractCegarLoop]: Abstraction has 118 states and 164 transitions. [2019-09-10 02:14:05,540 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-10 02:14:05,540 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 164 transitions. [2019-09-10 02:14:05,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-09-10 02:14:05,544 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 02:14:05,544 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 02:14:05,544 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 02:14:05,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 02:14:05,545 INFO L82 PathProgramCache]: Analyzing trace with hash 579871287, now seen corresponding path program 1 times [2019-09-10 02:14:05,546 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 02:14:05,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:14:05,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:14:05,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 02:14:05,547 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 02:14:05,586 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 02:14:05,587 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 02:14:05,587 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 02:14:05,626 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:14:05,626 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 02:14:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:14:05,688 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-10 02:14:05,689 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-10 02:14:05,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-10 02:14:05,689 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 02:14:05,710 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 02:14:05,711 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-10 02:14:05,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 02:14:05,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-10 02:14:05,858 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-10 02:14:05,901 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,902 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,903 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,910 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,916 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,920 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,926 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,930 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,931 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,935 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,936 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,939 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,943 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,944 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,948 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,954 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,959 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,963 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,966 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,967 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,970 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,974 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-10 02:14:05,997 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 02:14:05,997 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-10 02:14:06,034 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 02:14:06,039 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-10 02:14:06,040 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-09-10 02:14:06,040 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 02:14:06,041 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 02:14:06,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 02:14:06,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-10 02:14:06,041 INFO L87 Difference]: Start difference. First operand 118 states and 164 transitions. Second operand 4 states. [2019-09-10 02:14:06,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 02:14:06,085 INFO L93 Difference]: Finished difference Result 116 states and 162 transitions. [2019-09-10 02:14:06,086 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 02:14:06,086 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 38 [2019-09-10 02:14:06,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 02:14:06,087 INFO L225 Difference]: With dead ends: 116 [2019-09-10 02:14:06,087 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 02:14:06,088 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 71 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 02:14:06,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 02:14:06,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 02:14:06,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 02:14:06,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 02:14:06,089 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2019-09-10 02:14:06,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 02:14:06,089 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 02:14:06,089 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 02:14:06,089 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 02:14:06,090 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 02:14:06,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 02:14:06 BoogieIcfgContainer [2019-09-10 02:14:06,096 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 02:14:06,099 INFO L168 Benchmark]: Toolchain (without parser) took 2752.41 ms. Allocated memory was 137.9 MB in the beginning and 218.6 MB in the end (delta: 80.7 MB). Free memory was 84.3 MB in the beginning and 116.8 MB in the end (delta: -32.5 MB). Peak memory consumption was 48.3 MB. Max. memory is 7.1 GB. [2019-09-10 02:14:06,100 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 02:14:06,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 646.01 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 84.1 MB in the beginning and 164.4 MB in the end (delta: -80.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:14:06,102 INFO L168 Benchmark]: Boogie Preprocessor took 83.34 ms. Allocated memory is still 198.2 MB. Free memory was 164.4 MB in the beginning and 160.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:14:06,103 INFO L168 Benchmark]: RCFGBuilder took 854.45 ms. Allocated memory is still 198.2 MB. Free memory was 160.0 MB in the beginning and 100.8 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. [2019-09-10 02:14:06,104 INFO L168 Benchmark]: TraceAbstraction took 1164.57 ms. Allocated memory was 198.2 MB in the beginning and 218.6 MB in the end (delta: 20.4 MB). Free memory was 100.2 MB in the beginning and 116.8 MB in the end (delta: -16.6 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-10 02:14:06,108 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 104.0 MB in the beginning and 103.8 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 646.01 ms. Allocated memory was 137.9 MB in the beginning and 198.2 MB in the end (delta: 60.3 MB). Free memory was 84.1 MB in the beginning and 164.4 MB in the end (delta: -80.3 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 83.34 ms. Allocated memory is still 198.2 MB. Free memory was 164.4 MB in the beginning and 160.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 854.45 ms. Allocated memory is still 198.2 MB. Free memory was 160.0 MB in the beginning and 100.8 MB in the end (delta: 59.2 MB). Peak memory consumption was 59.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1164.57 ms. Allocated memory was 198.2 MB in the beginning and 218.6 MB in the end (delta: 20.4 MB). Free memory was 100.2 MB in the beginning and 116.8 MB in the end (delta: -16.6 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 484]: 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 12 procedures, 127 locations, 1 error locations. SAFE Result, 1.1s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 333 SDtfs, 5 SDslu, 315 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=127occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 111 ConstructedInterpolants, 0 QuantifiedInterpolants, 4403 SizeOfPredicates, 4 NumberOfNonLiveVariables, 530 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...