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_2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 21:00:14,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 21:00:14,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 21:00:14,423 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 21:00:14,432 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 21:00:14,433 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 21:00:14,434 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 21:00:14,435 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 21:00:14,436 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 21:00:14,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 21:00:14,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 21:00:14,441 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 21:00:14,442 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 21:00:14,443 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 21:00:14,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 21:00:14,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 21:00:14,447 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 21:00:14,450 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-03 21:00:14,451 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-03 21:00:14,451 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-03 21:00:14,452 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-03 21:00:14,453 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-03 21:00:14,453 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-03 21:00:14,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-03 21:00:14,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-03 21:00:14,455 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 21:00:14,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 21:00:14,456 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 21:00:14,457 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 [2019-09-03 21:00:14,481 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 21:00:14,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 21:00:14,482 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 21:00:14,482 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 21:00:14,483 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 21:00:14,487 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 21:00:14,487 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 21:00:14,487 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 21:00:14,488 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 21:00:14,488 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 21:00:14,489 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 21:00:14,489 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 21:00:14,490 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 21:00:14,490 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 21:00:14,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 21:00:14,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 21:00:14,491 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 21:00:14,491 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 21:00:14,491 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 21:00:14,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 21:00:14,492 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 21:00:14,492 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 21:00:14,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 21:00:14,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 21:00:14,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 21:00:14,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 21:00:14,494 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 21:00:14,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 21:00:14,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 21:00:14,494 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 21:00:14,540 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 21:00:14,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 21:00:14,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 21:00:14,557 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 21:00:14,558 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 21:00:14,559 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2019-09-03 21:00:14,639 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f1ee433/91969fa11b76485c95d2d688dda62075/FLAG4e2bd4d0a [2019-09-03 21:00:15,170 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 21:00:15,171 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_2.c [2019-09-03 21:00:15,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f1ee433/91969fa11b76485c95d2d688dda62075/FLAG4e2bd4d0a [2019-09-03 21:00:15,474 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/91f1ee433/91969fa11b76485c95d2d688dda62075 [2019-09-03 21:00:15,483 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 21:00:15,484 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 21:00:15,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 21:00:15,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 21:00:15,490 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 21:00:15,491 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:00:15" (1/1) ... [2019-09-03 21:00:15,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3658fbbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:00:15, skipping insertion in model container [2019-09-03 21:00:15,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 09:00:15" (1/1) ... [2019-09-03 21:00:15,501 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 21:00:15,547 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 21:00:15,930 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:00:15,943 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 21:00:16,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 21:00:16,055 INFO L192 MainTranslator]: Completed translation [2019-09-03 21:00:16,055 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:00:16 WrapperNode [2019-09-03 21:00:16,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 21:00:16,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 21:00:16,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 21:00:16,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 21:00:16,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:00:16" (1/1) ... [2019-09-03 21:00:16,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:00:16" (1/1) ... [2019-09-03 21:00:16,088 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:00:16" (1/1) ... [2019-09-03 21:00:16,089 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:00:16" (1/1) ... [2019-09-03 21:00:16,121 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:00:16" (1/1) ... [2019-09-03 21:00:16,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:00:16" (1/1) ... [2019-09-03 21:00:16,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:00:16" (1/1) ... [2019-09-03 21:00:16,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 21:00:16,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 21:00:16,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 21:00:16,143 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 21:00:16,144 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:00:16" (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 [2019-09-03 21:00:16,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 21:00:16,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 21:00:16,202 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2019-09-03 21:00:16,202 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2019-09-03 21:00:16,202 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2019-09-03 21:00:16,202 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2019-09-03 21:00:16,202 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2019-09-03 21:00:16,202 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2019-09-03 21:00:16,202 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2019-09-03 21:00:16,202 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2019-09-03 21:00:16,203 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 21:00:16,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-03 21:00:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 21:00:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-03 21:00:16,203 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2019-09-03 21:00:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2019-09-03 21:00:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2019-09-03 21:00:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2019-09-03 21:00:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2019-09-03 21:00:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2019-09-03 21:00:16,204 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2019-09-03 21:00:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2019-09-03 21:00:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-03 21:00:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2019-09-03 21:00:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2019-09-03 21:00:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2019-09-03 21:00:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 21:00:16,205 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 21:00:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-03 21:00:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-03 21:00:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-03 21:00:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-03 21:00:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-03 21:00:16,206 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-03 21:00:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-03 21:00:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-03 21:00:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 21:00:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-03 21:00:16,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 21:00:17,101 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 21:00:17,102 INFO L283 CfgBuilder]: Removed 7 assume(true) statements. [2019-09-03 21:00:17,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:00:17 BoogieIcfgContainer [2019-09-03 21:00:17,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 21:00:17,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-03 21:00:17,106 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-03 21:00:17,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-03 21:00:17,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.09 09:00:15" (1/3) ... [2019-09-03 21:00:17,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2ef381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 09:00:17, skipping insertion in model container [2019-09-03 21:00:17,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 09:00:16" (2/3) ... [2019-09-03 21:00:17,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b2ef381 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 09:00:17, skipping insertion in model container [2019-09-03 21:00:17,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 09:00:17" (3/3) ... [2019-09-03 21:00:17,114 INFO L109 eAbstractionObserver]: Analyzing ICFG ofuf_2.c [2019-09-03 21:00:17,125 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-03 21:00:17,140 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-03 21:00:17,157 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-03 21:00:17,191 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-03 21:00:17,191 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-03 21:00:17,191 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-03 21:00:17,191 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-03 21:00:17,192 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-03 21:00:17,192 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-03 21:00:17,192 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-03 21:00:17,192 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-03 21:00:17,209 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2019-09-03 21:00:17,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-09-03 21:00:17,225 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 21:00:17,226 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 21:00:17,228 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 21:00:17,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 21:00:17,234 INFO L82 PathProgramCache]: Analyzing trace with hash 1024985055, now seen corresponding path program 1 times [2019-09-03 21:00:17,237 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 21:00:17,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 21:00:17,289 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 21:00:17,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 21:00:17,290 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 21:00:17,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 21:00:17,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 21:00:17,556 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-03 21:00:17,556 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-03 21:00:17,556 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-03 21:00:17,561 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-03 21:00:17,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-03 21:00:17,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-03 21:00:17,574 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 2 states. [2019-09-03 21:00:17,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 21:00:17,602 INFO L93 Difference]: Finished difference Result 128 states and 175 transitions. [2019-09-03 21:00:17,602 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-03 21:00:17,603 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 39 [2019-09-03 21:00:17,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 21:00:17,615 INFO L225 Difference]: With dead ends: 128 [2019-09-03 21:00:17,615 INFO L226 Difference]: Without dead ends: 119 [2019-09-03 21:00:17,617 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 [2019-09-03 21:00:17,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-09-03 21:00:17,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-09-03 21:00:17,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-09-03 21:00:17,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 165 transitions. [2019-09-03 21:00:17,693 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 165 transitions. Word has length 39 [2019-09-03 21:00:17,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 21:00:17,694 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 165 transitions. [2019-09-03 21:00:17,694 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-03 21:00:17,694 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 165 transitions. [2019-09-03 21:00:17,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-09-03 21:00:17,698 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 21:00:17,698 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 21:00:17,700 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 21:00:17,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 21:00:17,702 INFO L82 PathProgramCache]: Analyzing trace with hash 29519587, now seen corresponding path program 1 times [2019-09-03 21:00:17,702 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 21:00:17,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 21:00:17,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 21:00:17,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 21:00:17,704 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 21:00:17,765 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-03 21:00:17,765 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-03 21:00:17,766 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 [2019-09-03 21:00:17,782 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 21:00:17,782 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-03 21:00:17,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 21:00:17,841 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-03 21:00:17,843 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-03 21:00:17,844 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-03 21:00:17,845 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-03 21:00:17,864 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 21:00:17,864 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-03 21:00:17,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 21:00:17,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 3 conjunts are in the unsatisfiable core [2019-09-03 21:00:18,008 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-03 21:00:18,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 21:00:18,068 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-03 21:00:18,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 21:00:18,130 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-03 21:00:18,131 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2019-09-03 21:00:18,131 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-03 21:00:18,132 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-03 21:00:18,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-03 21:00:18,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-09-03 21:00:18,133 INFO L87 Difference]: Start difference. First operand 119 states and 165 transitions. Second operand 4 states. [2019-09-03 21:00:18,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 21:00:18,185 INFO L93 Difference]: Finished difference Result 117 states and 163 transitions. [2019-09-03 21:00:18,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-03 21:00:18,188 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2019-09-03 21:00:18,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 21:00:18,188 INFO L225 Difference]: With dead ends: 117 [2019-09-03 21:00:18,189 INFO L226 Difference]: Without dead ends: 0 [2019-09-03 21:00:18,191 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 73 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-03 21:00:18,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-03 21:00:18,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-03 21:00:18,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-03 21:00:18,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-03 21:00:18,192 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2019-09-03 21:00:18,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 21:00:18,193 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-03 21:00:18,193 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-03 21:00:18,193 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-03 21:00:18,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-03 21:00:18,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.09 09:00:18 BoogieIcfgContainer [2019-09-03 21:00:18,201 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-03 21:00:18,204 INFO L168 Benchmark]: Toolchain (without parser) took 2717.94 ms. Allocated memory was 140.5 MB in the beginning and 226.5 MB in the end (delta: 86.0 MB). Free memory was 87.4 MB in the beginning and 136.2 MB in the end (delta: -48.8 MB). Peak memory consumption was 37.2 MB. Max. memory is 7.1 GB. [2019-09-03 21:00:18,206 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 21:00:18,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.43 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 87.2 MB in the beginning and 169.1 MB in the end (delta: -81.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:00:18,210 INFO L168 Benchmark]: Boogie Preprocessor took 86.14 ms. Allocated memory is still 200.3 MB. Free memory was 169.1 MB in the beginning and 165.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2019-09-03 21:00:18,210 INFO L168 Benchmark]: RCFGBuilder took 961.76 ms. Allocated memory is still 200.3 MB. Free memory was 165.0 MB in the beginning and 105.9 MB in the end (delta: 59.1 MB). Peak memory consumption was 59.1 MB. Max. memory is 7.1 GB. [2019-09-03 21:00:18,212 INFO L168 Benchmark]: TraceAbstraction took 1095.00 ms. Allocated memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: 26.2 MB). Free memory was 105.9 MB in the beginning and 136.2 MB in the end (delta: -30.3 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-09-03 21:00:18,219 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 140.5 MB. Free memory was 106.6 MB in the beginning and 106.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 569.43 ms. Allocated memory was 140.5 MB in the beginning and 200.3 MB in the end (delta: 59.8 MB). Free memory was 87.2 MB in the beginning and 169.1 MB in the end (delta: -81.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.14 ms. Allocated memory is still 200.3 MB. Free memory was 169.1 MB in the beginning and 165.6 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 961.76 ms. Allocated memory is still 200.3 MB. Free memory was 165.0 MB in the beginning and 105.9 MB in the end (delta: 59.1 MB). Peak memory consumption was 59.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1095.00 ms. Allocated memory was 200.3 MB in the beginning and 226.5 MB in the end (delta: 26.2 MB). Free memory was 105.9 MB in the beginning and 136.2 MB in the end (delta: -30.3 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 458]: 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, 128 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 335 SDtfs, 5 SDslu, 317 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 75 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=128occurred 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, 0.2s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 114 ConstructedInterpolants, 0 QuantifiedInterpolants, 4636 SizeOfPredicates, 5 NumberOfNonLiveVariables, 532 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...