/usr/bin/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 18:09:47,395 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 18:09:47,400 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 18:09:47,425 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 18:09:47,425 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 18:09:47,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 18:09:47,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 18:09:47,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 18:09:47,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 18:09:47,450 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 18:09:47,453 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 18:09:47,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 18:09:47,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 18:09:47,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 18:09:47,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 18:09:47,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 18:09:47,464 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 18:09:47,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 18:09:47,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 18:09:47,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 18:09:47,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 18:09:47,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 18:09:47,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 18:09:47,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 18:09:47,492 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 18:09:47,492 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 18:09:47,492 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 18:09:47,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 18:09:47,496 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 18:09:47,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 18:09:47,498 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 18:09:47,499 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 18:09:47,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 18:09:47,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 18:09:47,503 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 18:09:47,504 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 18:09:47,505 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 18:09:47,505 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 18:09:47,505 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 18:09:47,507 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 18:09:47,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 18:09:47,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 18:09:47,542 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 18:09:47,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 18:09:47,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 18:09:47,549 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 18:09:47,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 18:09:47,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 18:09:47,551 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 18:09:47,551 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 18:09:47,551 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 18:09:47,551 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 18:09:47,551 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 18:09:47,552 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 18:09:47,552 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 18:09:47,552 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 18:09:47,552 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 18:09:47,552 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 18:09:47,553 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 18:09:47,553 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 18:09:47,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 18:09:47,558 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 18:09:47,558 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 18:09:47,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 18:09:47,558 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 18:09:47,890 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 18:09:47,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 18:09:47,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 18:09:47,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 18:09:47,913 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 18:09:47,914 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2020-07-17 18:09:48,017 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d513c1c68/84b794470630417cb3158b56429b19ba/FLAG4124e2722 [2020-07-17 18:09:48,694 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 18:09:48,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-industry-pattern/ofuf_4.c [2020-07-17 18:09:48,706 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d513c1c68/84b794470630417cb3158b56429b19ba/FLAG4124e2722 [2020-07-17 18:09:48,919 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d513c1c68/84b794470630417cb3158b56429b19ba [2020-07-17 18:09:48,931 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 18:09:48,935 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 18:09:48,937 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 18:09:48,937 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 18:09:48,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 18:09:48,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 06:09:48" (1/1) ... [2020-07-17 18:09:48,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cbb9ccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:09:48, skipping insertion in model container [2020-07-17 18:09:48,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 06:09:48" (1/1) ... [2020-07-17 18:09:48,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 18:09:48,999 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 18:09:49,497 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 18:09:49,512 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 18:09:49,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 18:09:49,653 INFO L208 MainTranslator]: Completed translation [2020-07-17 18:09:49,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:09:49 WrapperNode [2020-07-17 18:09:49,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 18:09:49,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 18:09:49,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 18:09:49,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 18:09:49,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:09:49" (1/1) ... [2020-07-17 18:09:49,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:09:49" (1/1) ... [2020-07-17 18:09:49,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:09:49" (1/1) ... [2020-07-17 18:09:49,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:09:49" (1/1) ... [2020-07-17 18:09:49,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:09:49" (1/1) ... [2020-07-17 18:09:49,749 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:09:49" (1/1) ... [2020-07-17 18:09:49,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:09:49" (1/1) ... [2020-07-17 18:09:49,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 18:09:49,765 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 18:09:49,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 18:09:49,766 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 18:09:49,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:09:49" (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 [2020-07-17 18:09:49,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 18:09:49,842 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 18:09:49,842 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 18:09:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure avoid_zero [2020-07-17 18:09:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_89 [2020-07-17 18:09:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_92 [2020-07-17 18:09:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_95 [2020-07-17 18:09:49,843 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_96 [2020-07-17 18:09:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_97 [2020-07-17 18:09:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_99 [2020-07-17 18:09:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure Id_MCDC_100 [2020-07-17 18:09:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 18:09:49,844 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 18:09:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 18:09:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 18:09:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 18:09:49,845 INFO L130 BoogieDeclarations]: Found specification of procedure avoid_zero [2020-07-17 18:09:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure strcmp [2020-07-17 18:09:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_89 [2020-07-17 18:09:49,846 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_92 [2020-07-17 18:09:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_95 [2020-07-17 18:09:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_96 [2020-07-17 18:09:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_97 [2020-07-17 18:09:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-17 18:09:49,847 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_99 [2020-07-17 18:09:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure Id_MCDC_100 [2020-07-17 18:09:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure fopen [2020-07-17 18:09:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 18:09:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 18:09:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 18:09:49,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-17 18:09:49,849 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-17 18:09:49,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-17 18:09:49,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-17 18:09:49,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 18:09:49,849 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-17 18:09:49,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-17 18:09:49,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 18:09:49,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2020-07-17 18:09:49,850 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 18:09:51,258 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 18:09:51,259 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-07-17 18:09:51,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 06:09:51 BoogieIcfgContainer [2020-07-17 18:09:51,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 18:09:51,271 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 18:09:51,271 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 18:09:51,276 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 18:09:51,276 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 06:09:48" (1/3) ... [2020-07-17 18:09:51,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237b9b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 06:09:51, skipping insertion in model container [2020-07-17 18:09:51,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 06:09:49" (2/3) ... [2020-07-17 18:09:51,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@237b9b65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 06:09:51, skipping insertion in model container [2020-07-17 18:09:51,279 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 06:09:51" (3/3) ... [2020-07-17 18:09:51,281 INFO L109 eAbstractionObserver]: Analyzing ICFG ofuf_4.c [2020-07-17 18:09:51,295 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 18:09:51,305 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 18:09:51,321 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 18:09:51,347 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 18:09:51,348 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 18:09:51,348 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 18:09:51,348 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 18:09:51,348 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 18:09:51,348 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 18:09:51,348 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 18:09:51,348 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 18:09:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 512 states. [2020-07-17 18:09:51,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-17 18:09:51,413 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:09:51,415 INFO L422 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 18:09:51,415 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:09:51,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:09:51,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1624982731, now seen corresponding path program 1 times [2020-07-17 18:09:51,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:09:51,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [933885332] [2020-07-17 18:09:51,433 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:09:51,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:09:52,023 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2020-07-17 18:09:52,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:09:52,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:09:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:09:52,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 18:09:52,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 18:09:52,236 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [933885332] [2020-07-17 18:09:52,239 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 18:09:52,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 18:09:52,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797925608] [2020-07-17 18:09:52,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 18:09:52,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 18:09:52,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 18:09:52,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 18:09:52,278 INFO L87 Difference]: Start difference. First operand 512 states. Second operand 4 states. [2020-07-17 18:09:52,522 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2020-07-17 18:09:54,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 18:09:54,157 INFO L93 Difference]: Finished difference Result 897 states and 1019 transitions. [2020-07-17 18:09:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 18:09:54,160 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 179 [2020-07-17 18:09:54,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 18:09:54,183 INFO L225 Difference]: With dead ends: 897 [2020-07-17 18:09:54,184 INFO L226 Difference]: Without dead ends: 498 [2020-07-17 18:09:54,194 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 18:09:54,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 498 states. [2020-07-17 18:09:54,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 498 to 498. [2020-07-17 18:09:54,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 498 states. [2020-07-17 18:09:54,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 545 transitions. [2020-07-17 18:09:54,414 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 545 transitions. Word has length 179 [2020-07-17 18:09:54,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 18:09:54,416 INFO L479 AbstractCegarLoop]: Abstraction has 498 states and 545 transitions. [2020-07-17 18:09:54,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 18:09:54,417 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 545 transitions. [2020-07-17 18:09:54,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2020-07-17 18:09:54,423 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 18:09:54,424 INFO L422 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 18:09:54,424 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 18:09:54,425 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 18:09:54,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 18:09:54,425 INFO L82 PathProgramCache]: Analyzing trace with hash 1662269429, now seen corresponding path program 1 times [2020-07-17 18:09:54,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 18:09:54,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253983630] [2020-07-17 18:09:54,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 18:09:54,493 ERROR L271 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2020-07-17 18:09:54,494 WARN L168 FreeRefinementEngine]: Strategy FIXED_PREFERENCES was unsuccessful and could not determine trace feasibility [2020-07-17 18:09:54,494 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-17 18:09:54,502 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 18:09:54,535 WARN L231 ceAbstractionStarter]: Unable to decide correctness. Please check the following counterexample manually. [2020-07-17 18:09:54,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 06:09:54 BoogieIcfgContainer [2020-07-17 18:09:54,536 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 18:09:54,539 INFO L168 Benchmark]: Toolchain (without parser) took 5604.97 ms. Allocated memory was 143.7 MB in the beginning and 305.1 MB in the end (delta: 161.5 MB). Free memory was 99.5 MB in the beginning and 254.2 MB in the end (delta: -154.8 MB). Peak memory consumption was 6.7 MB. Max. memory is 7.1 GB. [2020-07-17 18:09:54,540 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 143.7 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 18:09:54,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.47 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 99.0 MB in the beginning and 172.6 MB in the end (delta: -73.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2020-07-17 18:09:54,543 INFO L168 Benchmark]: Boogie Preprocessor took 108.86 ms. Allocated memory is still 202.4 MB. Free memory was 172.6 MB in the beginning and 168.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-17 18:09:54,544 INFO L168 Benchmark]: RCFGBuilder took 1504.41 ms. Allocated memory was 202.4 MB in the beginning and 232.3 MB in the end (delta: 29.9 MB). Free memory was 168.5 MB in the beginning and 193.2 MB in the end (delta: -24.7 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. [2020-07-17 18:09:54,545 INFO L168 Benchmark]: TraceAbstraction took 3265.30 ms. Allocated memory was 232.3 MB in the beginning and 305.1 MB in the end (delta: 72.9 MB). Free memory was 193.2 MB in the beginning and 254.2 MB in the end (delta: -61.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2020-07-17 18:09:54,550 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 143.7 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.47 ms. Allocated memory was 143.7 MB in the beginning and 202.4 MB in the end (delta: 58.7 MB). Free memory was 99.0 MB in the beginning and 172.6 MB in the end (delta: -73.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.86 ms. Allocated memory is still 202.4 MB. Free memory was 172.6 MB in the beginning and 168.5 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1504.41 ms. Allocated memory was 202.4 MB in the beginning and 232.3 MB in the end (delta: 29.9 MB). Free memory was 168.5 MB in the beginning and 193.2 MB in the end (delta: -24.7 MB). Peak memory consumption was 89.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3265.30 ms. Allocated memory was 232.3 MB in the beginning and 305.1 MB in the end (delta: 72.9 MB). Free memory was 193.2 MB in the beginning and 254.2 MB in the end (delta: -61.1 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 461]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L179] unsigned int Id_MCDC_104; [L180] UINT16 Id_MCDC_105; [L181] UINT16 Id_MCDC_106; [L182] Od_IndexTable* Id_MCDC_107; [L183] Od_IndexTable* Id_MCDC_108; [L184] Od_IndexTable* Id_MCDC_109; [L185] Od_IndexTable* Id_MCDC_110; [L186] Od_IndexTable* Id_MCDC_111; [L187] UINT32 Id_MCDC_112 [4]; [L188] CanOpenNode Id_MCDC_113; [L189] UINT32 Id_MCDC_114=0; [L427] void * Id_MCDC_143; [L428] void * Id_MCDC_144; [L429] void * Id_MCDC_145; [L430] void * Id_MCDC_146; [L431] void * Id_MCDC_147; [L432] void * Id_MCDC_148; [L433] int Id_MCDC_149; [L434] int Id_MCDC_150; [L435] int Id_MCDC_151; [L436] int Id_MCDC_152; [L437] int Id_MCDC_153; [L438] int Id_MCDC_154; [L439] int Id_MCDC_155; [L440] short Id_MCDC_156; [L441] short Id_MCDC_157; [L442] FILE* Id_MCDC_158; [L443] unsigned short Id_MCDC_159; [L444] unsigned short Id_MCDC_160; [L445] unsigned short Id_MCDC_161=0; [L446] unsigned short Id_MCDC_162=0; [L447] char Id_MCDC_163; [L448] char Id_MCDC_164; [L449] Id_MCDC_158 = fopen("in.eds", "r") [L450] COND FALSE !(Id_MCDC_158 == (( void * ) 0)) [L455] CALL Id_MCDC_100() [L420] int Id_MCDC_141; [L421] void * Id_MCDC_142; [L422] CALL Id_MCDC_99() [L400] CHAR Id_MCDC_139 [4]={0, 0, 0, 0}; [L401] UINT32 Id_MCDC_140=0; [L402] Id_MCDC_113.Id_MCDC_66 = ( PDO_Buffer* ) malloc(372) [L403] CALL Id_MCDC_97() [L331] UINT32 Id_MCDC_123; [L332] UINT32 Id_MCDC_124; [L333] UINT32 Id_MCDC_125; [L334] UINT32 Id_MCDC_126; [L335] UINT32 Id_MCDC_127; [L336] UINT32 Id_MCDC_128=0x00; [L337] UINT16 Id_MCDC_129; [L338] UINT32 Id_MCDC_130=0x00; [L339] UINT32 Id_MCDC_131=0x00; [L340] UINT8 Id_MCDC_35=0; [L341] UINT8 Id_MCDC_132=0; [L342] UINT8 Id_MCDC_36=0; [L343] UINT8 Id_MCDC_133=0; [L344] UINT8 Id_MCDC_134=0x00; [L345] INT32 Id_MCDC_135; [L346] void * Id_MCDC_136; [L347] UINT32* Id_MCDC_137; [L348] UINT16 Id_MCDC_138; [L349] Id_MCDC_123 = 0x1800 [L350] Id_MCDC_132 = 0 [L350] COND FALSE !(Id_MCDC_132 < 4) [L354] COND FALSE !(Id_MCDC_123 <= 0x1803) [L396] return 0x00; [L336] UINT32 Id_MCDC_128=0x00; [L396] return 0x00; [L338] UINT32 Id_MCDC_130=0x00; [L396] return 0x00; [L339] UINT32 Id_MCDC_131=0x00; [L396] return 0x00; [L396] return 0x00; [L396] return 0x00; [L403] RET Id_MCDC_97() [L404] Id_MCDC_140 = 0 [L404] COND FALSE !(Id_MCDC_140 < 4) [L415] CALL Id_MCDC_95(4, Id_MCDC_139) [L280] UINT32 Id_MCDC_121=0; [L281] UINT32 Id_MCDC_122=0; [L282] COND FALSE !(Id_MCDC_93 < 2) [L286] COND FALSE !(Id_MCDC_93 != 2) [L292] EXPR Id_MCDC_94[1] [L292] Id_MCDC_122 = Id_MCDC_94[1] [L294] EXPR Id_MCDC_94[0] [L294] CALL, EXPR Id_MCDC_92(Id_MCDC_94[0], Id_MCDC_122) [L249] UINT32 Id_MCDC_117=0; [L250] UINT32 Id_MCDC_118=0; [L251] UINT32 Id_MCDC_119=1; [L252] UINT32 Id_MCDC_120=0; [L253] COND FALSE !(Id_MCDC_90 > Id_MCDC_91) [L259] COND FALSE !(Id_MCDC_90 < Id_MCDC_91) [L266] return Id_MCDC_90; [L294] RET, EXPR Id_MCDC_92(Id_MCDC_94[0], Id_MCDC_122) [L294] Id_MCDC_121 = Id_MCDC_92(Id_MCDC_94[0], Id_MCDC_122) [L295] CALL avoid_zero(Id_MCDC_121 != 0) [L9] COND FALSE !(!y) [L295] RET avoid_zero(Id_MCDC_121 != 0) [L296] EXPR Id_MCDC_94[0] [L296] EXPR ( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) >= 0 && ( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) <= 4294967295 [L296] CALL __VERIFIER_assert(( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) >= 0 && ( long long ) ((Id_MCDC_94[0] * Id_MCDC_122) / Id_MCDC_121) <= 4294967295) [L459] COND TRUE ! (Id_MCDC_103) [L461] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 13 procedures, 517 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNKNOWN, OverallTime: 3.1s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 520 SDtfs, 547 SDslu, 143 SDs, 0 SdLazy, 430 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=512occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 178 ConstructedInterpolants, 0 QuantifiedInterpolants, 53578 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...