java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/SifaC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/half_2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fab3c18 [2019-08-22 22:06:10,248 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-22 22:06:10,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-22 22:06:10,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-22 22:06:10,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-22 22:06:10,264 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-22 22:06:10,265 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-22 22:06:10,267 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-22 22:06:10,269 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-22 22:06:10,270 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-22 22:06:10,271 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-22 22:06:10,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-22 22:06:10,272 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-22 22:06:10,273 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-22 22:06:10,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-22 22:06:10,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-22 22:06:10,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-22 22:06:10,276 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-22 22:06:10,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-22 22:06:10,280 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-22 22:06:10,281 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-22 22:06:10,282 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-22 22:06:10,283 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-22 22:06:10,284 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-22 22:06:10,286 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-22 22:06:10,286 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-22 22:06:10,286 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-22 22:06:10,287 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-22 22:06:10,287 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-22 22:06:10,288 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-22 22:06:10,288 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-22 22:06:10,289 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-22 22:06:10,290 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-22 22:06:10,290 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-22 22:06:10,291 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-22 22:06:10,291 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-22 22:06:10,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-22 22:06:10,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-22 22:06:10,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-22 22:06:10,293 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-22 22:06:10,294 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-22 22:06:10,295 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-08-22 22:06:10,309 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-22 22:06:10,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-22 22:06:10,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-22 22:06:10,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-22 22:06:10,311 INFO L138 SettingsManager]: * Use SBE=true [2019-08-22 22:06:10,311 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-22 22:06:10,311 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-22 22:06:10,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-22 22:06:10,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-22 22:06:10,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-22 22:06:10,312 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-22 22:06:10,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-22 22:06:10,312 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-22 22:06:10,312 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-22 22:06:10,313 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-22 22:06:10,313 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-22 22:06:10,313 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-22 22:06:10,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-22 22:06:10,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-22 22:06:10,314 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-22 22:06:10,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-22 22:06:10,314 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-22 22:06:10,314 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-22 22:06:10,314 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-22 22:06:10,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-22 22:06:10,315 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-22 22:06:10,315 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-22 22:06:10,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-22 22:06:10,315 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-22 22:06:10,344 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-22 22:06:10,357 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-22 22:06:10,361 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-22 22:06:10,362 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-22 22:06:10,363 INFO L275 PluginConnector]: CDTParser initialized [2019-08-22 22:06:10,363 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/half_2.i [2019-08-22 22:06:10,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/085fa23f2/2523ea3bbd93435ead50f249cfa2c043/FLAGd873178af [2019-08-22 22:06:10,819 INFO L306 CDTParser]: Found 1 translation units. [2019-08-22 22:06:10,820 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/half_2.i [2019-08-22 22:06:10,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/085fa23f2/2523ea3bbd93435ead50f249cfa2c043/FLAGd873178af [2019-08-22 22:06:11,265 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/085fa23f2/2523ea3bbd93435ead50f249cfa2c043 [2019-08-22 22:06:11,274 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-22 22:06:11,276 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-22 22:06:11,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-22 22:06:11,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-22 22:06:11,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-22 22:06:11,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:06:11" (1/1) ... [2019-08-22 22:06:11,284 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ff728c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:06:11, skipping insertion in model container [2019-08-22 22:06:11,284 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:06:11" (1/1) ... [2019-08-22 22:06:11,292 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-22 22:06:11,309 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-22 22:06:11,493 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 22:06:11,497 INFO L188 MainTranslator]: Completed pre-run [2019-08-22 22:06:11,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 22:06:11,529 INFO L192 MainTranslator]: Completed translation [2019-08-22 22:06:11,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:06:11 WrapperNode [2019-08-22 22:06:11,530 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-22 22:06:11,531 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-22 22:06:11,531 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-22 22:06:11,531 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-22 22:06:11,627 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:06:11" (1/1) ... [2019-08-22 22:06:11,627 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:06:11" (1/1) ... [2019-08-22 22:06:11,635 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:06:11" (1/1) ... [2019-08-22 22:06:11,636 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:06:11" (1/1) ... [2019-08-22 22:06:11,641 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:06:11" (1/1) ... [2019-08-22 22:06:11,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:06:11" (1/1) ... [2019-08-22 22:06:11,647 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:06:11" (1/1) ... [2019-08-22 22:06:11,648 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-22 22:06:11,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-22 22:06:11,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-22 22:06:11,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-22 22:06:11,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:06:11" (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 [2019-08-22 22:06:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-22 22:06:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-22 22:06:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-22 22:06:11,706 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-22 22:06:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-22 22:06:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-22 22:06:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-22 22:06:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-22 22:06:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-22 22:06:11,707 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-22 22:06:11,708 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-22 22:06:11,897 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-22 22:06:11,897 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-22 22:06:11,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:06:11 BoogieIcfgContainer [2019-08-22 22:06:11,899 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-22 22:06:11,899 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-22 22:06:11,899 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-22 22:06:11,900 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-22 22:06:11,900 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:06:11" (1/1) ... [2019-08-22 22:06:11,915 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-22 22:06:11,918 INFO L155 IcfgInterpreter]: Building call graph [2019-08-22 22:06:11,923 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-22 22:06:11,931 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-22 22:06:11,932 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-22 22:06:11,973 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 1 [2019-08-22 22:06:38,994 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 6708 conjuctions. This might take some time... [2019-08-22 22:06:44,242 INFO L193 XnfTransformerHelper]: Simplified to disjunction of 6708 conjuctions. [2019-08-22 22:06:52,431 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 6977 conjuctions. This might take some time... [2019-08-22 22:06:58,394 INFO L193 XnfTransformerHelper]: Simplified to disjunction of 6977 conjuctions. [2019-08-22 22:07:05,322 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 6708 conjuctions. This might take some time... [2019-08-22 22:07:15,310 INFO L193 XnfTransformerHelper]: Simplified to disjunction of 6708 conjuctions. [2019-08-22 22:07:21,504 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 6339 conjuctions. This might take some time... [2019-08-22 22:07:29,224 INFO L193 XnfTransformerHelper]: Simplified to disjunction of 6339 conjuctions. [2019-08-22 22:07:34,939 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 6596 conjuctions. This might take some time...