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/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-01cf0bf [2019-08-22 02:01:15,283 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-22 02:01:15,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-22 02:01:15,297 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-22 02:01:15,297 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-22 02:01:15,298 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-22 02:01:15,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-22 02:01:15,301 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-22 02:01:15,303 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-22 02:01:15,304 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-22 02:01:15,305 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-22 02:01:15,306 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-22 02:01:15,306 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-22 02:01:15,307 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-22 02:01:15,308 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-22 02:01:15,309 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-22 02:01:15,310 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-22 02:01:15,311 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-22 02:01:15,312 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-22 02:01:15,314 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-22 02:01:15,315 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-22 02:01:15,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-22 02:01:15,318 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-22 02:01:15,318 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-22 02:01:15,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-22 02:01:15,321 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-22 02:01:15,321 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-22 02:01:15,322 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-22 02:01:15,324 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-22 02:01:15,325 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-22 02:01:15,325 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-22 02:01:15,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-22 02:01:15,326 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-22 02:01:15,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-22 02:01:15,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-22 02:01:15,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-22 02:01:15,329 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-22 02:01:15,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-22 02:01:15,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-22 02:01:15,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-22 02:01:15,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-22 02:01:15,331 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 02:01:15,347 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-22 02:01:15,348 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-22 02:01:15,349 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-22 02:01:15,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-22 02:01:15,349 INFO L138 SettingsManager]: * Use SBE=true [2019-08-22 02:01:15,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-22 02:01:15,350 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-22 02:01:15,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-22 02:01:15,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-22 02:01:15,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-22 02:01:15,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-22 02:01:15,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-22 02:01:15,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-22 02:01:15,351 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-22 02:01:15,351 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-22 02:01:15,351 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-22 02:01:15,351 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-22 02:01:15,352 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-22 02:01:15,352 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-22 02:01:15,352 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-22 02:01:15,352 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-22 02:01:15,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-22 02:01:15,353 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-22 02:01:15,353 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-22 02:01:15,353 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-22 02:01:15,353 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-22 02:01:15,354 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-22 02:01:15,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-22 02:01:15,354 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-22 02:01:15,382 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-22 02:01:15,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-22 02:01:15,401 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-22 02:01:15,403 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-22 02:01:15,403 INFO L275 PluginConnector]: CDTParser initialized [2019-08-22 02:01:15,404 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2019-08-22 02:01:15,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01bb19df5/f3edc93c9c83485184c60a6b583082f3/FLAG0e3dced83 [2019-08-22 02:01:16,016 INFO L306 CDTParser]: Found 1 translation units. [2019-08-22 02:01:16,017 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.3.4.ufo.BOUNDED-6.pals.c.v+nlh-reducer.c [2019-08-22 02:01:16,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01bb19df5/f3edc93c9c83485184c60a6b583082f3/FLAG0e3dced83 [2019-08-22 02:01:16,262 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/01bb19df5/f3edc93c9c83485184c60a6b583082f3 [2019-08-22 02:01:16,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-22 02:01:16,273 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-22 02:01:16,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-22 02:01:16,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-22 02:01:16,279 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-22 02:01:16,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:01:16" (1/1) ... [2019-08-22 02:01:16,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e8f303f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:01:16, skipping insertion in model container [2019-08-22 02:01:16,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 02:01:16" (1/1) ... [2019-08-22 02:01:16,291 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-22 02:01:16,371 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-22 02:01:17,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 02:01:17,084 INFO L188 MainTranslator]: Completed pre-run [2019-08-22 02:01:17,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 02:01:17,271 INFO L192 MainTranslator]: Completed translation [2019-08-22 02:01:17,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:01:17 WrapperNode [2019-08-22 02:01:17,272 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-22 02:01:17,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-22 02:01:17,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-22 02:01:17,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-22 02:01:17,284 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:01:17" (1/1) ... [2019-08-22 02:01:17,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:01:17" (1/1) ... [2019-08-22 02:01:17,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:01:17" (1/1) ... [2019-08-22 02:01:17,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:01:17" (1/1) ... [2019-08-22 02:01:17,330 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:01:17" (1/1) ... [2019-08-22 02:01:17,353 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:01:17" (1/1) ... [2019-08-22 02:01:17,358 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:01:17" (1/1) ... [2019-08-22 02:01:17,366 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-22 02:01:17,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-22 02:01:17,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-22 02:01:17,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-22 02:01:17,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 02:01:17" (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 02:01:17,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-22 02:01:17,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-22 02:01:17,446 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-22 02:01:17,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-22 02:01:17,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-08-22 02:01:17,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-08-22 02:01:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-08-22 02:01:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-22 02:01:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-08-22 02:01:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-08-22 02:01:17,447 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-08-22 02:01:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-08-22 02:01:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-08-22 02:01:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-08-22 02:01:17,448 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-08-22 02:01:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-22 02:01:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-22 02:01:17,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-22 02:01:19,000 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-22 02:01:19,000 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-22 02:01:19,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:01:19 BoogieIcfgContainer [2019-08-22 02:01:19,003 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-22 02:01:19,004 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-22 02:01:19,004 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-22 02:01:19,004 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-22 02:01:19,005 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 02:01:19" (1/1) ... [2019-08-22 02:01:19,026 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-22 02:01:19,037 INFO L155 IcfgInterpreter]: Building call graph [2019-08-22 02:01:19,058 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-22 02:01:19,067 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-22 02:01:19,068 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-22 02:01:19,191 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-22 02:01:19,192 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-22 02:01:19,203 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2019-08-22 02:01:19,204 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-22 02:01:19,477 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 140 [2019-08-22 02:01:19,479 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 02:01:19,496 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-22 02:01:19,498 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-22 02:01:19,499 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-22 02:01:19,502 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 16 [2019-08-22 02:01:19,503 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-22 02:01:19,795 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 141 [2019-08-22 02:01:19,796 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 02:01:19,797 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-22 02:01:19,797 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:199, output treesize:205 [2019-08-22 02:01:19,850 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 278