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_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-18 10:41:39,208 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-18 10:41:39,211 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-18 10:41:39,231 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-18 10:41:39,231 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-18 10:41:39,233 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-18 10:41:39,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-18 10:41:39,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-18 10:41:39,253 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-18 10:41:39,255 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-18 10:41:39,257 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-18 10:41:39,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-18 10:41:39,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-18 10:41:39,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-18 10:41:39,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-18 10:41:39,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-18 10:41:39,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-18 10:41:39,274 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-18 10:41:39,277 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-18 10:41:39,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-18 10:41:39,287 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-18 10:41:39,290 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-18 10:41:39,293 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-18 10:41:39,294 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-18 10:41:39,297 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-18 10:41:39,303 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-18 10:41:39,305 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-18 10:41:39,306 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-18 10:41:39,307 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-18 10:41:39,310 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-18 10:41:39,310 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-18 10:41:39,311 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-18 10:41:39,311 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-18 10:41:39,311 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-18 10:41:39,312 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-18 10:41:39,313 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-18 10:41:39,314 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 [2019-08-18 10:41:39,338 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-18 10:41:39,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-18 10:41:39,341 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-18 10:41:39,341 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-18 10:41:39,342 INFO L138 SettingsManager]: * Use SBE=true [2019-08-18 10:41:39,342 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-18 10:41:39,342 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-18 10:41:39,342 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-18 10:41:39,343 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-18 10:41:39,343 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-18 10:41:39,344 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-18 10:41:39,344 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-18 10:41:39,345 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-18 10:41:39,345 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-18 10:41:39,345 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-18 10:41:39,346 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-18 10:41:39,346 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-18 10:41:39,346 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-18 10:41:39,347 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-18 10:41:39,347 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-18 10:41:39,347 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-18 10:41:39,347 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-18 10:41:39,347 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-18 10:41:39,348 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-18 10:41:39,348 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-18 10:41:39,348 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-18 10:41:39,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-18 10:41:39,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-18 10:41:39,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-18 10:41:39,423 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-18 10:41:39,445 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-18 10:41:39,450 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-18 10:41:39,452 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-18 10:41:39,452 INFO L275 PluginConnector]: CDTParser initialized [2019-08-18 10:41:39,453 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-08-18 10:41:39,528 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e90d44df/aee7d885cf584f3a9b3e9f6d4c84f18d/FLAG4d7de4940 [2019-08-18 10:41:40,066 INFO L306 CDTParser]: Found 1 translation units. [2019-08-18 10:41:40,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-08-18 10:41:40,102 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e90d44df/aee7d885cf584f3a9b3e9f6d4c84f18d/FLAG4d7de4940 [2019-08-18 10:41:40,326 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e90d44df/aee7d885cf584f3a9b3e9f6d4c84f18d [2019-08-18 10:41:40,341 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-18 10:41:40,343 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-18 10:41:40,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-18 10:41:40,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-18 10:41:40,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-18 10:41:40,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:41:40" (1/1) ... [2019-08-18 10:41:40,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fe84f20 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:40, skipping insertion in model container [2019-08-18 10:41:40,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:41:40" (1/1) ... [2019-08-18 10:41:40,363 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-18 10:41:40,438 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-18 10:41:40,832 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 10:41:40,851 INFO L188 MainTranslator]: Completed pre-run [2019-08-18 10:41:41,137 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 10:41:41,168 INFO L192 MainTranslator]: Completed translation [2019-08-18 10:41:41,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:41 WrapperNode [2019-08-18 10:41:41,169 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-18 10:41:41,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-18 10:41:41,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-18 10:41:41,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-18 10:41:41,184 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:41" (1/1) ... [2019-08-18 10:41:41,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:41" (1/1) ... [2019-08-18 10:41:41,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:41" (1/1) ... [2019-08-18 10:41:41,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:41" (1/1) ... [2019-08-18 10:41:41,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:41" (1/1) ... [2019-08-18 10:41:41,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:41" (1/1) ... [2019-08-18 10:41:41,257 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:41" (1/1) ... [2019-08-18 10:41:41,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-18 10:41:41,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-18 10:41:41,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-18 10:41:41,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-18 10:41:41,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:41:41" (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 [2019-08-18 10:41:41,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-18 10:41:41,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-18 10:41:41,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-18 10:41:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-18 10:41:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-08-18 10:41:41,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-08-18 10:41:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-08-18 10:41:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-08-18 10:41:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-18 10:41:41,356 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-08-18 10:41:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-08-18 10:41:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-08-18 10:41:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-08-18 10:41:41,357 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-08-18 10:41:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-08-18 10:41:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-08-18 10:41:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-08-18 10:41:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-18 10:41:41,358 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-18 10:41:41,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-18 10:41:43,014 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-18 10:41:43,017 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-18 10:41:43,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:41:43 BoogieIcfgContainer [2019-08-18 10:41:43,019 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-18 10:41:43,019 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-18 10:41:43,019 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-18 10:41:43,020 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-18 10:41:43,021 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:41:43" (1/1) ... [2019-08-18 10:41:43,042 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-18 10:41:43,044 INFO L155 IcfgInterpreter]: Building call graph [2019-08-18 10:41:43,054 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-18 10:41:43,063 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-18 10:41:43,065 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-18 10:41:43,213 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-18 10:41:43,219 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-18 10:41:43,221 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-18 10:41:43,236 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 15 treesize of output 21 [2019-08-18 10:41:43,237 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 10:41:43,720 WARN L188 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-08-18 10:41:43,722 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 10:41:43,749 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:41:43,750 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:41:43,751 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:41:43,752 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:41:43,753 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:41:43,754 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:41:43,758 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 12 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 21 [2019-08-18 10:41:43,759 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-18 10:41:44,255 WARN L188 SmtUtils]: Spent 494.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-08-18 10:41:44,256 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 10:41:44,257 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-18 10:41:44,259 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:281 [2019-08-18 10:41:44,342 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 324