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.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-31 21:43:30,486 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 21:43:30,488 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 21:43:30,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 21:43:30,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 21:43:30,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 21:43:30,504 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 21:43:30,506 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 21:43:30,519 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 21:43:30,520 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 21:43:30,521 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 21:43:30,522 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-31 21:43:30,522 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-31 21:43:30,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-31 21:43:30,524 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-31 21:43:30,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-31 21:43:30,526 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-31 21:43:30,527 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-31 21:43:30,528 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-31 21:43:30,530 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-31 21:43:30,531 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-31 21:43:30,532 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-31 21:43:30,533 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-31 21:43:30,534 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-31 21:43:30,536 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-31 21:43:30,539 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-31 21:43:30,540 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-31 21:43:30,540 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-31 21:43:30,541 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-31 21:43:30,542 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-31 21:43:30,542 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-31 21:43:30,543 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-31 21:43:30,543 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-31 21:43:30,543 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 21:43:30,544 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 21:43:30,545 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 21:43:30,548 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 [2019-08-31 21:43:30,562 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 21:43:30,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 21:43:30,563 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 21:43:30,563 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 21:43:30,564 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 21:43:30,564 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 21:43:30,564 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 21:43:30,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 21:43:30,565 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 21:43:30,565 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 21:43:30,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 21:43:30,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 21:43:30,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 21:43:30,565 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 21:43:30,566 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 21:43:30,566 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 21:43:30,566 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 21:43:30,566 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 21:43:30,566 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 21:43:30,567 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 21:43:30,567 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 21:43:30,567 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 21:43:30,567 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 21:43:30,567 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 21:43:30,568 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 21:43:30,568 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 21:43:30,568 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 21:43:30,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 21:43:30,568 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 21:43:30,606 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 21:43:30,619 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 21:43:30,624 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 21:43:30,626 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 21:43:30,628 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 21:43:30,629 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-08-31 21:43:30,715 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7234357ec/8613b20a39424bd797085ac24a84c69c/FLAG385551376 [2019-08-31 21:43:31,312 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 21:43:31,312 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-08-31 21:43:31,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7234357ec/8613b20a39424bd797085ac24a84c69c/FLAG385551376 [2019-08-31 21:43:31,561 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7234357ec/8613b20a39424bd797085ac24a84c69c [2019-08-31 21:43:31,570 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 21:43:31,571 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 21:43:31,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 21:43:31,573 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 21:43:31,576 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 21:43:31,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:43:31" (1/1) ... [2019-08-31 21:43:31,580 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c06b6ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:43:31, skipping insertion in model container [2019-08-31 21:43:31,580 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:43:31" (1/1) ... [2019-08-31 21:43:31,588 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 21:43:31,660 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 21:43:32,129 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 21:43:32,150 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 21:43:32,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 21:43:32,314 INFO L192 MainTranslator]: Completed translation [2019-08-31 21:43:32,314 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:43:32 WrapperNode [2019-08-31 21:43:32,314 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 21:43:32,315 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 21:43:32,315 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 21:43:32,316 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 21:43:32,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:43:32" (1/1) ... [2019-08-31 21:43:32,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:43:32" (1/1) ... [2019-08-31 21:43:32,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:43:32" (1/1) ... [2019-08-31 21:43:32,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:43:32" (1/1) ... [2019-08-31 21:43:32,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:43:32" (1/1) ... [2019-08-31 21:43:32,400 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:43:32" (1/1) ... [2019-08-31 21:43:32,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:43:32" (1/1) ... [2019-08-31 21:43:32,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 21:43:32,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 21:43:32,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 21:43:32,414 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 21:43:32,415 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:43:32" (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 [2019-08-31 21:43:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 21:43:32,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 21:43:32,503 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 21:43:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 21:43:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-08-31 21:43:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-08-31 21:43:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-08-31 21:43:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-31 21:43:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-08-31 21:43:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-08-31 21:43:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-08-31 21:43:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-08-31 21:43:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-08-31 21:43:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-08-31 21:43:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-08-31 21:43:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-08-31 21:43:32,510 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 21:43:32,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 21:43:32,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 21:43:33,860 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 21:43:33,861 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-31 21:43:33,862 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:43:33 BoogieIcfgContainer [2019-08-31 21:43:33,863 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 21:43:33,863 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 21:43:33,863 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 21:43:33,864 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 21:43:33,865 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:43:33" (1/1) ... [2019-08-31 21:43:33,935 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 21:43:33,936 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 21:43:33,963 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-31 21:43:33,980 INFO L179 IcfgInterpreter]: Starting interpretation [2019-08-31 21:43:33,982 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-08-31 21:43:34,218 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-31 21:43:34,219 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-31 21:43:34,219 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-31 21:43:34,231 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 [2019-08-31 21:43:34,232 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 21:43:34,703 WARN L188 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-08-31 21:43:34,704 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 21:43:34,726 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:43:34,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:43:34,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:43:34,730 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:43:34,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:43:34,732 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:43:34,736 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 [2019-08-31 21:43:34,736 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-31 21:43:35,158 WARN L188 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2019-08-31 21:43:35,159 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 21:43:35,160 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-31 21:43:35,160 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:274, output treesize:284 [2019-08-31 21:43:35,238 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 431 for LOIs