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 0.1.24-584d7b9 [2019-08-31 21:39:23,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 21:39:23,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 21:39:23,438 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 21:39:23,438 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 21:39:23,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 21:39:23,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 21:39:23,451 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 21:39:23,455 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 21:39:23,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 21:39:23,457 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 21:39:23,458 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-31 21:39:23,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-31 21:39:23,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-31 21:39:23,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-31 21:39:23,461 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-31 21:39:23,462 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-31 21:39:23,462 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-31 21:39:23,464 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-31 21:39:23,466 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-31 21:39:23,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-31 21:39:23,468 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-31 21:39:23,469 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-31 21:39:23,470 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-31 21:39:23,472 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-31 21:39:23,474 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-31 21:39:23,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-31 21:39:23,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-31 21:39:23,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-31 21:39:23,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-31 21:39:23,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-31 21:39:23,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-31 21:39:23,479 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-31 21:39:23,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 21:39:23,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 21:39:23,480 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 21:39:23,481 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 21:39:23,501 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 21:39:23,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 21:39:23,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 21:39:23,503 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 21:39:23,503 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 21:39:23,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 21:39:23,503 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 21:39:23,503 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 21:39:23,504 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 21:39:23,504 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 21:39:23,504 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 21:39:23,504 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 21:39:23,504 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 21:39:23,505 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 21:39:23,505 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 21:39:23,505 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 21:39:23,505 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 21:39:23,505 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 21:39:23,506 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 21:39:23,506 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 21:39:23,506 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 21:39:23,506 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 21:39:23,507 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 21:39:23,507 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 21:39:23,507 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 21:39:23,507 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 21:39:23,507 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 21:39:23,508 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 21:39:23,508 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 21:39:23,536 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 21:39:23,549 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 21:39:23,553 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 21:39:23,554 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 21:39:23,555 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 21:39:23,555 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-08-31 21:39:23,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80dc9345/e5d6a6ac3b684883b9f4ebbba4ba8812/FLAGb1f16c2d2 [2019-08-31 21:39:24,202 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 21:39:24,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.4.ufo.UNBOUNDED.pals.c.v+cfa-reducer.c [2019-08-31 21:39:24,218 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80dc9345/e5d6a6ac3b684883b9f4ebbba4ba8812/FLAGb1f16c2d2 [2019-08-31 21:39:24,444 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d80dc9345/e5d6a6ac3b684883b9f4ebbba4ba8812 [2019-08-31 21:39:24,457 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 21:39:24,459 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 21:39:24,460 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 21:39:24,460 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 21:39:24,463 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 21:39:24,464 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:39:24" (1/1) ... [2019-08-31 21:39:24,467 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b0aa6ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:39:24, skipping insertion in model container [2019-08-31 21:39:24,467 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 09:39:24" (1/1) ... [2019-08-31 21:39:24,475 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 21:39:24,553 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 21:39:25,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 21:39:25,097 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 21:39:25,255 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 21:39:25,287 INFO L192 MainTranslator]: Completed translation [2019-08-31 21:39:25,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:39:25 WrapperNode [2019-08-31 21:39:25,288 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 21:39:25,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 21:39:25,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 21:39:25,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 21:39:25,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:39:25" (1/1) ... [2019-08-31 21:39:25,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:39:25" (1/1) ... [2019-08-31 21:39:25,321 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:39:25" (1/1) ... [2019-08-31 21:39:25,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:39:25" (1/1) ... [2019-08-31 21:39:25,374 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:39:25" (1/1) ... [2019-08-31 21:39:25,391 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:39:25" (1/1) ... [2019-08-31 21:39:25,396 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:39:25" (1/1) ... [2019-08-31 21:39:25,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 21:39:25,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 21:39:25,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 21:39:25,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 21:39:25,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 09:39:25" (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 21:39:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 21:39:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 21:39:25,469 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 21:39:25,469 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 21:39:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-08-31 21:39:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-08-31 21:39:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-08-31 21:39:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-08-31 21:39:25,470 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-31 21:39:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-08-31 21:39:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-08-31 21:39:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-08-31 21:39:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-08-31 21:39:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-08-31 21:39:25,471 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-08-31 21:39:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-08-31 21:39:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-08-31 21:39:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 21:39:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 21:39:25,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 21:39:26,943 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 21:39:26,943 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-31 21:39:26,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:39:26 BoogieIcfgContainer [2019-08-31 21:39:26,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 21:39:26,946 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 21:39:26,946 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 21:39:26,946 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 21:39:26,947 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 09:39:26" (1/1) ... [2019-08-31 21:39:27,002 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 21:39:27,002 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 21:39:27,015 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-31 21:39:27,023 INFO L179 IcfgInterpreter]: Starting interpretation [2019-08-31 21:39:27,025 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-08-31 21:39:27,198 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-31 21:39:27,203 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-31 21:39:27,204 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-31 21:39:27,218 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 21:39:27,219 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 21:39:27,766 WARN L188 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2019-08-31 21:39:27,767 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 21:39:27,804 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:39:27,805 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:39:27,806 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:39:27,807 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:39:27,809 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:39:27,810 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-31 21:39:27,813 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 21:39:27,813 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-31 21:39:28,296 WARN L188 SmtUtils]: Spent 481.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2019-08-31 21:39:28,296 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 21:39:28,297 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-31 21:39:28,298 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:271, output treesize:281 [2019-08-31 21:39:28,384 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 427 for LOIs