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.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-18 12:08:35,083 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-18 12:08:35,085 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-18 12:08:35,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-18 12:08:35,104 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-18 12:08:35,106 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-18 12:08:35,108 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-18 12:08:35,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-18 12:08:35,122 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-18 12:08:35,123 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-18 12:08:35,124 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-18 12:08:35,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-18 12:08:35,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-18 12:08:35,126 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-18 12:08:35,127 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-18 12:08:35,128 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-18 12:08:35,129 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-18 12:08:35,131 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-18 12:08:35,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-18 12:08:35,135 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-18 12:08:35,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-18 12:08:35,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-18 12:08:35,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-18 12:08:35,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-18 12:08:35,148 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-18 12:08:35,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-18 12:08:35,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-18 12:08:35,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-18 12:08:35,160 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-18 12:08:35,162 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-18 12:08:35,162 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-18 12:08:35,163 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-18 12:08:35,163 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-18 12:08:35,163 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-18 12:08:35,166 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-18 12:08:35,167 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-18 12:08:35,168 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 12:08:35,186 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-18 12:08:35,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-18 12:08:35,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-18 12:08:35,191 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-18 12:08:35,191 INFO L138 SettingsManager]: * Use SBE=true [2019-08-18 12:08:35,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-18 12:08:35,192 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-18 12:08:35,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-18 12:08:35,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-18 12:08:35,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-18 12:08:35,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-18 12:08:35,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-18 12:08:35,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-18 12:08:35,193 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-18 12:08:35,193 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-18 12:08:35,194 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-18 12:08:35,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-18 12:08:35,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-18 12:08:35,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-18 12:08:35,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-18 12:08:35,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-18 12:08:35,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-18 12:08:35,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-18 12:08:35,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-18 12:08:35,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-18 12:08:35,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-18 12:08:35,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-18 12:08:35,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-18 12:08:35,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-18 12:08:35,249 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-18 12:08:35,260 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-18 12:08:35,263 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-18 12:08:35,264 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-18 12:08:35,264 INFO L275 PluginConnector]: CDTParser initialized [2019-08-18 12:08:35,265 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-08-18 12:08:35,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14989ec60/5f1f93232b5d4ab4a07f46753cfb3632/FLAGa3054aaed [2019-08-18 12:08:35,889 INFO L306 CDTParser]: Found 1 translation units. [2019-08-18 12:08:35,890 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.4.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-08-18 12:08:35,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14989ec60/5f1f93232b5d4ab4a07f46753cfb3632/FLAGa3054aaed [2019-08-18 12:08:36,225 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/14989ec60/5f1f93232b5d4ab4a07f46753cfb3632 [2019-08-18 12:08:36,233 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-18 12:08:36,235 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-18 12:08:36,236 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-18 12:08:36,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-18 12:08:36,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-18 12:08:36,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:08:36" (1/1) ... [2019-08-18 12:08:36,243 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d36bc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:08:36, skipping insertion in model container [2019-08-18 12:08:36,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 12:08:36" (1/1) ... [2019-08-18 12:08:36,250 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-18 12:08:36,324 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-18 12:08:36,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 12:08:36,857 INFO L188 MainTranslator]: Completed pre-run [2019-08-18 12:08:37,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 12:08:37,056 INFO L192 MainTranslator]: Completed translation [2019-08-18 12:08:37,056 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:08:37 WrapperNode [2019-08-18 12:08:37,056 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-18 12:08:37,057 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-18 12:08:37,057 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-18 12:08:37,057 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-18 12:08:37,067 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:08:37" (1/1) ... [2019-08-18 12:08:37,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:08:37" (1/1) ... [2019-08-18 12:08:37,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:08:37" (1/1) ... [2019-08-18 12:08:37,086 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:08:37" (1/1) ... [2019-08-18 12:08:37,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:08:37" (1/1) ... [2019-08-18 12:08:37,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:08:37" (1/1) ... [2019-08-18 12:08:37,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:08:37" (1/1) ... [2019-08-18 12:08:37,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-18 12:08:37,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-18 12:08:37,159 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-18 12:08:37,159 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-18 12:08:37,160 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 12:08:37" (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 12:08:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-18 12:08:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-18 12:08:37,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-18 12:08:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-18 12:08:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-08-18 12:08:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-08-18 12:08:37,240 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-08-18 12:08:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-18 12:08:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-08-18 12:08:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-08-18 12:08:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-08-18 12:08:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-08-18 12:08:37,241 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-08-18 12:08:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-08-18 12:08:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-08-18 12:08:37,242 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-08-18 12:08:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-18 12:08:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-18 12:08:37,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-18 12:08:38,811 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-18 12:08:38,812 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-18 12:08:38,815 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:08:38 BoogieIcfgContainer [2019-08-18 12:08:38,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-18 12:08:38,816 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-18 12:08:38,816 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-18 12:08:38,817 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-18 12:08:38,818 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 12:08:38" (1/1) ... [2019-08-18 12:08:38,831 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-18 12:08:38,834 INFO L155 IcfgInterpreter]: Building call graph [2019-08-18 12:08:38,858 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-18 12:08:38,869 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-18 12:08:38,870 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-18 12:08:39,037 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-18 12:08:39,038 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-18 12:08:39,040 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-18 12:08:39,059 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 12:08:39,060 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 12:08:39,605 WARN L188 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2019-08-18 12:08:39,607 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 12:08:39,626 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 12:08:39,627 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 12:08:39,628 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 12:08:39,630 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 12:08:39,631 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 12:08:39,632 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 12:08:39,635 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 12:08:39,636 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-18 12:08:40,099 WARN L188 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-08-18 12:08:40,100 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 12:08:40,102 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-18 12:08:40,103 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:286, output treesize:296 [2019-08-18 12:08:40,156 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 344