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.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-a32b1f7 [2019-08-18 10:38:50,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-18 10:38:50,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-18 10:38:50,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-18 10:38:50,106 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-18 10:38:50,108 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-18 10:38:50,109 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-18 10:38:50,111 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-18 10:38:50,112 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-18 10:38:50,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-18 10:38:50,114 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-18 10:38:50,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-18 10:38:50,116 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-18 10:38:50,116 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-18 10:38:50,117 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-18 10:38:50,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-18 10:38:50,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-18 10:38:50,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-18 10:38:50,122 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-18 10:38:50,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-18 10:38:50,126 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-18 10:38:50,127 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-18 10:38:50,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-18 10:38:50,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-18 10:38:50,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-18 10:38:50,134 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-18 10:38:50,135 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-18 10:38:50,135 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-18 10:38:50,136 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-18 10:38:50,137 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-18 10:38:50,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-18 10:38:50,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-18 10:38:50,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-18 10:38:50,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-18 10:38:50,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-18 10:38:50,140 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-18 10:38:50,141 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-18 10:38:50,141 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-18 10:38:50,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-18 10:38:50,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-18 10:38:50,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-18 10:38:50,144 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 10:38:50,162 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-18 10:38:50,163 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-18 10:38:50,164 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-18 10:38:50,164 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-18 10:38:50,164 INFO L138 SettingsManager]: * Use SBE=true [2019-08-18 10:38:50,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-18 10:38:50,165 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-18 10:38:50,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-18 10:38:50,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-18 10:38:50,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-18 10:38:50,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-18 10:38:50,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-18 10:38:50,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-18 10:38:50,166 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-18 10:38:50,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-18 10:38:50,167 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-18 10:38:50,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-18 10:38:50,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-18 10:38:50,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-18 10:38:50,167 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-18 10:38:50,168 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-18 10:38:50,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-18 10:38:50,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-18 10:38:50,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-18 10:38:50,169 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-18 10:38:50,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-18 10:38:50,169 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-18 10:38:50,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-18 10:38:50,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-18 10:38:50,220 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-18 10:38:50,235 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-18 10:38:50,239 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-18 10:38:50,241 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-18 10:38:50,241 INFO L275 PluginConnector]: CDTParser initialized [2019-08-18 10:38:50,242 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2019-08-18 10:38:50,305 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a71e2f48/b4954acadf2a4a4a8107feadb86af066/FLAG19581f853 [2019-08-18 10:38:50,923 INFO L306 CDTParser]: Found 1 translation units. [2019-08-18 10:38:50,924 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_floodmax.4.3.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2019-08-18 10:38:50,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a71e2f48/b4954acadf2a4a4a8107feadb86af066/FLAG19581f853 [2019-08-18 10:38:51,134 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a71e2f48/b4954acadf2a4a4a8107feadb86af066 [2019-08-18 10:38:51,144 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-18 10:38:51,145 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-18 10:38:51,146 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-18 10:38:51,146 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-18 10:38:51,150 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-18 10:38:51,151 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:38:51" (1/1) ... [2019-08-18 10:38:51,154 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c5f767a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:38:51, skipping insertion in model container [2019-08-18 10:38:51,154 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.08 10:38:51" (1/1) ... [2019-08-18 10:38:51,161 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-18 10:38:51,264 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-18 10:38:52,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 10:38:52,285 INFO L188 MainTranslator]: Completed pre-run [2019-08-18 10:38:52,704 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-18 10:38:52,726 INFO L192 MainTranslator]: Completed translation [2019-08-18 10:38:52,726 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:38:52 WrapperNode [2019-08-18 10:38:52,727 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-18 10:38:52,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-18 10:38:52,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-18 10:38:52,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-18 10:38:52,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:38:52" (1/1) ... [2019-08-18 10:38:52,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:38:52" (1/1) ... [2019-08-18 10:38:52,766 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:38:52" (1/1) ... [2019-08-18 10:38:52,766 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:38:52" (1/1) ... [2019-08-18 10:38:52,821 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:38:52" (1/1) ... [2019-08-18 10:38:52,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:38:52" (1/1) ... [2019-08-18 10:38:52,862 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:38:52" (1/1) ... [2019-08-18 10:38:52,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-18 10:38:52,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-18 10:38:52,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-18 10:38:52,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-18 10:38:52,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.08 10:38:52" (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 10:38:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-18 10:38:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-18 10:38:52,947 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-18 10:38:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-18 10:38:52,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-08-18 10:38:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-08-18 10:38:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-08-18 10:38:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-08-18 10:38:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-08-18 10:38:52,949 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-08-18 10:38:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-08-18 10:38:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-08-18 10:38:52,950 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-08-18 10:38:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-08-18 10:38:52,951 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-08-18 10:38:52,952 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-08-18 10:38:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-18 10:38:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-18 10:38:52,954 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-18 10:38:55,715 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-18 10:38:55,715 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-18 10:38:55,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:38:55 BoogieIcfgContainer [2019-08-18 10:38:55,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-18 10:38:55,717 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-18 10:38:55,718 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-18 10:38:55,718 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-18 10:38:55,719 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.08 10:38:55" (1/1) ... [2019-08-18 10:38:55,740 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-18 10:38:55,745 INFO L155 IcfgInterpreter]: Building call graph [2019-08-18 10:38:55,760 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-18 10:38:55,769 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-18 10:38:55,771 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-18 10:38:55,900 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-18 10:38:55,900 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-18 10:38:55,901 INFO L172 IndexEqualityManager]: detected equality via solver [2019-08-18 10:38:55,914 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 10:38:55,915 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-18 10:38:56,450 WARN L188 SmtUtils]: Spent 531.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2019-08-18 10:38:56,451 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 10:38:56,473 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:38:56,475 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:38:56,476 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:38:56,477 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:38:56,478 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:38:56,479 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-18 10:38:56,481 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 10:38:56,482 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-18 10:38:56,972 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2019-08-18 10:38:56,973 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-18 10:38:56,974 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-18 10:38:56,974 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:295, output treesize:305 [2019-08-18 10:38:57,061 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 356