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.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-09-01 00:43:07,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-01 00:43:07,076 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-01 00:43:07,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-01 00:43:07,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-01 00:43:07,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-01 00:43:07,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-01 00:43:07,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-01 00:43:07,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-01 00:43:07,096 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-01 00:43:07,097 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-01 00:43:07,098 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-01 00:43:07,098 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-01 00:43:07,101 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-01 00:43:07,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-01 00:43:07,104 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-01 00:43:07,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-01 00:43:07,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-01 00:43:07,107 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-01 00:43:07,109 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-01 00:43:07,110 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-01 00:43:07,111 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-01 00:43:07,113 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-01 00:43:07,113 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-01 00:43:07,115 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-01 00:43:07,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-01 00:43:07,124 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-01 00:43:07,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-01 00:43:07,127 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 [2019-09-01 00:43:07,155 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-01 00:43:07,155 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-01 00:43:07,159 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-01 00:43:07,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-01 00:43:07,160 INFO L138 SettingsManager]: * Use SBE=true [2019-09-01 00:43:07,160 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-01 00:43:07,160 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-01 00:43:07,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-01 00:43:07,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-01 00:43:07,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-01 00:43:07,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-01 00:43:07,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-01 00:43:07,162 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-01 00:43:07,163 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-01 00:43:07,163 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-01 00:43:07,163 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-01 00:43:07,163 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-01 00:43:07,164 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-01 00:43:07,164 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-01 00:43:07,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-01 00:43:07,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-01 00:43:07,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-01 00:43:07,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-01 00:43:07,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-01 00:43:07,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-01 00:43:07,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-01 00:43:07,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-01 00:43:07,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-01 00:43:07,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-01 00:43:07,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-01 00:43:07,217 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-01 00:43:07,223 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-01 00:43:07,225 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-01 00:43:07,225 INFO L275 PluginConnector]: CDTParser initialized [2019-09-01 00:43:07,226 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-09-01 00:43:07,303 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2b2d5617/40583c3a88624fc48a36e404b2a55d12/FLAG94baa0d86 [2019-09-01 00:43:08,006 INFO L306 CDTParser]: Found 1 translation units. [2019-09-01 00:43:08,007 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_opt-floodmax.4.2.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-09-01 00:43:08,029 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2b2d5617/40583c3a88624fc48a36e404b2a55d12/FLAG94baa0d86 [2019-09-01 00:43:08,184 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2b2d5617/40583c3a88624fc48a36e404b2a55d12 [2019-09-01 00:43:08,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-01 00:43:08,200 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-01 00:43:08,201 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-01 00:43:08,201 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-01 00:43:08,205 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-01 00:43:08,206 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:43:08" (1/1) ... [2019-09-01 00:43:08,209 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a35a2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:43:08, skipping insertion in model container [2019-09-01 00:43:08,210 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.09 12:43:08" (1/1) ... [2019-09-01 00:43:08,218 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-01 00:43:08,286 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-01 00:43:08,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-01 00:43:08,816 INFO L188 MainTranslator]: Completed pre-run [2019-09-01 00:43:09,019 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-01 00:43:09,056 INFO L192 MainTranslator]: Completed translation [2019-09-01 00:43:09,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:43:09 WrapperNode [2019-09-01 00:43:09,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-01 00:43:09,059 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-01 00:43:09,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-01 00:43:09,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-01 00:43:09,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:43:09" (1/1) ... [2019-09-01 00:43:09,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:43:09" (1/1) ... [2019-09-01 00:43:09,126 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:43:09" (1/1) ... [2019-09-01 00:43:09,127 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:43:09" (1/1) ... [2019-09-01 00:43:09,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:43:09" (1/1) ... [2019-09-01 00:43:09,213 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:43:09" (1/1) ... [2019-09-01 00:43:09,223 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:43:09" (1/1) ... [2019-09-01 00:43:09,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-01 00:43:09,233 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-01 00:43:09,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-01 00:43:09,234 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-01 00:43:09,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.09 12:43:09" (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 [2019-09-01 00:43:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-01 00:43:09,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-01 00:43:09,320 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-01 00:43:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-01 00:43:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-01 00:43:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-01 00:43:09,320 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-01 00:43:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-01 00:43:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-01 00:43:09,321 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-01 00:43:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-01 00:43:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-01 00:43:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-01 00:43:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-01 00:43:09,322 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-01 00:43:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-01 00:43:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-01 00:43:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-01 00:43:09,323 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-01 00:43:10,796 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-01 00:43:10,797 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-01 00:43:10,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:43:10 BoogieIcfgContainer [2019-09-01 00:43:10,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-01 00:43:10,799 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-01 00:43:10,799 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-01 00:43:10,799 INFO L275 PluginConnector]: Sifa initialized [2019-09-01 00:43:10,801 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.09 12:43:10" (1/1) ... [2019-09-01 00:43:10,853 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-01 00:43:10,854 INFO L169 IcfgInterpreter]: Building call graph [2019-09-01 00:43:10,875 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-01 00:43:10,890 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-01 00:43:10,892 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-01 00:43:11,153 INFO L172 IndexEqualityManager]: detected equality via solver [2019-09-01 00:43:11,154 INFO L172 IndexEqualityManager]: detected equality via solver [2019-09-01 00:43:11,156 INFO L172 IndexEqualityManager]: detected equality via solver [2019-09-01 00:43:11,170 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 [2019-09-01 00:43:11,171 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-01 00:43:11,707 WARN L188 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2019-09-01 00:43:11,708 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-01 00:43:11,726 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-01 00:43:11,727 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-01 00:43:11,728 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-01 00:43:11,729 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-01 00:43:11,730 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-01 00:43:11,731 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-01 00:43:11,734 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 [2019-09-01 00:43:11,734 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-01 00:43:12,211 WARN L188 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2019-09-01 00:43:12,212 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-01 00:43:12,213 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-09-01 00:43:12,213 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:286, output treesize:296 [2019-09-01 00:43:12,276 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 447 for LOIs