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/reducercommutativity/avg.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-29 23:52:52,606 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-29 23:52:52,608 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-29 23:52:52,620 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-29 23:52:52,620 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-29 23:52:52,621 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-29 23:52:52,623 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-29 23:52:52,634 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-29 23:52:52,636 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-29 23:52:52,637 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-29 23:52:52,637 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-29 23:52:52,638 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-29 23:52:52,639 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-29 23:52:52,640 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-29 23:52:52,640 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-29 23:52:52,642 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-29 23:52:52,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-29 23:52:52,643 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-29 23:52:52,645 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-29 23:52:52,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-29 23:52:52,648 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-29 23:52:52,649 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-29 23:52:52,650 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-29 23:52:52,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-29 23:52:52,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-29 23:52:52,659 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-29 23:52:52,660 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-29 23:52:52,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-29 23:52:52,664 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 [2019-08-29 23:52:52,690 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-29 23:52:52,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-29 23:52:52,695 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-29 23:52:52,695 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-29 23:52:52,696 INFO L138 SettingsManager]: * Use SBE=true [2019-08-29 23:52:52,696 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-29 23:52:52,696 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-29 23:52:52,696 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-29 23:52:52,696 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-29 23:52:52,697 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-29 23:52:52,697 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-29 23:52:52,698 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-29 23:52:52,698 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-29 23:52:52,698 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-29 23:52:52,698 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-29 23:52:52,699 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-29 23:52:52,699 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-29 23:52:52,699 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-29 23:52:52,699 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-29 23:52:52,699 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-29 23:52:52,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-29 23:52:52,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-29 23:52:52,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-29 23:52:52,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-29 23:52:52,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-29 23:52:52,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-29 23:52:52,702 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-29 23:52:52,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-29 23:52:52,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-29 23:52:52,754 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-29 23:52:52,771 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-29 23:52:52,774 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-29 23:52:52,776 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-29 23:52:52,776 INFO L275 PluginConnector]: CDTParser initialized [2019-08-29 23:52:52,777 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/reducercommutativity/avg.i [2019-08-29 23:52:52,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e70ccad/cda4c4a235a9456f9f947ddd47eabd26/FLAG0255db27d [2019-08-29 23:52:53,287 INFO L306 CDTParser]: Found 1 translation units. [2019-08-29 23:52:53,288 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/reducercommutativity/avg.i [2019-08-29 23:52:53,295 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e70ccad/cda4c4a235a9456f9f947ddd47eabd26/FLAG0255db27d [2019-08-29 23:52:53,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/02e70ccad/cda4c4a235a9456f9f947ddd47eabd26 [2019-08-29 23:52:53,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-29 23:52:53,683 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-29 23:52:53,684 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-29 23:52:53,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-29 23:52:53,688 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-29 23:52:53,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 11:52:53" (1/1) ... [2019-08-29 23:52:53,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72309706 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:52:53, skipping insertion in model container [2019-08-29 23:52:53,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 11:52:53" (1/1) ... [2019-08-29 23:52:53,700 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-29 23:52:53,717 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-29 23:52:53,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-29 23:52:53,898 INFO L188 MainTranslator]: Completed pre-run [2019-08-29 23:52:53,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-29 23:52:54,036 INFO L192 MainTranslator]: Completed translation [2019-08-29 23:52:54,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:52:54 WrapperNode [2019-08-29 23:52:54,037 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-29 23:52:54,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-29 23:52:54,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-29 23:52:54,038 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-29 23:52:54,047 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:52:54" (1/1) ... [2019-08-29 23:52:54,047 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:52:54" (1/1) ... [2019-08-29 23:52:54,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:52:54" (1/1) ... [2019-08-29 23:52:54,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:52:54" (1/1) ... [2019-08-29 23:52:54,065 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:52:54" (1/1) ... [2019-08-29 23:52:54,070 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:52:54" (1/1) ... [2019-08-29 23:52:54,071 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:52:54" (1/1) ... [2019-08-29 23:52:54,073 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-29 23:52:54,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-29 23:52:54,074 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-29 23:52:54,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-29 23:52:54,075 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 11:52:54" (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 [2019-08-29 23:52:54,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-29 23:52:54,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-29 23:52:54,130 INFO L138 BoogieDeclarations]: Found implementation of procedure avg [2019-08-29 23:52:54,130 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-29 23:52:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-29 23:52:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-29 23:52:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure avg [2019-08-29 23:52:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-29 23:52:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-29 23:52:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-29 23:52:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-29 23:52:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-29 23:52:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-29 23:52:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-29 23:52:54,434 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-29 23:52:54,435 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-08-29 23:52:54,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 11:52:54 BoogieIcfgContainer [2019-08-29 23:52:54,436 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-29 23:52:54,437 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-29 23:52:54,437 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-29 23:52:54,437 INFO L275 PluginConnector]: Sifa initialized [2019-08-29 23:52:54,438 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 11:52:54" (1/1) ... [2019-08-29 23:52:54,474 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-29 23:52:54,474 INFO L169 IcfgInterpreter]: Building call graph [2019-08-29 23:52:54,482 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-29 23:52:54,490 INFO L179 IcfgInterpreter]: Starting interpretation [2019-08-29 23:52:54,493 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-08-29 23:52:54,581 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2019-08-29 23:52:54,581 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-29 23:52:54,614 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-29 23:52:54,615 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-29 23:52:54,615 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2019-08-29 23:52:54,632 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 27 for LOIs [2019-08-29 23:52:54,668 INFO L392 ElimStorePlain]: Different costs {0=[|v_old(#length)_BEFORE_CALL_1|], 3=[|v_old(#valid)_BEFORE_CALL_1|]} [2019-08-29 23:52:54,689 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2019-08-29 23:52:54,689 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-29 23:52:54,782 INFO L567 ElimStorePlain]: treesize reduction 14, result has 77.8 percent of original size [2019-08-29 23:52:54,792 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 17 [2019-08-29 23:52:54,793 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-29 23:52:54,865 INFO L567 ElimStorePlain]: treesize reduction 4, result has 90.7 percent of original size [2019-08-29 23:52:54,866 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-29 23:52:54,867 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:64, output treesize:39 [2019-08-30 00:05:35,849 WARN L177 XnfTransformerHelper]: Simplifying disjunction of 5860 conjuctions. This might take some time... [2019-08-30 00:05:38,687 INFO L193 XnfTransformerHelper]: Simplified to disjunction of 5860 conjuctions.