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 --sifa.abstract.domain ExplicitValueDomain --rcfgbuilder.size.of.a.code.block SingleStatement --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/ldv-regression/test18.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-18 11:49:27,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-18 11:49:27,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-18 11:49:27,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-18 11:49:27,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-18 11:49:27,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-18 11:49:27,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-18 11:49:27,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-18 11:49:27,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-18 11:49:27,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-18 11:49:27,187 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-18 11:49:27,188 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-18 11:49:27,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-18 11:49:27,189 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-18 11:49:27,190 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-18 11:49:27,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-18 11:49:27,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-18 11:49:27,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-18 11:49:27,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-18 11:49:27,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-18 11:49:27,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-18 11:49:27,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-18 11:49:27,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-18 11:49:27,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-18 11:49:27,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-18 11:49:27,202 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-18 11:49:27,203 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-18 11:49:27,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-18 11:49:27,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-18 11:49:27,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-18 11:49:27,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-18 11:49:27,206 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-18 11:49:27,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-18 11:49:27,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-18 11:49:27,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-18 11:49:27,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-18 11:49:27,209 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-18 11:49:27,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-18 11:49:27,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-18 11:49:27,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-18 11:49:27,211 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-18 11:49:27,212 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 [2019-09-18 11:49:27,225 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-18 11:49:27,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-18 11:49:27,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-18 11:49:27,227 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-18 11:49:27,227 INFO L138 SettingsManager]: * Use SBE=true [2019-09-18 11:49:27,228 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-18 11:49:27,228 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-18 11:49:27,228 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-18 11:49:27,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-18 11:49:27,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-18 11:49:27,229 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-18 11:49:27,229 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-18 11:49:27,229 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-18 11:49:27,229 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-18 11:49:27,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-18 11:49:27,230 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-18 11:49:27,230 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-18 11:49:27,230 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-18 11:49:27,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-18 11:49:27,230 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-18 11:49:27,231 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-18 11:49:27,231 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-18 11:49:27,231 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-18 11:49:27,231 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-18 11:49:27,231 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-18 11:49:27,232 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-18 11:49:27,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-18 11:49:27,232 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-18 11:49:27,232 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> ExplicitValueDomain Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Call Summarizer -> TopInputCallSummarizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Intern Fluid -> SizeLimitFluid Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Simplification Technique -> SIMPLIFY_DDA [2019-09-18 11:49:27,263 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-18 11:49:27,279 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-18 11:49:27,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-18 11:49:27,285 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-18 11:49:27,287 INFO L275 PluginConnector]: CDTParser initialized [2019-09-18 11:49:27,288 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test18.c [2019-09-18 11:49:27,354 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d45e493/fe9cd593cccd4f7b83e8da2f02478123/FLAGb7eec9ab6 [2019-09-18 11:49:27,839 INFO L306 CDTParser]: Found 1 translation units. [2019-09-18 11:49:27,840 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test18.c [2019-09-18 11:49:27,845 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d45e493/fe9cd593cccd4f7b83e8da2f02478123/FLAGb7eec9ab6 [2019-09-18 11:49:28,260 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/77d45e493/fe9cd593cccd4f7b83e8da2f02478123 [2019-09-18 11:49:28,272 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-18 11:49:28,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-18 11:49:28,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-18 11:49:28,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-18 11:49:28,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-18 11:49:28,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:49:28" (1/1) ... [2019-09-18 11:49:28,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ab3a841 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:28, skipping insertion in model container [2019-09-18 11:49:28,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 11:49:28" (1/1) ... [2019-09-18 11:49:28,289 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-18 11:49:28,303 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-18 11:49:28,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 11:49:28,496 INFO L188 MainTranslator]: Completed pre-run [2019-09-18 11:49:28,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-18 11:49:28,527 INFO L192 MainTranslator]: Completed translation [2019-09-18 11:49:28,527 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:28 WrapperNode [2019-09-18 11:49:28,527 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-18 11:49:28,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-18 11:49:28,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-18 11:49:28,528 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-18 11:49:28,622 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:28" (1/1) ... [2019-09-18 11:49:28,622 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:28" (1/1) ... [2019-09-18 11:49:28,629 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:28" (1/1) ... [2019-09-18 11:49:28,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:28" (1/1) ... [2019-09-18 11:49:28,639 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:28" (1/1) ... [2019-09-18 11:49:28,642 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:28" (1/1) ... [2019-09-18 11:49:28,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:28" (1/1) ... [2019-09-18 11:49:28,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-18 11:49:28,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-18 11:49:28,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-18 11:49:28,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-18 11:49:28,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 11:49:28" (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 [2019-09-18 11:49:28,707 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-18 11:49:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-18 11:49:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-09-18 11:49:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-18 11:49:28,708 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-18 11:49:28,708 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-18 11:49:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-09-18 11:49:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-18 11:49:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-18 11:49:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-18 11:49:28,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-18 11:49:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-18 11:49:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-18 11:49:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-18 11:49:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-18 11:49:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-18 11:49:28,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-18 11:49:29,002 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-18 11:49:29,003 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-18 11:49:29,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:49:29 BoogieIcfgContainer [2019-09-18 11:49:29,012 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-18 11:49:29,013 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-18 11:49:29,013 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-18 11:49:29,013 INFO L275 PluginConnector]: Sifa initialized [2019-09-18 11:49:29,018 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 11:49:29" (1/1) ... [2019-09-18 11:49:29,018 INFO L79 SifaObserver]: Intern domains=ExplicitValueDomain;IntervalDomain ♦ Abstract Domain=ExplicitValueDomain ♦ Abstract when formula's dag size exceeds (negative numbers disable this limit)=-1 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ Abstract when formula has more disjuncts than (negative numbers disable this limit)=8 ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ Simplification Technique=SIMPLIFY_DDA ♦ Intern Fluid=SizeLimitFluid [2019-09-18 11:49:29,044 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-18 11:49:29,045 INFO L169 IcfgInterpreter]: Building call graph [2019-09-18 11:49:29,052 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-18 11:49:29,061 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-18 11:49:29,063 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-18 11:49:29,217 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2019-09-18 11:49:29,581 WARN L191 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2019-09-18 11:49:30,763 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-18 11:49:31,137 WARN L191 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-18 11:49:31,483 WARN L191 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-18 11:49:31,547 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-18 11:49:31,547 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-18 11:49:31,549 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 44#(exists ((v_prenex_2 Int) (|v_f_~#pb.base_7| Int) (v_prenex_1 Int) (|v_f_~#pa.base_8| Int)) (or (and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0)) 0)) (< |main_~#a~0.base| |#StackHeapBarrier|) (< |main_~#b~0.base| |#StackHeapBarrier|) (not (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0)) (= (select |#length| |v_f_~#pb.base_7|) 4) (= 0 (select |#valid| (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0))) (= 0 |#NULL.base|) (= 0 (select |#valid| |v_f_~#pb.base_7|)) (not (= |main_~#b~0.base| 0)) (not (= 0 |main_~#a~0.base|)) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (= (select (select |#memory_$Pointer$.offset| |v_f_~#pb.base_7|) 0) 0) (= 0 (select |old(#valid)| 0)) (= 4 (select |#length| (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0))) (= (select (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base|) 0) (< (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0) |#StackHeapBarrier|) (not (= (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0) 0)) (= |main_~#b~0.offset| 0) (not (= |v_f_~#pb.base_7| 0)) (< |v_f_~#pb.base_7| |#StackHeapBarrier|) (not (= |v_f_~#pb.base_7| (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0))) (= |#NULL.offset| 0) (= |main_~#a~0.offset| 0)) (and (< |main_~#a~0.base| |#StackHeapBarrier|) (< |main_~#b~0.base| |#StackHeapBarrier|) (not (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0)) (= 4 (select |#length| v_prenex_1)) (= 0 |#NULL.base|) (not (= 0 v_prenex_1)) (= (select (select |#memory_$Pointer$.base| v_prenex_2) 0) (select (select |#memory_$Pointer$.base| v_prenex_1) 0)) (not (= |main_~#b~0.base| 0)) (= 0 (select |#valid| v_prenex_1)) (not (= 0 |main_~#a~0.base|)) (= 0 (select |#valid| v_prenex_2)) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (= (select |#length| v_prenex_2) 4) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| v_prenex_2) 0)) (select (select |#memory_$Pointer$.offset| v_prenex_1) 0))) (= 0 (select |old(#valid)| 0)) (= (select (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base|) 0) (< v_prenex_2 |#StackHeapBarrier|) (= |main_~#b~0.offset| 0) (< v_prenex_1 |#StackHeapBarrier|) (not (= v_prenex_2 0)) (= |#NULL.offset| 0) (= (select (select |#memory_$Pointer$.offset| v_prenex_2) 0) (select (select |#memory_$Pointer$.offset| v_prenex_1) 0)) (not (= v_prenex_2 v_prenex_1)) (= |main_~#a~0.offset| 0)) (and (= 0 (select (select |#memory_$Pointer$.offset| |v_f_~#pa.base_8|) 0)) (< |main_~#a~0.base| |#StackHeapBarrier|) (< |main_~#b~0.base| |#StackHeapBarrier|) (not (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0)) (select (select |#memory_$Pointer$.offset| |v_f_~#pa.base_8|) 0))) (= 4 (select |#length| |v_f_~#pa.base_8|)) (= 0 |#NULL.base|) (< (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0) |#StackHeapBarrier|) (not (= |main_~#b~0.base| 0)) (= 4 (select |#length| (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0))) (not (= 0 |main_~#a~0.base|)) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (not (= 0 |v_f_~#pa.base_8|)) (= 0 (select |old(#valid)| 0)) (= (select (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base|) 0) (not (= (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0) 0)) (= 0 (select |#valid| (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0))) (= |main_~#b~0.offset| 0) (= 0 (select |#valid| |v_f_~#pa.base_8|)) (< |v_f_~#pa.base_8| |#StackHeapBarrier|) (not (= (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0) |v_f_~#pa.base_8|)) (= |#NULL.offset| 0) (= |main_~#a~0.offset| 0)))) [2019-09-18 11:49:31,565 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-18 11:49:31,565 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-18 11:49:31,567 INFO L168 Benchmark]: Toolchain (without parser) took 3293.27 ms. Allocated memory was 133.2 MB in the beginning and 262.1 MB in the end (delta: 129.0 MB). Free memory was 88.7 MB in the beginning and 156.0 MB in the end (delta: -67.3 MB). Peak memory consumption was 61.7 MB. Max. memory is 7.1 GB. [2019-09-18 11:49:31,568 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-18 11:49:31,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.45 ms. Allocated memory is still 133.2 MB. Free memory was 88.5 MB in the beginning and 78.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-09-18 11:49:31,570 INFO L168 Benchmark]: Boogie Preprocessor took 117.82 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 78.9 MB in the beginning and 175.3 MB in the end (delta: -96.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. [2019-09-18 11:49:31,573 INFO L168 Benchmark]: RCFGBuilder took 366.19 ms. Allocated memory is still 199.8 MB. Free memory was 175.3 MB in the beginning and 157.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2019-09-18 11:49:31,574 INFO L168 Benchmark]: Sifa took 2552.48 ms. Allocated memory was 199.8 MB in the beginning and 262.1 MB in the end (delta: 62.4 MB). Free memory was 157.7 MB in the beginning and 156.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. [2019-09-18 11:49:31,583 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 133.2 MB. Free memory was 107.4 MB in the beginning and 107.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 253.45 ms. Allocated memory is still 133.2 MB. Free memory was 88.5 MB in the beginning and 78.9 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.82 ms. Allocated memory was 133.2 MB in the beginning and 199.8 MB in the end (delta: 66.6 MB). Free memory was 78.9 MB in the beginning and 175.3 MB in the end (delta: -96.3 MB). Peak memory consumption was 15.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 366.19 ms. Allocated memory is still 199.8 MB. Free memory was 175.3 MB in the beginning and 157.7 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * Sifa took 2552.48 ms. Allocated memory was 199.8 MB in the beginning and 262.1 MB in the end (delta: 62.4 MB). Free memory was 157.7 MB in the beginning and 156.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 64.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME[ms]: 2505, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 31, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 27, TOOLS_POST_TIME[ms]: 1851, TOOLS_POST_CALL_APPLICATIONS: 4, TOOLS_POST_CALL_TIME[ms]: 385, TOOLS_POST_RETURN_APPLICATIONS: 3, TOOLS_POST_RETURN_TIME[ms]: 105, TOOLS_QUANTIFIERELIM_APPLICATIONS: 34, TOOLS_QUANTIFIERELIM_TIME[ms]: 2312, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 400, FLUID_QUERY_TIME[ms]: 5, FLUID_QUERIES: 31, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME[ms]: 83, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME[ms]: 0, DOMAIN_WIDEN_APPLICATIONS: 0, DOMAIN_WIDEN_TIME[ms]: 0, DOMAIN_ISSUBSETEQ_APPLICATIONS: 0, DOMAIN_ISSUBSETEQ_TIME[ms]: 0, DOMAIN_ISBOTTOM_APPLICATIONS: 0, DOMAIN_ISBOTTOM_TIME[ms]: 0, LOOP_SUMMARIZER_APPLICATIONS: 0, LOOP_SUMMARIZER_CACHE_MISSES: 0, LOOP_SUMMARIZER_OVERALL_TIME[ms]: 0, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 0, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 0, CALL_SUMMARIZER_APPLICATIONS: 3, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME[ms]: 2018, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2017, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 4, PATH_EXPR_TIME[ms]: 7, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 18, DAG_COMPRESSION_PROCESSED_NODES: 76, DAG_COMPRESSION_RETAINED_NODES: 56 - UnprovableResult [Line: 22]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 44#(exists ((v_prenex_2 Int) (|v_f_~#pb.base_7| Int) (v_prenex_1 Int) (|v_f_~#pa.base_8| Int)) (or (and (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0)) 0)) (< |main_~#a~0.base| |#StackHeapBarrier|) (< |main_~#b~0.base| |#StackHeapBarrier|) (not (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0)) (= (select |#length| |v_f_~#pb.base_7|) 4) (= 0 (select |#valid| (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0))) (= 0 |#NULL.base|) (= 0 (select |#valid| |v_f_~#pb.base_7|)) (not (= |main_~#b~0.base| 0)) (not (= 0 |main_~#a~0.base|)) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (= (select (select |#memory_$Pointer$.offset| |v_f_~#pb.base_7|) 0) 0) (= 0 (select |old(#valid)| 0)) (= 4 (select |#length| (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0))) (= (select (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base|) 0) (< (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0) |#StackHeapBarrier|) (not (= (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0) 0)) (= |main_~#b~0.offset| 0) (not (= |v_f_~#pb.base_7| 0)) (< |v_f_~#pb.base_7| |#StackHeapBarrier|) (not (= |v_f_~#pb.base_7| (select (select |#memory_$Pointer$.base| |v_f_~#pb.base_7|) 0))) (= |#NULL.offset| 0) (= |main_~#a~0.offset| 0)) (and (< |main_~#a~0.base| |#StackHeapBarrier|) (< |main_~#b~0.base| |#StackHeapBarrier|) (not (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0)) (= 4 (select |#length| v_prenex_1)) (= 0 |#NULL.base|) (not (= 0 v_prenex_1)) (= (select (select |#memory_$Pointer$.base| v_prenex_2) 0) (select (select |#memory_$Pointer$.base| v_prenex_1) 0)) (not (= |main_~#b~0.base| 0)) (= 0 (select |#valid| v_prenex_1)) (not (= 0 |main_~#a~0.base|)) (= 0 (select |#valid| v_prenex_2)) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (= (select |#length| v_prenex_2) 4) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| v_prenex_2) 0)) (select (select |#memory_$Pointer$.offset| v_prenex_1) 0))) (= 0 (select |old(#valid)| 0)) (= (select (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base|) 0) (< v_prenex_2 |#StackHeapBarrier|) (= |main_~#b~0.offset| 0) (< v_prenex_1 |#StackHeapBarrier|) (not (= v_prenex_2 0)) (= |#NULL.offset| 0) (= (select (select |#memory_$Pointer$.offset| v_prenex_2) 0) (select (select |#memory_$Pointer$.offset| v_prenex_1) 0)) (not (= v_prenex_2 v_prenex_1)) (= |main_~#a~0.offset| 0)) (and (= 0 (select (select |#memory_$Pointer$.offset| |v_f_~#pa.base_8|) 0)) (< |main_~#a~0.base| |#StackHeapBarrier|) (< |main_~#b~0.base| |#StackHeapBarrier|) (not (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) 0)) (= 0 (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0)) (select (select |#memory_$Pointer$.offset| |v_f_~#pa.base_8|) 0))) (= 4 (select |#length| |v_f_~#pa.base_8|)) (= 0 |#NULL.base|) (< (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0) |#StackHeapBarrier|) (not (= |main_~#b~0.base| 0)) (= 4 (select |#length| (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0))) (not (= 0 |main_~#a~0.base|)) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (not (= 0 |v_f_~#pa.base_8|)) (= 0 (select |old(#valid)| 0)) (= (select (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base|) 0) (not (= (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0) 0)) (= 0 (select |#valid| (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0))) (= |main_~#b~0.offset| 0) (= 0 (select |#valid| |v_f_~#pa.base_8|)) (< |v_f_~#pa.base_8| |#StackHeapBarrier|) (not (= (select (select |#memory_$Pointer$.base| |v_f_~#pa.base_8|) 0) |v_f_~#pa.base_8|)) (= |#NULL.offset| 0) (= |main_~#a~0.offset| 0)))). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...