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 SequenceOfStatements --sifa.call.summarizer TopInputCallSummarizer --sifa.fluid SizeLimitFluid --sifa.intern.fluid SizeLimitFluid --sifa.simplification.technique SIMPLIFY_DDA -i ../../../trunk/examples/svcomp/ldv-regression/test19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 18:28:05,210 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 18:28:05,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 18:28:05,224 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 18:28:05,224 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 18:28:05,226 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 18:28:05,227 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 18:28:05,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 18:28:05,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 18:28:05,232 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 18:28:05,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 18:28:05,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 18:28:05,235 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 18:28:05,236 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 18:28:05,237 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 18:28:05,238 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 18:28:05,239 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 18:28:05,240 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 18:28:05,242 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 18:28:05,244 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 18:28:05,245 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 18:28:05,246 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 18:28:05,248 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 18:28:05,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 18:28:05,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 18:28:05,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 18:28:05,251 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 18:28:05,252 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 18:28:05,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 18:28:05,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 18:28:05,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 18:28:05,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 18:28:05,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 18:28:05,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 18:28:05,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 18:28:05,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 18:28:05,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 18:28:05,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 18:28:05,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 18:28:05,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 18:28:05,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 18:28:05,261 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 [2019-09-20 18:28:05,276 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 18:28:05,276 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 18:28:05,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 18:28:05,278 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 18:28:05,278 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 18:28:05,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 18:28:05,278 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 18:28:05,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 18:28:05,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 18:28:05,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 18:28:05,279 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 18:28:05,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 18:28:05,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 18:28:05,280 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 18:28:05,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 18:28:05,280 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 18:28:05,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 18:28:05,280 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 18:28:05,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 18:28:05,281 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 18:28:05,281 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 18:28:05,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 18:28:05,282 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 18:28:05,282 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 18:28:05,282 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 18:28:05,282 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 18:28:05,282 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 18:28:05,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 18:28:05,283 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 -> SequenceOfStatements 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 [2019-09-20 18:28:05,326 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 18:28:05,344 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 18:28:05,350 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 18:28:05,352 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 18:28:05,352 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 18:28:05,353 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test19.c [2019-09-20 18:28:05,417 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945298eb9/b159a7c2ad8b429abc6fcdca4c3e5508/FLAGcfa552ac8 [2019-09-20 18:28:05,857 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 18:28:05,859 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test19.c [2019-09-20 18:28:05,865 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945298eb9/b159a7c2ad8b429abc6fcdca4c3e5508/FLAGcfa552ac8 [2019-09-20 18:28:06,249 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/945298eb9/b159a7c2ad8b429abc6fcdca4c3e5508 [2019-09-20 18:28:06,260 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 18:28:06,262 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 18:28:06,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 18:28:06,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 18:28:06,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 18:28:06,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:28:06" (1/1) ... [2019-09-20 18:28:06,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38a6592a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:28:06, skipping insertion in model container [2019-09-20 18:28:06,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 06:28:06" (1/1) ... [2019-09-20 18:28:06,280 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 18:28:06,297 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 18:28:06,523 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:28:06,535 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 18:28:06,557 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 18:28:06,574 INFO L192 MainTranslator]: Completed translation [2019-09-20 18:28:06,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:28:06 WrapperNode [2019-09-20 18:28:06,575 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 18:28:06,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 18:28:06,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 18:28:06,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 18:28:06,675 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:28:06" (1/1) ... [2019-09-20 18:28:06,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:28:06" (1/1) ... [2019-09-20 18:28:06,687 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:28:06" (1/1) ... [2019-09-20 18:28:06,689 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:28:06" (1/1) ... [2019-09-20 18:28:06,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:28:06" (1/1) ... [2019-09-20 18:28:06,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:28:06" (1/1) ... [2019-09-20 18:28:06,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:28:06" (1/1) ... [2019-09-20 18:28:06,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 18:28:06,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 18:28:06,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 18:28:06,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 18:28:06,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 06:28:06" (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 [2019-09-20 18:28:06,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 18:28:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 18:28:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure assign [2019-09-20 18:28:06,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 18:28:06,777 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 18:28:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 18:28:06,778 INFO L130 BoogieDeclarations]: Found specification of procedure assign [2019-09-20 18:28:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 18:28:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 18:28:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 18:28:06,779 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 18:28:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 18:28:06,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 18:28:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2019-09-20 18:28:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 18:28:06,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 18:28:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 18:28:06,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 18:28:07,040 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 18:28:07,040 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 18:28:07,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:28:07 BoogieIcfgContainer [2019-09-20 18:28:07,042 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 18:28:07,043 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 18:28:07,043 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 18:28:07,043 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 18:28:07,044 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 06:28:07" (1/1) ... [2019-09-20 18:28:07,045 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 [2019-09-20 18:28:07,088 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 18:28:07,089 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 18:28:07,108 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 18:28:07,131 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 18:28:07,132 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 18:28:07,309 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2019-09-20 18:28:07,625 WARN L191 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2019-09-20 18:28:07,850 WARN L191 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-20 18:28:08,167 WARN L191 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-20 18:28:08,522 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 6 [2019-09-20 18:28:08,693 WARN L191 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-09-20 18:28:08,827 WARN L191 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2019-09-20 18:28:08,827 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 18:28:08,827 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 18:28:08,829 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 34#(and (< |main_~#a~0.base| |#StackHeapBarrier|) (= 0 |main_~#pb~1.offset|) (= |#length| (store (store (store (store |old(#length)| |main_~#a~0.base| 4) |main_~#b~0.base| 4) |main_~#pa~1.base| 4) |main_~#pb~1.base| 4)) (= 0 |#NULL.base|) (< |main_~#pa~1.base| |#StackHeapBarrier|) (not (= |main_~#b~0.base| 0)) (not (= 0 |main_~#a~0.base|)) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (= (select (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base|) 0) (not (= 0 |main_~#pa~1.base|)) (<= (select (select |old(#memory_int)| |main_~#a~0.base|) |main_~#a~0.offset|) 2147483647) (= |main_~#b~0.offset| 0) (= (select (store (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base| 1) |main_~#pb~1.base|) 0) (< |main_~#pb~1.base| |#StackHeapBarrier|) (= |main_~#a~0.offset| 0) (< |main_~#b~0.base| |#StackHeapBarrier|) (= |main_~#a~0.offset| (select (select |old(#memory_$Pointer$.offset)| |main_~#pa~1.base|) |main_~#pa~1.offset|)) (not (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))) (= (store (store (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base| 1) |main_~#pb~1.base| 1) |#valid|) (= (select (select |old(#memory_$Pointer$.base)| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.base|) (= (select (select |old(#memory_$Pointer$.base)| |main_~#pb~1.base|) |main_~#pb~1.offset|) |main_~#b~0.base|) (<= 0 (+ (select (select |old(#memory_int)| |main_~#b~0.base|) |main_~#b~0.offset|) 2147483648)) (= 0 (select |old(#valid)| 0)) (<= 0 (+ (select (select |old(#memory_int)| |main_~#a~0.base|) |main_~#a~0.offset|) 2147483648)) (= (select (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base|) 0) (<= (select (select |old(#memory_int)| |main_~#b~0.base|) |main_~#b~0.offset|) 2147483647) (not (= |main_~#pb~1.base| 0)) (= |#NULL.offset| 0) (= |main_~#b~0.offset| (select (select |old(#memory_$Pointer$.offset)| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= 0 |main_~#pa~1.offset|)) [2019-09-20 18:28:08,845 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 18:28:08,845 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 18:28:08,847 INFO L168 Benchmark]: Toolchain (without parser) took 2585.17 ms. Allocated memory was 131.6 MB in the beginning and 220.7 MB in the end (delta: 89.1 MB). Free memory was 87.2 MB in the beginning and 99.3 MB in the end (delta: -12.1 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. [2019-09-20 18:28:08,848 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 18:28:08,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.75 ms. Allocated memory is still 131.6 MB. Free memory was 87.0 MB in the beginning and 77.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-09-20 18:28:08,850 INFO L168 Benchmark]: Boogie Preprocessor took 141.46 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 77.2 MB in the beginning and 174.3 MB in the end (delta: -97.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. [2019-09-20 18:28:08,851 INFO L168 Benchmark]: RCFGBuilder took 325.38 ms. Allocated memory is still 198.7 MB. Free memory was 174.3 MB in the beginning and 158.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. [2019-09-20 18:28:08,852 INFO L168 Benchmark]: Sifa took 1802.74 ms. Allocated memory was 198.7 MB in the beginning and 220.7 MB in the end (delta: 22.0 MB). Free memory was 158.9 MB in the beginning and 99.3 MB in the end (delta: 59.6 MB). Peak memory consumption was 81.7 MB. Max. memory is 7.1 GB. [2019-09-20 18:28:08,855 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 131.6 MB. Free memory was 105.9 MB in the beginning and 105.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 311.75 ms. Allocated memory is still 131.6 MB. Free memory was 87.0 MB in the beginning and 77.2 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 141.46 ms. Allocated memory was 131.6 MB in the beginning and 198.7 MB in the end (delta: 67.1 MB). Free memory was 77.2 MB in the beginning and 174.3 MB in the end (delta: -97.1 MB). Peak memory consumption was 16.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 325.38 ms. Allocated memory is still 198.7 MB. Free memory was 174.3 MB in the beginning and 158.9 MB in the end (delta: 15.4 MB). Peak memory consumption was 15.4 MB. Max. memory is 7.1 GB. * Sifa took 1802.74 ms. Allocated memory was 198.7 MB in the beginning and 220.7 MB in the end (delta: 22.0 MB). Free memory was 158.9 MB in the beginning and 99.3 MB in the end (delta: 59.6 MB). Peak memory consumption was 81.7 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]: 1742, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 11, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 8, TOOLS_POST_TIME[ms]: 436, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME[ms]: 873, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME[ms]: 12, TOOLS_QUANTIFIERELIM_APPLICATIONS: 13, TOOLS_QUANTIFIERELIM_TIME[ms]: 1291, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 840, FLUID_QUERY_TIME[ms]: 4, FLUID_QUERIES: 11, FLUID_YES_ANSWERS: 1, DOMAIN_JOIN_APPLICATIONS: 3, DOMAIN_JOIN_TIME[ms]: 301, DOMAIN_ALPHA_APPLICATIONS: 1, DOMAIN_ALPHA_TIME[ms]: 19, 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: 2, CALL_SUMMARIZER_CACHE_MISSES: 2, CALL_SUMMARIZER_OVERALL_TIME[ms]: 477, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 477, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 3, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 11, DAG_COMPRESSION_PROCESSED_NODES: 36, DAG_COMPRESSION_RETAINED_NODES: 24 - 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 34#(and (< |main_~#a~0.base| |#StackHeapBarrier|) (= 0 |main_~#pb~1.offset|) (= |#length| (store (store (store (store |old(#length)| |main_~#a~0.base| 4) |main_~#b~0.base| 4) |main_~#pa~1.base| 4) |main_~#pb~1.base| 4)) (= 0 |#NULL.base|) (< |main_~#pa~1.base| |#StackHeapBarrier|) (not (= |main_~#b~0.base| 0)) (not (= 0 |main_~#a~0.base|)) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (= (select (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base|) 0) (not (= 0 |main_~#pa~1.base|)) (<= (select (select |old(#memory_int)| |main_~#a~0.base|) |main_~#a~0.offset|) 2147483647) (= |main_~#b~0.offset| 0) (= (select (store (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base| 1) |main_~#pb~1.base|) 0) (< |main_~#pb~1.base| |#StackHeapBarrier|) (= |main_~#a~0.offset| 0) (< |main_~#b~0.base| |#StackHeapBarrier|) (= |main_~#a~0.offset| (select (select |old(#memory_$Pointer$.offset)| |main_~#pa~1.base|) |main_~#pa~1.offset|)) (not (= (select (select |#memory_int| |main_~#b~0.base|) |main_~#b~0.offset|) (select (select |#memory_int| |main_~#a~0.base|) |main_~#a~0.offset|))) (= (store (store (store (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base| 1) |main_~#pa~1.base| 1) |main_~#pb~1.base| 1) |#valid|) (= (select (select |old(#memory_$Pointer$.base)| |main_~#pa~1.base|) |main_~#pa~1.offset|) |main_~#a~0.base|) (= (select (select |old(#memory_$Pointer$.base)| |main_~#pb~1.base|) |main_~#pb~1.offset|) |main_~#b~0.base|) (<= 0 (+ (select (select |old(#memory_int)| |main_~#b~0.base|) |main_~#b~0.offset|) 2147483648)) (= 0 (select |old(#valid)| 0)) (<= 0 (+ (select (select |old(#memory_int)| |main_~#a~0.base|) |main_~#a~0.offset|) 2147483648)) (= (select (store |old(#valid)| |main_~#a~0.base| 1) |main_~#b~0.base|) 0) (<= (select (select |old(#memory_int)| |main_~#b~0.base|) |main_~#b~0.offset|) 2147483647) (not (= |main_~#pb~1.base| 0)) (= |#NULL.offset| 0) (= |main_~#b~0.offset| (select (select |old(#memory_$Pointer$.offset)| |main_~#pb~1.base|) |main_~#pb~1.offset|)) (= 0 |main_~#pa~1.offset|)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...