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/ldv-regression/recursive_list.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fab3c18 [2019-08-22 21:44:46,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-22 21:44:46,189 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-22 21:44:46,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-22 21:44:46,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-22 21:44:46,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-22 21:44:46,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-22 21:44:46,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-22 21:44:46,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-22 21:44:46,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-22 21:44:46,210 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-22 21:44:46,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-22 21:44:46,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-22 21:44:46,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-22 21:44:46,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-22 21:44:46,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-22 21:44:46,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-22 21:44:46,217 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-22 21:44:46,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-22 21:44:46,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-22 21:44:46,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-22 21:44:46,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-22 21:44:46,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-22 21:44:46,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-22 21:44:46,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-08-22 21:44:46,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-22 21:44:46,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-22 21:44:46,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-22 21:44:46,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-22 21:44:46,235 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-22 21:44:46,235 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-22 21:44:46,236 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-22 21:44:46,236 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-22 21:44:46,237 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-22 21:44:46,238 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-22 21:44:46,238 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-22 21:44:46,239 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 [2019-08-22 21:44:46,254 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-22 21:44:46,254 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-22 21:44:46,255 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-22 21:44:46,256 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-22 21:44:46,256 INFO L138 SettingsManager]: * Use SBE=true [2019-08-22 21:44:46,256 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-22 21:44:46,256 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-22 21:44:46,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-22 21:44:46,257 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-22 21:44:46,257 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-22 21:44:46,257 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-22 21:44:46,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-22 21:44:46,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-22 21:44:46,258 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-22 21:44:46,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-22 21:44:46,258 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-22 21:44:46,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-22 21:44:46,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-22 21:44:46,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-22 21:44:46,259 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-22 21:44:46,260 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-22 21:44:46,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-22 21:44:46,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-22 21:44:46,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-22 21:44:46,261 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-22 21:44:46,261 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-22 21:44:46,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-22 21:44:46,261 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-22 21:44:46,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-22 21:44:46,290 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-22 21:44:46,304 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-22 21:44:46,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-22 21:44:46,309 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-22 21:44:46,309 INFO L275 PluginConnector]: CDTParser initialized [2019-08-22 21:44:46,310 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/recursive_list.i [2019-08-22 21:44:46,374 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ed91ba70/b11d3ef40d294139a6e7e4445762552d/FLAGd16fad0a3 [2019-08-22 21:44:46,801 INFO L306 CDTParser]: Found 1 translation units. [2019-08-22 21:44:46,802 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/recursive_list.i [2019-08-22 21:44:46,808 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ed91ba70/b11d3ef40d294139a6e7e4445762552d/FLAGd16fad0a3 [2019-08-22 21:44:47,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ed91ba70/b11d3ef40d294139a6e7e4445762552d [2019-08-22 21:44:47,222 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-22 21:44:47,223 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-22 21:44:47,226 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-22 21:44:47,226 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-22 21:44:47,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-22 21:44:47,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:44:47" (1/1) ... [2019-08-22 21:44:47,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77c206f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:44:47, skipping insertion in model container [2019-08-22 21:44:47,235 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 09:44:47" (1/1) ... [2019-08-22 21:44:47,243 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-22 21:44:47,264 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-22 21:44:47,488 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 21:44:47,501 INFO L188 MainTranslator]: Completed pre-run [2019-08-22 21:44:47,521 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-22 21:44:47,540 INFO L192 MainTranslator]: Completed translation [2019-08-22 21:44:47,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:44:47 WrapperNode [2019-08-22 21:44:47,541 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-22 21:44:47,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-22 21:44:47,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-22 21:44:47,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-22 21:44:47,648 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:44:47" (1/1) ... [2019-08-22 21:44:47,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:44:47" (1/1) ... [2019-08-22 21:44:47,655 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:44:47" (1/1) ... [2019-08-22 21:44:47,656 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:44:47" (1/1) ... [2019-08-22 21:44:47,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:44:47" (1/1) ... [2019-08-22 21:44:47,666 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:44:47" (1/1) ... [2019-08-22 21:44:47,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:44:47" (1/1) ... [2019-08-22 21:44:47,670 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-22 21:44:47,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-22 21:44:47,671 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-22 21:44:47,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-22 21:44:47,672 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 09:44:47" (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 [2019-08-22 21:44:47,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-22 21:44:47,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-22 21:44:47,729 INFO L138 BoogieDeclarations]: Found implementation of procedure err [2019-08-22 21:44:47,729 INFO L138 BoogieDeclarations]: Found implementation of procedure allocate_memory [2019-08-22 21:44:47,730 INFO L138 BoogieDeclarations]: Found implementation of procedure append [2019-08-22 21:44:47,730 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-22 21:44:47,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-22 21:44:47,730 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-08-22 21:44:47,730 INFO L130 BoogieDeclarations]: Found specification of procedure err [2019-08-22 21:44:47,731 INFO L130 BoogieDeclarations]: Found specification of procedure allocate_memory [2019-08-22 21:44:47,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-08-22 21:44:47,731 INFO L130 BoogieDeclarations]: Found specification of procedure append [2019-08-22 21:44:47,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-22 21:44:47,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-08-22 21:44:47,733 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-22 21:44:47,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-22 21:44:47,734 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-08-22 21:44:47,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-22 21:44:47,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-22 21:44:47,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-22 21:44:47,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-22 21:44:47,992 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-22 21:44:47,992 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-22 21:44:47,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:44:47 BoogieIcfgContainer [2019-08-22 21:44:47,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-22 21:44:47,994 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-22 21:44:47,994 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-22 21:44:47,995 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-22 21:44:47,995 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 09:44:47" (1/1) ... [2019-08-22 21:44:48,018 INFO L148 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-22 21:44:48,021 INFO L155 IcfgInterpreter]: Building call graph [2019-08-22 21:44:48,031 INFO L160 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-22 21:44:48,058 INFO L165 IcfgInterpreter]: Starting interpretation [2019-08-22 21:44:48,060 INFO L185 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 [2019-08-22 21:44:48,167 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 [2019-08-22 21:44:48,168 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:48,196 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:48,197 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-22 21:44:48,197 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2019-08-22 21:44:48,220 INFO L185 IcfgInterpreter]: Interpreting procedure main with input of size 32 [2019-08-22 21:44:48,260 INFO L496 ElimStorePlain]: Start of recursive call 2: 1 dim-0 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-08-22 21:44:48,449 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-08-22 21:44:48,449 INFO L567 ElimStorePlain]: treesize reduction 12, result has 90.2 percent of original size [2019-08-22 21:44:48,451 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2019-08-22 21:44:48,453 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:136, output treesize:110 [2019-08-22 21:44:48,468 INFO L392 ElimStorePlain]: Different costs {0=[|v_#length_14|], 1=[|v_#valid_21|]} [2019-08-22 21:44:48,478 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 6 treesize of output 5 [2019-08-22 21:44:48,479 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:48,504 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:48,515 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 9 [2019-08-22 21:44:48,516 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:48,538 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:48,539 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-22 21:44:48,539 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:34, output treesize:27 [2019-08-22 21:44:48,577 INFO L392 ElimStorePlain]: Different costs {0=[|v_#memory_$Pointer$.base_16|, |v_#memory_int_16|, |v_#memory_$Pointer$.offset_16|], 2=[|v_#memory_$Pointer$.base_14|, |v_#memory_$Pointer$.offset_14|]} [2019-08-22 21:44:48,592 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 1 [2019-08-22 21:44:48,593 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:48,734 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2019-08-22 21:44:48,734 INFO L567 ElimStorePlain]: treesize reduction 3, result has 97.1 percent of original size [2019-08-22 21:44:48,746 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-08-22 21:44:48,749 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 7 [2019-08-22 21:44:48,749 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:48,815 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:48,825 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 15 treesize of output 1 [2019-08-22 21:44:48,826 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:48,872 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:48,884 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-08-22 21:44:48,884 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:48,932 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:48,942 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 13 treesize of output 9 [2019-08-22 21:44:48,942 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:48,982 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:48,983 INFO L496 ElimStorePlain]: Start of recursive call 1: 5 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-22 21:44:48,984 INFO L221 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:120, output treesize:64 [2019-08-22 21:44:49,008 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:49,089 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:49,094 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:49,157 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:49,157 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-22 21:44:49,158 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:130, output treesize:90 [2019-08-22 21:44:49,200 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-08-22 21:44:49,201 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:49,293 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:49,302 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2019-08-22 21:44:49,302 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:49,387 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:49,398 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2019-08-22 21:44:49,399 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:49,477 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:49,485 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2019-08-22 21:44:49,486 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:49,556 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:49,564 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2019-08-22 21:44:49,564 INFO L496 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:49,625 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:49,626 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-1 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-08-22 21:44:49,626 INFO L221 ElimStorePlain]: Needed 6 recursive calls to eliminate 5 variables, input treesize:132, output treesize:97 [2019-08-22 21:44:49,645 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 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 11 treesize of output 7 [2019-08-22 21:44:49,646 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-22 21:44:49,706 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-22 21:44:49,708 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 1 xjuncts. [2019-08-22 21:44:49,709 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 4 variables, input treesize:143, output treesize:126 [2019-08-22 21:44:49,709 INFO L185 IcfgInterpreter]: Interpreting procedure err with input of size 53 [2019-08-22 21:44:49,711 INFO L169 IcfgInterpreter]: Interpretation finished [2019-08-22 21:44:49,711 INFO L177 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-22 21:44:49,713 INFO L179 IcfgInterpreter]: Reachable states at location errErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 36#(exists ((v_main_~l~0.base_BEFORE_CALL_1 Int) (v_main_~l~0.offset_BEFORE_CALL_1 Int)) (and (= 1 (select |#valid| v_main_~l~0.base_BEFORE_CALL_1)) (<= |#NULL.base| 0) (not (= 0 (select (select |#memory_$Pointer$.base| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4)))) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4))) (+ (select (select |#memory_$Pointer$.offset| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4)) 4))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4))) (+ (select (select |#memory_$Pointer$.offset| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4)) 4))) 0) (< |#StackHeapBarrier| (select (select |#memory_$Pointer$.base| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4))) (<= 0 |#NULL.base|) (<= 0 v_main_~l~0.offset_BEFORE_CALL_1) (<= (select (select |#memory_$Pointer$.offset| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4)) 0) (<= ~i~0 1) (not (= 0 v_main_~l~0.base_BEFORE_CALL_1)) (< |#StackHeapBarrier| v_main_~l~0.base_BEFORE_CALL_1) (<= v_main_~l~0.offset_BEFORE_CALL_1 0) (= 2 (select (select |#memory_int| v_main_~l~0.base_BEFORE_CALL_1) v_main_~l~0.offset_BEFORE_CALL_1)) (= 8 (select |#length| v_main_~l~0.base_BEFORE_CALL_1)) (<= 0 (select (select |#memory_$Pointer$.offset| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4))) (<= 1 ~i~0) (= |#NULL.offset| 0))) [2019-08-22 21:44:49,731 INFO L91 terpretationObserver]: ✘ Some locations of interest might be reachable, see reported results. [2019-08-22 21:44:49,732 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-22 21:44:49,734 INFO L168 Benchmark]: Toolchain (without parser) took 2510.44 ms. Allocated memory was 137.4 MB in the beginning and 216.5 MB in the end (delta: 79.2 MB). Free memory was 84.7 MB in the beginning and 95.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 79.1 MB. Max. memory is 7.1 GB. [2019-08-22 21:44:49,735 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 137.4 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-22 21:44:49,735 INFO L168 Benchmark]: CACSL2BoogieTranslator took 315.20 ms. Allocated memory is still 137.4 MB. Free memory was 84.5 MB in the beginning and 74.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. [2019-08-22 21:44:49,736 INFO L168 Benchmark]: Boogie Preprocessor took 128.57 ms. Allocated memory was 137.4 MB in the beginning and 197.7 MB in the end (delta: 60.3 MB). Free memory was 74.0 MB in the beginning and 174.3 MB in the end (delta: -100.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. [2019-08-22 21:44:49,737 INFO L168 Benchmark]: RCFGBuilder took 323.35 ms. Allocated memory is still 197.7 MB. Free memory was 174.3 MB in the beginning and 157.6 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2019-08-22 21:44:49,738 INFO L168 Benchmark]: Symbolic Interpretation took 1737.81 ms. Allocated memory was 197.7 MB in the beginning and 216.5 MB in the end (delta: 18.9 MB). Free memory was 157.6 MB in the beginning and 95.8 MB in the end (delta: 61.8 MB). Peak memory consumption was 91.6 MB. Max. memory is 7.1 GB. [2019-08-22 21:44:49,742 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 8]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: Over-approximation of reachable states at this location is 36#(exists ((v_main_~l~0.base_BEFORE_CALL_1 Int) (v_main_~l~0.offset_BEFORE_CALL_1 Int)) (and (= 1 (select |#valid| v_main_~l~0.base_BEFORE_CALL_1)) (<= |#NULL.base| 0) (not (= 0 (select (select |#memory_$Pointer$.base| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4)))) (= (select (select |#memory_int| (select (select |#memory_$Pointer$.base| (select (select |#memory_$Pointer$.base| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4))) (+ (select (select |#memory_$Pointer$.offset| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4)) 4))) (select (select |#memory_$Pointer$.offset| (select (select |#memory_$Pointer$.base| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4))) (+ (select (select |#memory_$Pointer$.offset| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4)) 4))) 0) (< |#StackHeapBarrier| (select (select |#memory_$Pointer$.base| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4))) (<= 0 |#NULL.base|) (<= 0 v_main_~l~0.offset_BEFORE_CALL_1) (<= (select (select |#memory_$Pointer$.offset| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4)) 0) (<= ~i~0 1) (not (= 0 v_main_~l~0.base_BEFORE_CALL_1)) (< |#StackHeapBarrier| v_main_~l~0.base_BEFORE_CALL_1) (<= v_main_~l~0.offset_BEFORE_CALL_1 0) (= 2 (select (select |#memory_int| v_main_~l~0.base_BEFORE_CALL_1) v_main_~l~0.offset_BEFORE_CALL_1)) (= 8 (select |#length| v_main_~l~0.base_BEFORE_CALL_1)) (<= 0 (select (select |#memory_$Pointer$.offset| v_main_~l~0.base_BEFORE_CALL_1) (+ v_main_~l~0.offset_BEFORE_CALL_1 4))) (<= 1 ~i~0) (= |#NULL.offset| 0))). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 137.4 MB. Free memory was 103.4 MB in the beginning and 103.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 315.20 ms. Allocated memory is still 137.4 MB. Free memory was 84.5 MB in the beginning and 74.0 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 128.57 ms. Allocated memory was 137.4 MB in the beginning and 197.7 MB in the end (delta: 60.3 MB). Free memory was 74.0 MB in the beginning and 174.3 MB in the end (delta: -100.3 MB). Peak memory consumption was 11.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 323.35 ms. Allocated memory is still 197.7 MB. Free memory was 174.3 MB in the beginning and 157.6 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 1737.81 ms. Allocated memory was 197.7 MB in the beginning and 216.5 MB in the end (delta: 18.9 MB). Free memory was 157.6 MB in the beginning and 95.8 MB in the end (delta: 61.8 MB). Peak memory consumption was 91.6 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...