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-fea9116 [2019-09-20 19:27:16,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 19:27:16,779 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 19:27:16,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 19:27:16,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 19:27:16,795 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 19:27:16,796 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 19:27:16,798 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 19:27:16,800 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 19:27:16,800 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 19:27:16,801 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 19:27:16,802 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 19:27:16,803 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 19:27:16,804 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 19:27:16,805 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 19:27:16,806 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 19:27:16,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 19:27:16,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 19:27:16,809 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 19:27:16,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 19:27:16,813 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 19:27:16,814 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 19:27:16,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 19:27:16,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 19:27:16,818 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 19:27:16,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 19:27:16,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 19:27:16,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 19:27:16,829 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 19:27:16,853 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 19:27:16,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 19:27:16,855 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-20 19:27:16,855 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-20 19:27:16,855 INFO L138 SettingsManager]: * Use SBE=true [2019-09-20 19:27:16,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 19:27:16,855 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 19:27:16,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-20 19:27:16,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 19:27:16,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 19:27:16,856 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 19:27:16,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 19:27:16,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 19:27:16,857 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 19:27:16,857 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 19:27:16,857 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-20 19:27:16,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 19:27:16,858 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 19:27:16,858 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 19:27:16,858 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-20 19:27:16,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-20 19:27:16,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 19:27:16,859 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 19:27:16,859 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 19:27:16,859 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-20 19:27:16,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-20 19:27:16,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 19:27:16,860 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-20 19:27:16,860 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 [2019-09-20 19:27:16,903 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 19:27:16,917 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 19:27:16,920 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 19:27:16,922 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 19:27:16,924 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 19:27:16,925 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test18.c [2019-09-20 19:27:16,977 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b36fd214/158a9352926041d6961266dc32935ad9/FLAG1b8c93d8b [2019-09-20 19:27:17,410 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 19:27:17,411 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test18.c [2019-09-20 19:27:17,417 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b36fd214/158a9352926041d6961266dc32935ad9/FLAG1b8c93d8b [2019-09-20 19:27:17,768 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b36fd214/158a9352926041d6961266dc32935ad9 [2019-09-20 19:27:17,778 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 19:27:17,780 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 19:27:17,781 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 19:27:17,781 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 19:27:17,784 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 19:27:17,785 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:27:17" (1/1) ... [2019-09-20 19:27:17,788 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae326e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:27:17, skipping insertion in model container [2019-09-20 19:27:17,789 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 07:27:17" (1/1) ... [2019-09-20 19:27:17,796 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 19:27:17,816 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 19:27:18,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 19:27:18,051 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 19:27:18,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 19:27:18,087 INFO L192 MainTranslator]: Completed translation [2019-09-20 19:27:18,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:27:18 WrapperNode [2019-09-20 19:27:18,087 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 19:27:18,088 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 19:27:18,088 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 19:27:18,088 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 19:27:18,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:27:18" (1/1) ... [2019-09-20 19:27:18,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:27:18" (1/1) ... [2019-09-20 19:27:18,202 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:27:18" (1/1) ... [2019-09-20 19:27:18,204 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:27:18" (1/1) ... [2019-09-20 19:27:18,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:27:18" (1/1) ... [2019-09-20 19:27:18,223 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:27:18" (1/1) ... [2019-09-20 19:27:18,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:27:18" (1/1) ... [2019-09-20 19:27:18,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 19:27:18,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 19:27:18,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 19:27:18,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 19:27:18,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 07:27:18" (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 19:27:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 19:27:18,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 19:27:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2019-09-20 19:27:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2019-09-20 19:27:18,281 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 19:27:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 19:27:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure g [2019-09-20 19:27:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 19:27:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 19:27:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure f [2019-09-20 19:27:18,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 19:27:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 19:27:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 19:27:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 19:27:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 19:27:18,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 19:27:18,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 19:27:18,701 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 19:27:18,702 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-20 19:27:18,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:27:18 BoogieIcfgContainer [2019-09-20 19:27:18,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 19:27:18,704 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-09-20 19:27:18,705 INFO L271 PluginConnector]: Initializing Sifa... [2019-09-20 19:27:18,705 INFO L275 PluginConnector]: Sifa initialized [2019-09-20 19:27:18,706 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 07:27:18" (1/1) ... [2019-09-20 19:27:18,707 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 19:27:18,728 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-09-20 19:27:18,728 INFO L169 IcfgInterpreter]: Building call graph [2019-09-20 19:27:18,736 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-09-20 19:27:18,750 INFO L179 IcfgInterpreter]: Starting interpretation [2019-09-20 19:27:18,753 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-09-20 19:27:18,899 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 23 for LOIs [2019-09-20 19:27:19,351 WARN L191 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2019-09-20 19:27:20,491 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-20 19:27:20,853 WARN L191 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-20 19:27:21,240 WARN L191 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-20 19:27:21,310 INFO L183 IcfgInterpreter]: Interpretation finished [2019-09-20 19:27:21,310 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-09-20 19:27:21,315 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)))) [2019-09-20 19:27:21,332 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-09-20 19:27:21,333 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-09-20 19:27:21,334 INFO L168 Benchmark]: Toolchain (without parser) took 3554.91 ms. Allocated memory was 138.4 MB in the beginning and 267.4 MB in the end (delta: 129.0 MB). Free memory was 85.5 MB in the beginning and 157.9 MB in the end (delta: -72.5 MB). Peak memory consumption was 56.5 MB. Max. memory is 7.1 GB. [2019-09-20 19:27:21,343 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 19:27:21,344 INFO L168 Benchmark]: CACSL2BoogieTranslator took 306.87 ms. Allocated memory is still 138.4 MB. Free memory was 85.2 MB in the beginning and 75.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2019-09-20 19:27:21,346 INFO L168 Benchmark]: Boogie Preprocessor took 138.72 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 75.5 MB in the beginning and 176.1 MB in the end (delta: -100.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. [2019-09-20 19:27:21,347 INFO L168 Benchmark]: RCFGBuilder took 477.24 ms. Allocated memory is still 198.7 MB. Free memory was 176.1 MB in the beginning and 158.1 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. [2019-09-20 19:27:21,348 INFO L168 Benchmark]: Sifa took 2628.37 ms. Allocated memory was 198.7 MB in the beginning and 267.4 MB in the end (delta: 68.7 MB). Free memory was 158.1 MB in the beginning and 157.9 MB in the end (delta: 182.0 kB). Peak memory consumption was 68.9 MB. Max. memory is 7.1 GB. [2019-09-20 19:27:21,354 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 103.2 MB in the beginning and 103.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 306.87 ms. Allocated memory is still 138.4 MB. Free memory was 85.2 MB in the beginning and 75.5 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 138.72 ms. Allocated memory was 138.4 MB in the beginning and 198.7 MB in the end (delta: 60.3 MB). Free memory was 75.5 MB in the beginning and 176.1 MB in the end (delta: -100.6 MB). Peak memory consumption was 11.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 477.24 ms. Allocated memory is still 198.7 MB. Free memory was 176.1 MB in the beginning and 158.1 MB in the end (delta: 18.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 7.1 GB. * Sifa took 2628.37 ms. Allocated memory was 198.7 MB in the beginning and 267.4 MB in the end (delta: 68.7 MB). Free memory was 158.1 MB in the beginning and 157.9 MB in the end (delta: 182.0 kB). Peak memory consumption was 68.9 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]: 2587, ICFG_INTERPRETER_ENTERED_PROCEDURES: 2, DAG_INTERPRETER_EARLY_EXIT_QUERIES: 31, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 27, TOOLS_POST_TIME[ms]: 1845, TOOLS_POST_CALL_APPLICATIONS: 4, TOOLS_POST_CALL_TIME[ms]: 462, TOOLS_POST_RETURN_APPLICATIONS: 3, TOOLS_POST_RETURN_TIME[ms]: 110, TOOLS_QUANTIFIERELIM_APPLICATIONS: 34, TOOLS_QUANTIFIERELIM_TIME[ms]: 2392, TOOLS_QUANTIFIERELIM_MAX_TIME[ms]: 433, FLUID_QUERY_TIME[ms]: 7, FLUID_QUERIES: 31, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 4, DOMAIN_JOIN_TIME[ms]: 85, 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]: 2011, CALL_SUMMARIZER_NEW_COMPUTATION_TIME[ms]: 2010, PROCEDURE_GRAPH_BUILDER_TIME[ms]: 5, PATH_EXPR_TIME[ms]: 5, REGEX_TO_DAG_TIME[ms]: 3, DAG_COMPRESSION_TIME[ms]: 17, 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...