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/test02.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-584d7b9 [2019-08-31 03:26:50,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-31 03:26:50,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-31 03:26:50,472 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-31 03:26:50,472 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-31 03:26:50,473 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-31 03:26:50,475 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-31 03:26:50,477 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-31 03:26:50,478 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-31 03:26:50,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-31 03:26:50,480 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-08-31 03:26:50,481 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2019-08-31 03:26:50,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-31 03:26:50,511 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-31 03:26:50,512 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-31 03:26:50,513 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 [2019-08-31 03:26:50,539 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-31 03:26:50,540 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-31 03:26:50,542 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-31 03:26:50,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-31 03:26:50,543 INFO L138 SettingsManager]: * Use SBE=true [2019-08-31 03:26:50,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-31 03:26:50,543 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-31 03:26:50,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-31 03:26:50,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-31 03:26:50,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-31 03:26:50,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-31 03:26:50,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-31 03:26:50,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-31 03:26:50,546 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-31 03:26:50,546 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-31 03:26:50,546 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-31 03:26:50,547 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-31 03:26:50,547 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-31 03:26:50,547 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-31 03:26:50,547 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-31 03:26:50,548 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-31 03:26:50,548 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-31 03:26:50,548 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-31 03:26:50,548 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-31 03:26:50,549 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-31 03:26:50,549 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-31 03:26:50,549 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-31 03:26:50,549 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-31 03:26:50,549 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-31 03:26:50,595 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-31 03:26:50,608 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-31 03:26:50,611 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-31 03:26:50,613 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-31 03:26:50,613 INFO L275 PluginConnector]: CDTParser initialized [2019-08-31 03:26:50,617 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test02.c [2019-08-31 03:26:50,696 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9243efdc/6fd970778ba54b1cb528d016bfcaf584/FLAG42618dd16 [2019-08-31 03:26:51,185 INFO L306 CDTParser]: Found 1 translation units. [2019-08-31 03:26:51,187 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test02.c [2019-08-31 03:26:51,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9243efdc/6fd970778ba54b1cb528d016bfcaf584/FLAG42618dd16 [2019-08-31 03:26:51,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e9243efdc/6fd970778ba54b1cb528d016bfcaf584 [2019-08-31 03:26:51,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-31 03:26:51,567 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-31 03:26:51,568 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-31 03:26:51,568 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-31 03:26:51,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-31 03:26:51,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:26:51" (1/1) ... [2019-08-31 03:26:51,576 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55aeaf0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:26:51, skipping insertion in model container [2019-08-31 03:26:51,576 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 03:26:51" (1/1) ... [2019-08-31 03:26:51,584 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-31 03:26:51,602 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-31 03:26:51,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 03:26:51,848 INFO L188 MainTranslator]: Completed pre-run [2019-08-31 03:26:51,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-31 03:26:51,895 INFO L192 MainTranslator]: Completed translation [2019-08-31 03:26:51,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:26:51 WrapperNode [2019-08-31 03:26:51,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-31 03:26:51,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-31 03:26:51,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-31 03:26:51,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-31 03:26:52,006 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:26:51" (1/1) ... [2019-08-31 03:26:52,006 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:26:51" (1/1) ... [2019-08-31 03:26:52,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:26:51" (1/1) ... [2019-08-31 03:26:52,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:26:51" (1/1) ... [2019-08-31 03:26:52,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:26:51" (1/1) ... [2019-08-31 03:26:52,025 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:26:51" (1/1) ... [2019-08-31 03:26:52,026 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:26:51" (1/1) ... [2019-08-31 03:26:52,027 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-31 03:26:52,028 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-31 03:26:52,028 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-31 03:26:52,028 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-31 03:26:52,029 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 03:26:51" (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 [2019-08-31 03:26:52,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-31 03:26:52,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-31 03:26:52,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-31 03:26:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-31 03:26:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-31 03:26:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-31 03:26:52,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-31 03:26:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-31 03:26:52,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-31 03:26:52,267 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-31 03:26:52,267 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-08-31 03:26:52,269 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:26:52 BoogieIcfgContainer [2019-08-31 03:26:52,269 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-31 03:26:52,270 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2019-08-31 03:26:52,270 INFO L271 PluginConnector]: Initializing Sifa... [2019-08-31 03:26:52,270 INFO L275 PluginConnector]: Sifa initialized [2019-08-31 03:26:52,272 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 03:26:52" (1/1) ... [2019-08-31 03:26:52,336 INFO L162 IcfgInterpreter]: Started Sifa with 1 locations of interest [2019-08-31 03:26:52,336 INFO L169 IcfgInterpreter]: Building call graph [2019-08-31 03:26:52,345 INFO L174 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-08-31 03:26:52,354 INFO L179 IcfgInterpreter]: Starting interpretation [2019-08-31 03:26:52,356 INFO L199 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-08-31 03:26:52,495 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 [2019-08-31 03:26:52,496 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-08-31 03:26:52,526 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-08-31 03:26:52,527 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-08-31 03:26:52,528 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:16, output treesize:15 [2019-08-31 03:26:52,548 INFO L199 IcfgInterpreter]: Interpreting procedure main with input of size 22 for LOIs [2019-08-31 03:26:52,568 INFO L183 IcfgInterpreter]: Interpretation finished [2019-08-31 03:26:52,569 INFO L191 IcfgInterpreter]: Final predicates for locations of interest are: [2019-08-31 03:26:52,571 INFO L193 IcfgInterpreter]: Reachable states at location mainErr0ASSERT_VIOLATIONERROR_FUNCTION satisfy 18#(and (< |main_~#a~0.base| |#StackHeapBarrier|) (= 0 |#NULL.base|) (<= 0 |#NULL.base|) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (not (= 0 |main_~#a~0.base|)) (<= ~q~0 0) (<= 0 |#NULL.offset|) (= |#valid| (store |old(#valid)| |main_~#a~0.base| 1)) (= 0 ~q~0) (= |main_~#a~0.offset| 0) (<= main_~p1~0.offset 0) (= |#length| (store |old(#length)| |main_~#a~0.base| 4)) (<= |#NULL.base| 0) (<= 0 main_~p1~0.offset) (<= 0 |old(~q~0)|) (= main_~p1~0.base |main_~#a~0.base|) (<= 0 |main_~#a~0.offset|) (<= |main_~#a~0.offset| 0) (<= |old(~q~0)| 0) (= main_~p1~0.base main_~p2~0.base) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (<= main_~p2~0.offset 0) (= main_~p1~0.offset |main_~#a~0.offset|) (= main_~p2~0.offset main_~p1~0.offset) (= |#NULL.offset| 0) (<= 0 main_~p2~0.offset) (= 0 |old(~q~0)|) (<= 0 ~q~0)) [2019-08-31 03:26:52,588 INFO L103 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2019-08-31 03:26:52,588 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2019-08-31 03:26:52,590 INFO L168 Benchmark]: Toolchain (without parser) took 1023.49 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 90.2 MB in the beginning and 154.7 MB in the end (delta: -64.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-08-31 03:26:52,591 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-08-31 03:26:52,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 329.35 ms. Allocated memory is still 134.2 MB. Free memory was 90.0 MB in the beginning and 80.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2019-08-31 03:26:52,593 INFO L168 Benchmark]: Boogie Preprocessor took 130.16 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 80.6 MB in the beginning and 177.4 MB in the end (delta: -96.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-08-31 03:26:52,594 INFO L168 Benchmark]: RCFGBuilder took 241.59 ms. Allocated memory is still 200.8 MB. Free memory was 177.4 MB in the beginning and 166.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-08-31 03:26:52,594 INFO L168 Benchmark]: Sifa took 318.46 ms. Allocated memory is still 200.8 MB. Free memory was 166.5 MB in the beginning and 154.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. [2019-08-31 03:26:52,598 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 134.2 MB. Free memory was 108.5 MB in the beginning and 108.3 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 329.35 ms. Allocated memory is still 134.2 MB. Free memory was 90.0 MB in the beginning and 80.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.16 ms. Allocated memory was 134.2 MB in the beginning and 200.8 MB in the end (delta: 66.6 MB). Free memory was 80.6 MB in the beginning and 177.4 MB in the end (delta: -96.8 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 241.59 ms. Allocated memory is still 200.8 MB. Free memory was 177.4 MB in the beginning and 166.5 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * Sifa took 318.46 ms. Allocated memory is still 200.8 MB. Free memory was 166.5 MB in the beginning and 154.7 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions 0.2s OVERALL_TIME, 2 ICFG_INTERPRETER_ENTERED_PROCEDURES, 7 DAG_INTERPRETER_EARLY_EXIT_QUERIES, 0 DAG_INTERPRETER_EARLY_EXITS, 5 TOOLS_POST_APPLICATIONS, 0.1s TOOLS_POST_TIME, 2 TOOLS_POST_CALL_APPLICATIONS, 0.0s TOOLS_POST_CALL_TIME, 1 TOOLS_POST_RETURN_APPLICATIONS, 0.0s TOOLS_POST_RETURN_TIME, 0.1s TOOLS_QUANTIFIERELIM_TIME, 0.0s FLUID_QUERY_TIME, 7 FLUID_QUERIES, 0 FLUID_YES_ANSWERS, 2 DOMAIN_JOIN_APPLICATIONS, 0.0s DOMAIN_JOIN_TIME, 0 DOMAIN_ALPHA_APPLICATIONS, 0.0s DOMAIN_ALPHA_TIME, 0 DOMAIN_WIDEN_APPLICATIONS, 0.0s DOMAIN_WIDEN_TIME, 0 DOMAIN_ISSUBSETEQ_APPLICATIONS, 0.0s DOMAIN_ISSUBSETEQ_TIME, 0 DOMAIN_ISBOTTOM_APPLICATIONS, 0.0s DOMAIN_ISBOTTOM_TIME, 0 LOOP_SUMMARIZER_APPLICATIONS, 0 LOOP_SUMMARIZER_CACHE_MISSES, 0.0s LOOP_SUMMARIZER_OVERALL_TIME, 0.0s LOOP_SUMMARIZER_NEW_COMPUTATION_TIME, 0 LOOP_SUMMARIZER_FIXPOINT_ITERATIONS, 1 CALL_SUMMARIZER_APPLICATIONS, 1 CALL_SUMMARIZER_CACHE_MISSES, 0.1s CALL_SUMMARIZER_OVERALL_TIME, 0.1s CALL_SUMMARIZER_NEW_COMPUTATION_TIME, 0.0s PROCEDURE_GRAPH_BUILDER_TIME, 0.0s PATH_EXPR_TIME, 0.0s REGEX_TO_DAG_TIME, 0.0s DAG_COMPRESSION_TIME, 28 DAG_COMPRESSION_PROCESSED_NODES, 19 DAG_COMPRESSION_RETAINED_NODES - UnprovableResult [Line: 19]: 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 18#(and (< |main_~#a~0.base| |#StackHeapBarrier|) (= 0 |#NULL.base|) (<= 0 |#NULL.base|) (= 0 (select |old(#valid)| |main_~#a~0.base|)) (not (= 0 |main_~#a~0.base|)) (<= ~q~0 0) (<= 0 |#NULL.offset|) (= |#valid| (store |old(#valid)| |main_~#a~0.base| 1)) (= 0 ~q~0) (= |main_~#a~0.offset| 0) (<= main_~p1~0.offset 0) (= |#length| (store |old(#length)| |main_~#a~0.base| 4)) (<= |#NULL.base| 0) (<= 0 main_~p1~0.offset) (<= 0 |old(~q~0)|) (= main_~p1~0.base |main_~#a~0.base|) (<= 0 |main_~#a~0.offset|) (<= |main_~#a~0.offset| 0) (<= |old(~q~0)| 0) (= main_~p1~0.base main_~p2~0.base) (= 0 (select |old(#valid)| 0)) (<= |#NULL.offset| 0) (<= main_~p2~0.offset 0) (= main_~p1~0.offset |main_~#a~0.offset|) (= main_~p2~0.offset main_~p1~0.offset) (= |#NULL.offset| 0) (<= 0 main_~p2~0.offset) (= 0 |old(~q~0)|) (<= 0 ~q~0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...