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/array-examples/standard_strcmp_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-55cd5f5 [2019-08-14 10:35:33,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-08-14 10:35:33,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-08-14 10:35:33,013 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-08-14 10:35:33,013 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-08-14 10:35:33,014 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-08-14 10:35:33,015 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-08-14 10:35:33,017 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-08-14 10:35:33,019 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-08-14 10:35:33,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-08-14 10:35:33,020 INFO L181 SettingsManager]: Resetting Symbolic Interpretation preferences to default values [2019-08-14 10:35:33,022 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-08-14 10:35:33,022 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-08-14 10:35:33,023 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-08-14 10:35:33,024 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-08-14 10:35:33,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-08-14 10:35:33,025 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-08-14 10:35:33,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-08-14 10:35:33,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-08-14 10:35:33,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-08-14 10:35:33,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-08-14 10:35:33,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-08-14 10:35:33,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-08-14 10:35:33,034 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-08-14 10:35:33,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-08-14 10:35:33,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-08-14 10:35:33,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-08-14 10:35:33,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-08-14 10:35:33,038 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-08-14 10:35:33,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-08-14 10:35:33,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-08-14 10:35:33,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-08-14 10:35:33,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-08-14 10:35:33,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-08-14 10:35:33,044 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-08-14 10:35:33,044 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-08-14 10:35:33,045 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-08-14 10:35:33,045 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-08-14 10:35:33,046 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-08-14 10:35:33,049 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-08-14 10:35:33,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-08-14 10:35:33,050 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 [2019-08-14 10:35:33,075 INFO L113 SettingsManager]: Loading preferences was successful [2019-08-14 10:35:33,075 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-08-14 10:35:33,078 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-08-14 10:35:33,078 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-08-14 10:35:33,078 INFO L138 SettingsManager]: * Use SBE=true [2019-08-14 10:35:33,078 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-08-14 10:35:33,078 INFO L138 SettingsManager]: * sizeof long=4 [2019-08-14 10:35:33,079 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-08-14 10:35:33,079 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-08-14 10:35:33,079 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-08-14 10:35:33,080 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-08-14 10:35:33,080 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-08-14 10:35:33,080 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-08-14 10:35:33,081 INFO L138 SettingsManager]: * sizeof long double=12 [2019-08-14 10:35:33,081 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-08-14 10:35:33,081 INFO L138 SettingsManager]: * Use constant arrays=true [2019-08-14 10:35:33,081 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-08-14 10:35:33,081 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-08-14 10:35:33,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-08-14 10:35:33,082 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-08-14 10:35:33,082 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-08-14 10:35:33,082 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-08-14 10:35:33,083 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-08-14 10:35:33,083 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-08-14 10:35:33,083 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-08-14 10:35:33,083 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-08-14 10:35:33,084 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-08-14 10:35:33,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-08-14 10:35:33,084 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-08-14 10:35:33,131 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-08-14 10:35:33,143 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-08-14 10:35:33,147 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-08-14 10:35:33,148 INFO L271 PluginConnector]: Initializing CDTParser... [2019-08-14 10:35:33,149 INFO L275 PluginConnector]: CDTParser initialized [2019-08-14 10:35:33,149 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_strcmp_ground.i [2019-08-14 10:35:33,209 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c57431d/c7b133e233ec42b486b1865c57dc04ef/FLAG3f57ef997 [2019-08-14 10:35:33,621 INFO L306 CDTParser]: Found 1 translation units. [2019-08-14 10:35:33,622 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_strcmp_ground.i [2019-08-14 10:35:33,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c57431d/c7b133e233ec42b486b1865c57dc04ef/FLAG3f57ef997 [2019-08-14 10:35:34,027 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c57431d/c7b133e233ec42b486b1865c57dc04ef [2019-08-14 10:35:34,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-08-14 10:35:34,040 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-08-14 10:35:34,041 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-08-14 10:35:34,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-08-14 10:35:34,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-08-14 10:35:34,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 10:35:34" (1/1) ... [2019-08-14 10:35:34,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48f9b1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:35:34, skipping insertion in model container [2019-08-14 10:35:34,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.08 10:35:34" (1/1) ... [2019-08-14 10:35:34,058 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-08-14 10:35:34,081 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-08-14 10:35:34,330 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 10:35:34,338 INFO L188 MainTranslator]: Completed pre-run [2019-08-14 10:35:34,358 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-08-14 10:35:34,374 INFO L192 MainTranslator]: Completed translation [2019-08-14 10:35:34,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:35:34 WrapperNode [2019-08-14 10:35:34,375 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-08-14 10:35:34,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-08-14 10:35:34,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-08-14 10:35:34,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-08-14 10:35:34,481 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:35:34" (1/1) ... [2019-08-14 10:35:34,481 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:35:34" (1/1) ... [2019-08-14 10:35:34,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:35:34" (1/1) ... [2019-08-14 10:35:34,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:35:34" (1/1) ... [2019-08-14 10:35:34,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:35:34" (1/1) ... [2019-08-14 10:35:34,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:35:34" (1/1) ... [2019-08-14 10:35:34,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:35:34" (1/1) ... [2019-08-14 10:35:34,516 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-08-14 10:35:34,516 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-08-14 10:35:34,516 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-08-14 10:35:34,517 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-08-14 10:35:34,518 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.08 10:35:34" (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 [2019-08-14 10:35:34,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-08-14 10:35:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-08-14 10:35:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-08-14 10:35:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure _strcmp [2019-08-14 10:35:34,580 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-08-14 10:35:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-08-14 10:35:34,580 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-08-14 10:35:34,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-08-14 10:35:34,581 INFO L130 BoogieDeclarations]: Found specification of procedure _strcmp [2019-08-14 10:35:34,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-08-14 10:35:34,581 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-08-14 10:35:34,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-08-14 10:35:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-08-14 10:35:34,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-08-14 10:35:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-08-14 10:35:34,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-08-14 10:35:34,843 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-08-14 10:35:34,844 INFO L283 CfgBuilder]: Removed 3 assume(true) statements. [2019-08-14 10:35:34,845 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 10:35:34 BoogieIcfgContainer [2019-08-14 10:35:34,845 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-08-14 10:35:34,845 INFO L113 PluginConnector]: ------------------------Symbolic Interpretation---------------------------- [2019-08-14 10:35:34,846 INFO L271 PluginConnector]: Initializing Symbolic Interpretation... [2019-08-14 10:35:34,846 INFO L275 PluginConnector]: Symbolic Interpretation initialized [2019-08-14 10:35:34,847 INFO L185 PluginConnector]: Executing the observer SymbolicInterpretationObserver from plugin Symbolic Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.08 10:35:34" (1/1) ... [2019-08-14 10:35:35,453 INFO L132 PluginConnector]: ------------------------ END Symbolic Interpretation---------------------------- [2019-08-14 10:35:35,456 INFO L168 Benchmark]: Toolchain (without parser) took 1414.87 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 84.7 MB in the beginning and 128.7 MB in the end (delta: -44.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 7.1 GB. [2019-08-14 10:35:35,458 INFO L168 Benchmark]: CDTParser took 0.22 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. [2019-08-14 10:35:35,461 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.37 ms. Allocated memory is still 137.4 MB. Free memory was 84.5 MB in the beginning and 74.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2019-08-14 10:35:35,463 INFO L168 Benchmark]: Boogie Preprocessor took 140.13 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 74.4 MB in the beginning and 174.8 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. [2019-08-14 10:35:35,464 INFO L168 Benchmark]: RCFGBuilder took 328.78 ms. Allocated memory is still 198.2 MB. Free memory was 174.8 MB in the beginning and 158.5 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. [2019-08-14 10:35:35,467 INFO L168 Benchmark]: Symbolic Interpretation took 607.51 ms. Allocated memory is still 198.2 MB. Free memory was 158.5 MB in the beginning and 128.7 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. [2019-08-14 10:35:35,482 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.symbolicinterpretation: - UnprovableResult [Line: 2]: 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 121#(and (or (= |__VERIFIER_assert_#in~cond| 1) (= |__VERIFIER_assert_#in~cond| 0)) (= 0 __VERIFIER_assert_~cond) (= |__VERIFIER_assert_#in~cond| __VERIFIER_assert_~cond)). Possible FailurePath: * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 334.37 ms. Allocated memory is still 137.4 MB. Free memory was 84.5 MB in the beginning and 74.4 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.13 ms. Allocated memory was 137.4 MB in the beginning and 198.2 MB in the end (delta: 60.8 MB). Free memory was 74.4 MB in the beginning and 174.8 MB in the end (delta: -100.4 MB). Peak memory consumption was 11.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 328.78 ms. Allocated memory is still 198.2 MB. Free memory was 174.8 MB in the beginning and 158.5 MB in the end (delta: 16.3 MB). Peak memory consumption was 16.3 MB. Max. memory is 7.1 GB. * Symbolic Interpretation took 607.51 ms. Allocated memory is still 198.2 MB. Free memory was 158.5 MB in the beginning and 128.7 MB in the end (delta: 29.8 MB). Peak memory consumption was 29.8 MB. Max. memory is 7.1 GB. RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request...