java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data --generate-csv --csv-dir csv -tc ../../../trunk/examples/toolchains/AbstractInterpretationCInline.xml -s ../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf -i ../../../trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-69f5bdd-m [2018-09-18 16:40:44,068 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-09-18 16:40:44,072 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-09-18 16:40:44,085 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-09-18 16:40:44,086 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-09-18 16:40:44,087 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-09-18 16:40:44,088 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-09-18 16:40:44,090 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-09-18 16:40:44,092 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-09-18 16:40:44,093 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-09-18 16:40:44,094 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-09-18 16:40:44,094 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-09-18 16:40:44,096 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-09-18 16:40:44,097 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-09-18 16:40:44,102 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-09-18 16:40:44,102 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-09-18 16:40:44,103 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-09-18 16:40:44,105 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-09-18 16:40:44,109 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-09-18 16:40:44,111 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-09-18 16:40:44,114 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-09-18 16:40:44,116 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-09-18 16:40:44,122 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-09-18 16:40:44,139 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/taipanbench/svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf [2018-09-18 16:40:44,166 INFO L110 SettingsManager]: Loading preferences was successful [2018-09-18 16:40:44,166 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-09-18 16:40:44,167 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-09-18 16:40:44,167 INFO L133 SettingsManager]: * User list type=DISABLED [2018-09-18 16:40:44,167 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-09-18 16:40:44,168 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-09-18 16:40:44,168 INFO L133 SettingsManager]: * Congruence Domain=false [2018-09-18 16:40:44,169 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-09-18 16:40:44,169 INFO L133 SettingsManager]: * Octagon Domain=false [2018-09-18 16:40:44,169 INFO L133 SettingsManager]: * Abstract domain=IntervalDomain [2018-09-18 16:40:44,169 INFO L133 SettingsManager]: * Log string format=TERM [2018-09-18 16:40:44,169 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-09-18 16:40:44,170 INFO L133 SettingsManager]: * Parallel states before merging=1 [2018-09-18 16:40:44,171 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-09-18 16:40:44,171 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-09-18 16:40:44,171 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-09-18 16:40:44,171 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-09-18 16:40:44,171 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-09-18 16:40:44,172 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-09-18 16:40:44,172 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-09-18 16:40:44,172 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-09-18 16:40:44,172 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-09-18 16:40:44,172 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-09-18 16:40:44,173 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-09-18 16:40:44,173 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-09-18 16:40:44,173 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-09-18 16:40:44,173 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-09-18 16:40:44,173 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-09-18 16:40:44,174 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-09-18 16:40:44,174 INFO L133 SettingsManager]: * Trace refinement strategy=TOOTHLESS_TAIPAN [2018-09-18 16:40:44,174 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-09-18 16:40:44,174 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-09-18 16:40:44,174 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-09-18 16:40:44,175 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-09-18 16:40:44,175 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-09-18 16:40:44,240 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-09-18 16:40:44,253 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-09-18 16:40:44,257 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-09-18 16:40:44,259 INFO L271 PluginConnector]: Initializing CDTParser... [2018-09-18 16:40:44,259 INFO L276 PluginConnector]: CDTParser initialized [2018-09-18 16:40:44,260 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i [2018-09-18 16:40:44,625 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ce9c1396/43ad026c6fab41f2ab740418adb48e30/FLAG57e5dfa56 [2018-09-18 16:40:44,814 INFO L277 CDTParser]: Found 1 translation units. [2018-09-18 16:40:44,815 INFO L159 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/string_true-unreach-call_true-termination.i [2018-09-18 16:40:44,823 INFO L325 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ce9c1396/43ad026c6fab41f2ab740418adb48e30/FLAG57e5dfa56 [2018-09-18 16:40:44,844 INFO L333 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ce9c1396/43ad026c6fab41f2ab740418adb48e30 [2018-09-18 16:40:44,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-09-18 16:40:44,856 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-09-18 16:40:44,857 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-09-18 16:40:44,857 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-09-18 16:40:44,864 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-09-18 16:40:44,865 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 04:40:44" (1/1) ... [2018-09-18 16:40:44,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75d6e4c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:44, skipping insertion in model container [2018-09-18 16:40:44,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.09 04:40:44" (1/1) ... [2018-09-18 16:40:44,881 INFO L160 ieTranslatorObserver]: Starting translation in SV-COMP mode [2018-09-18 16:40:45,098 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 16:40:45,115 INFO L424 MainDispatcher]: Starting main dispatcher in SV-COMP mode [2018-09-18 16:40:45,128 INFO L170 PostProcessor]: Settings: Checked method=main [2018-09-18 16:40:45,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:45 WrapperNode [2018-09-18 16:40:45,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-09-18 16:40:45,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-09-18 16:40:45,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-09-18 16:40:45,147 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-09-18 16:40:45,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:45" (1/1) ... [2018-09-18 16:40:45,166 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:45" (1/1) ... [2018-09-18 16:40:45,173 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-09-18 16:40:45,173 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-09-18 16:40:45,174 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-09-18 16:40:45,174 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-09-18 16:40:45,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:45" (1/1) ... [2018-09-18 16:40:45,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:45" (1/1) ... [2018-09-18 16:40:45,190 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:45" (1/1) ... [2018-09-18 16:40:45,191 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:45" (1/1) ... [2018-09-18 16:40:45,194 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:45" (1/1) ... [2018-09-18 16:40:45,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:45" (1/1) ... [2018-09-18 16:40:45,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:45" (1/1) ... [2018-09-18 16:40:45,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-09-18 16:40:45,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-09-18 16:40:45,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-09-18 16:40:45,222 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-09-18 16:40:45,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.09 04:40:45" (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 [2018-09-18 16:40:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-09-18 16:40:45,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-09-18 16:40:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-09-18 16:40:45,354 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-09-18 16:40:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-09-18 16:40:45,355 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-09-18 16:40:45,355 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-09-18 16:40:45,355 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-09-18 16:40:45,815 INFO L356 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-09-18 16:40:45,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 04:40:45 BoogieIcfgContainer [2018-09-18 16:40:45,816 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-09-18 16:40:45,817 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2018-09-18 16:40:45,817 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2018-09-18 16:40:45,817 INFO L276 PluginConnector]: Abstract Interpretation initialized [2018-09-18 16:40:45,818 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.09 04:40:45" (1/1) ... [2018-09-18 16:40:45,850 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=1) [2018-09-18 16:40:46,219 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-09-18 16:40:46,254 INFO L272 AbstractInterpreter]: Visited 49 different actions 409 times. Merged at 23 different actions 163 times. Widened at 8 different actions 18 times. Found 55 fixpoints after 12 different actions. Largest state had 16 variables. [2018-09-18 16:40:46,256 INFO L132 PluginConnector]: ------------------------ END Abstract Interpretation---------------------------- [2018-09-18 16:40:46,258 INFO L168 Benchmark]: Toolchain (without parser) took 1403.59 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 675.8 MB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -673.8 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2018-09-18 16:40:46,260 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 16:40:46,261 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-09-18 16:40:46,263 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.77 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 16:40:46,264 INFO L168 Benchmark]: Boogie Preprocessor took 47.72 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-09-18 16:40:46,264 INFO L168 Benchmark]: RCFGBuilder took 594.72 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 675.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -712.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. [2018-09-18 16:40:46,266 INFO L168 Benchmark]: Abstract Interpretation took 439.75 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. [2018-09-18 16:40:46,274 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 288.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 26.77 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 47.72 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 594.72 ms. Allocated memory was 1.5 GB in the beginning and 2.2 GB in the end (delta: 675.8 MB). Free memory was 1.4 GB in the beginning and 2.1 GB in the end (delta: -712.4 MB). Peak memory consumption was 26.5 MB. Max. memory is 7.1 GB. * Abstract Interpretation took 439.75 ms. Allocated memory is still 2.2 GB. Free memory was 2.1 GB in the beginning and 2.0 GB in the end (delta: 28.1 MB). Peak memory consumption was 28.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2: - UnprovableResult [Line: 6]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: abstract domain could reach this error location. Possible FailurePath: [L16] char string_A[5], string_B[5]; [L17] int i, j, nc_A, nc_B, found=0; [L17] int i, j, nc_A, nc_B, found=0; [L19] i=0 [L19] COND TRUE i<5 [L20] string_A[i]=__VERIFIER_nondet_char() [L19] i++ [L19] i++ [L19] COND TRUE i<5 [L20] string_A[i]=__VERIFIER_nondet_char() [L19] i++ [L19] i++ [L19] COND TRUE i<5 [L20] string_A[i]=__VERIFIER_nondet_char() [L19] i++ [L19] i++ [L19] COND TRUE i<5 [L20] string_A[i]=__VERIFIER_nondet_char() [L19] i++ [L19] i++ [L19] COND TRUE i<5 [L20] string_A[i]=__VERIFIER_nondet_char() [L19] i++ [L19] i++ [L19] COND FALSE !(i<5) [L21] COND FALSE !(!(string_A[5 -1]=='\0')) [L23] i=0 [L23] COND TRUE i<5 [L24] string_B[i]=__VERIFIER_nondet_char() [L23] i++ [L23] i++ [L23] COND TRUE i<5 [L24] string_B[i]=__VERIFIER_nondet_char() [L23] i++ [L23] i++ [L23] COND TRUE i<5 [L24] string_B[i]=__VERIFIER_nondet_char() [L23] i++ [L23] i++ [L23] COND TRUE i<5 [L24] string_B[i]=__VERIFIER_nondet_char() [L23] i++ [L23] i++ [L23] COND TRUE i<5 [L24] string_B[i]=__VERIFIER_nondet_char() [L23] i++ [L23] i++ [L23] COND FALSE !(i<5) [L25] COND FALSE !(!(string_B[5 -1]=='\0')) [L27] nc_A = 0 [L28] COND FALSE !(string_A[nc_A]!='\0') [L31] nc_B = 0 [L32] COND FALSE !(string_B[nc_B]!='\0') [L35] COND FALSE !(!(nc_B >= nc_A)) [L38] EXPR j=0 [L38] i=j=0 [L39] COND FALSE !((inc_B-1) [L55] CALL __VERIFIER_assert(found == 0 || found == 1) [L5] COND TRUE !(cond) [L6] __VERIFIER_error() RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Written .csv to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/csv/string_true-unreach-call_true-termination.i_svcomp-Reach-64bit-ToothlessTaipan_INT-OldIcfg.epf_AbstractInterpretationCInline.xml/Csv-Benchmark-0-2018-09-18_16-40-46-292.csv Received shutdown request...