java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AbstractInterpretationC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-invgen/string_concat-noarr.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-11 16:12:52,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-11 16:12:52,426 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-11 16:12:52,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-11 16:12:52,444 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-11 16:12:52,445 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-11 16:12:52,447 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-11 16:12:52,460 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-11 16:12:52,462 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-11 16:12:52,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-11 16:12:52,466 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-11 16:12:52,468 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-11 16:12:52,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-11 16:12:52,471 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-11 16:12:52,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-11 16:12:52,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-11 16:12:52,477 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-11 16:12:52,478 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-11 16:12:52,482 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-11 16:12:52,485 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-11 16:12:52,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-11 16:12:52,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-11 16:12:52,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-11 16:12:52,493 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-11 16:12:52,495 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-11 16:12:52,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-11 16:12:52,496 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-11 16:12:52,498 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-11 16:12:52,499 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-11 16:12:52,500 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-11 16:12:52,501 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-11 16:12:52,503 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-11 16:12:52,503 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-11 16:12:52,504 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-11 16:12:52,506 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-11 16:12:52,506 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-11 16:12:52,507 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-11 16:12:52,507 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-11 16:12:52,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-11 16:12:52,509 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-11 16:12:52,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-11 16:12:52,510 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-11 16:12:52,538 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-11 16:12:52,538 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-11 16:12:52,539 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-11 16:12:52,539 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-11 16:12:52,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-11 16:12:52,540 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-11 16:12:52,540 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-11 16:12:52,541 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-11 16:12:52,541 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-11 16:12:52,541 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-11 16:12:52,543 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-11 16:12:52,543 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-11 16:12:52,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-11 16:12:52,544 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-11 16:12:52,544 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-11 16:12:52,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-11 16:12:52,545 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-11 16:12:52,545 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-11 16:12:52,545 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-11 16:12:52,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-11 16:12:52,546 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-11 16:12:52,546 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-11 16:12:52,546 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-11 16:12:52,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-11 16:12:52,547 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-11 16:12:52,547 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-11 16:12:52,547 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-11 16:12:52,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-11 16:12:52,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-11 16:12:52,548 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-11 16:12:52,605 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-11 16:12:52,621 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-11 16:12:52,625 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-11 16:12:52,627 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-11 16:12:52,627 INFO L275 PluginConnector]: CDTParser initialized [2019-09-11 16:12:52,628 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/string_concat-noarr.i [2019-09-11 16:12:52,685 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d60bc5106/1392f0d24e814e6ea9d500da708cecb8/FLAG5a4d8419b [2019-09-11 16:12:53,132 INFO L306 CDTParser]: Found 1 translation units. [2019-09-11 16:12:53,132 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/string_concat-noarr.i [2019-09-11 16:12:53,139 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d60bc5106/1392f0d24e814e6ea9d500da708cecb8/FLAG5a4d8419b [2019-09-11 16:12:53,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d60bc5106/1392f0d24e814e6ea9d500da708cecb8 [2019-09-11 16:12:53,555 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-11 16:12:53,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-11 16:12:53,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-11 16:12:53,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-11 16:12:53,561 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-11 16:12:53,562 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:12:53" (1/1) ... [2019-09-11 16:12:53,564 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fa118f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:53, skipping insertion in model container [2019-09-11 16:12:53,564 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 04:12:53" (1/1) ... [2019-09-11 16:12:53,572 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-11 16:12:53,589 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-11 16:12:53,730 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:12:53,734 INFO L188 MainTranslator]: Completed pre-run [2019-09-11 16:12:53,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-11 16:12:53,767 INFO L192 MainTranslator]: Completed translation [2019-09-11 16:12:53,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:53 WrapperNode [2019-09-11 16:12:53,768 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-11 16:12:53,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-11 16:12:53,769 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-11 16:12:53,769 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-11 16:12:53,873 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:53" (1/1) ... [2019-09-11 16:12:53,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:53" (1/1) ... [2019-09-11 16:12:53,877 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:53" (1/1) ... [2019-09-11 16:12:53,878 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:53" (1/1) ... [2019-09-11 16:12:53,881 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:53" (1/1) ... [2019-09-11 16:12:53,886 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:53" (1/1) ... [2019-09-11 16:12:53,887 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:53" (1/1) ... [2019-09-11 16:12:53,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-11 16:12:53,889 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-11 16:12:53,889 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-11 16:12:53,889 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-11 16:12:53,890 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 04:12:53" (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 [2019-09-11 16:12:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-11 16:12:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-11 16:12:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-11 16:12:53,942 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-11 16:12:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-11 16:12:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-11 16:12:53,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-11 16:12:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-11 16:12:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-11 16:12:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-11 16:12:53,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-11 16:12:54,133 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-11 16:12:54,133 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-09-11 16:12:54,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:12:54 BoogieIcfgContainer [2019-09-11 16:12:54,135 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-11 16:12:54,136 INFO L113 PluginConnector]: ------------------------Abstract Interpretation---------------------------- [2019-09-11 16:12:54,136 INFO L271 PluginConnector]: Initializing Abstract Interpretation... [2019-09-11 16:12:54,136 INFO L275 PluginConnector]: Abstract Interpretation initialized [2019-09-11 16:12:54,137 INFO L185 PluginConnector]: Executing the observer AbstractInterpretationRcfgObserver from plugin Abstract Interpretation for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 04:12:54" (1/1) ... [2019-09-11 16:12:54,171 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2)