/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf -tc ../../../trunk/examples/toolchains/SifaC.xml --sifa.abstract.domain EqDomain -i ../sv-benchmarks/c/loops-crafted-1/in-de51.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 16:52:41,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 16:52:41,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 16:52:41,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 16:52:41,688 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 16:52:41,691 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 16:52:41,694 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 16:52:41,697 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 16:52:41,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 16:52:41,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 16:52:41,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 16:52:41,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 16:52:41,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 16:52:41,709 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 16:52:41,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 16:52:41,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 16:52:41,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 16:52:41,711 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 16:52:41,712 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 16:52:41,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 16:52:41,715 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 16:52:41,717 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 16:52:41,719 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 16:52:41,720 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 16:52:41,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 16:52:41,731 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 16:52:41,732 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 16:52:41,733 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 16:52:41,733 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 16:52:41,734 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 16:52:41,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 16:52:41,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 16:52:41,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 16:52:41,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 16:52:41,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 16:52:41,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 16:52:41,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 16:52:41,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 16:52:41,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 16:52:41,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 16:52:41,739 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 16:52:41,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-32bit-Taipan_Default.epf [2023-03-31 16:52:41,769 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 16:52:41,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 16:52:41,770 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 16:52:41,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 16:52:41,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 16:52:41,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 16:52:41,771 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 16:52:41,771 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 16:52:41,771 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 16:52:41,771 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 16:52:41,772 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 16:52:41,772 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 16:52:41,772 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 16:52:41,773 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 16:52:41,773 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 16:52:41,773 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 16:52:41,773 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 16:52:41,773 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 16:52:41,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 16:52:41,774 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 16:52:41,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 16:52:41,774 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 16:52:41,774 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 16:52:41,774 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 16:52:41,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 16:52:41,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 16:52:41,775 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 16:52:41,775 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 16:52:41,776 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 16:52:41,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 16:52:41,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 16:52:41,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 16:52:41,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 16:52:41,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 16:52:41,776 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 16:52:41,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 16:52:41,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 16:52:41,777 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 16:52:41,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 16:52:41,777 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 16:52:41,777 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 16:52:41,777 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> EqDomain [2023-03-31 16:52:42,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 16:52:42,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 16:52:42,045 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 16:52:42,046 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 16:52:42,047 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 16:52:42,048 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/in-de51.c [2023-03-31 16:52:43,330 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 16:52:43,510 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 16:52:43,511 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/in-de51.c [2023-03-31 16:52:43,516 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/472f286b0/93ec3b2045484282b1ae3ed76643da1b/FLAG557816070 [2023-03-31 16:52:43,531 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/472f286b0/93ec3b2045484282b1ae3ed76643da1b [2023-03-31 16:52:43,534 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 16:52:43,535 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 16:52:43,537 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 16:52:43,537 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 16:52:43,540 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 16:52:43,541 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:52:43" (1/1) ... [2023-03-31 16:52:43,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@200cb774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:52:43, skipping insertion in model container [2023-03-31 16:52:43,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 04:52:43" (1/1) ... [2023-03-31 16:52:43,548 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 16:52:43,559 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 16:52:43,695 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/in-de51.c[368,381] [2023-03-31 16:52:43,713 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 16:52:43,723 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 16:52:43,733 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/in-de51.c[368,381] [2023-03-31 16:52:43,740 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 16:52:43,755 INFO L208 MainTranslator]: Completed translation [2023-03-31 16:52:43,756 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:52:43 WrapperNode [2023-03-31 16:52:43,756 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 16:52:43,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 16:52:43,757 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 16:52:43,757 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 16:52:43,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:52:43" (1/1) ... [2023-03-31 16:52:43,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:52:43" (1/1) ... [2023-03-31 16:52:43,773 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:52:43" (1/1) ... [2023-03-31 16:52:43,773 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:52:43" (1/1) ... [2023-03-31 16:52:43,784 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:52:43" (1/1) ... [2023-03-31 16:52:43,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:52:43" (1/1) ... [2023-03-31 16:52:43,794 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:52:43" (1/1) ... [2023-03-31 16:52:43,795 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:52:43" (1/1) ... [2023-03-31 16:52:43,800 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 16:52:43,801 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 16:52:43,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 16:52:43,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 16:52:43,802 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 04:52:43" (1/1) ... [2023-03-31 16:52:43,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 16:52:43,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 16:52:43,833 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-31 16:52:43,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-31 16:52:43,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 16:52:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 16:52:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 16:52:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 16:52:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 16:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 16:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 16:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 16:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 16:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uint [2023-03-31 16:52:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 16:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 16:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 16:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 16:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 16:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 16:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 16:52:43,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 16:52:43,934 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 16:52:43,936 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 16:52:44,096 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 16:52:44,119 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 16:52:44,119 INFO L302 CfgBuilder]: Removed 5 assume(true) statements. [2023-03-31 16:52:44,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:52:44 BoogieIcfgContainer [2023-03-31 16:52:44,122 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 16:52:44,122 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 16:52:44,123 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 16:52:44,123 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 16:52:44,124 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 04:52:44" (1/1) ... [2023-03-31 16:52:44,124 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=EqDomain ♦ Max. Parallel Octagon=2 ♦ Fluid=SizeLimitFluid ♦ Max. Parallel Explicit Values=2 ♦ Max. Parallel Intervals=2 ♦ Loop Summarizer=FixpointLoopSummarizer ♦ CompoundDomain Intern Domains=ExplicitValueDomain;IntervalDomain ♦ Call Summarizer=TopInputCallSummarizer ♦ Xnf Conversion Technique=BOTTOM_UP_WITH_LOCAL_SIMPLIFICATION ♦ SizeLimitFluid Max. Disjunctions=8 ♦ Simplification Technique=POLY_PAC ♦ Max. Parallel Equality=2 ♦ SizeLimitFluid Max. DAG Size=-1 [2023-03-31 16:52:44,168 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 16:52:44,168 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 16:52:44,172 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 16:52:44,176 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 16:52:44,177 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 16:52:44,297 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 36 for LOIs [2023-03-31 16:52:44,921 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 62 for LOIs [2023-03-31 16:52:44,966 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 16:52:44,984 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 16:52:44,984 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 16:52:44,985 INFO L158 Benchmark]: Toolchain (without parser) took 1449.68ms. Allocated memory is still 319.8MB. Free memory was 274.1MB in the beginning and 166.4MB in the end (delta: 107.7MB). Peak memory consumption was 109.2MB. Max. memory is 8.0GB. [2023-03-31 16:52:44,986 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 207.6MB. Free memory was 159.7MB in the beginning and 159.5MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 16:52:44,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.32ms. Allocated memory is still 319.8MB. Free memory was 273.7MB in the beginning and 263.9MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-03-31 16:52:44,987 INFO L158 Benchmark]: Boogie Preprocessor took 42.76ms. Allocated memory is still 319.8MB. Free memory was 263.9MB in the beginning and 262.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 16:52:44,991 INFO L158 Benchmark]: RCFGBuilder took 321.19ms. Allocated memory is still 319.8MB. Free memory was 262.2MB in the beginning and 249.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2023-03-31 16:52:44,992 INFO L158 Benchmark]: Sifa took 861.59ms. Allocated memory is still 319.8MB. Free memory was 249.6MB in the beginning and 166.4MB in the end (delta: 83.2MB). Peak memory consumption was 84.1MB. Max. memory is 8.0GB. [2023-03-31 16:52:44,996 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 207.6MB. Free memory was 159.7MB in the beginning and 159.5MB in the end (delta: 160.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 219.32ms. Allocated memory is still 319.8MB. Free memory was 273.7MB in the beginning and 263.9MB in the end (delta: 9.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.76ms. Allocated memory is still 319.8MB. Free memory was 263.9MB in the beginning and 262.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 321.19ms. Allocated memory is still 319.8MB. Free memory was 262.2MB in the beginning and 249.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Sifa took 861.59ms. Allocated memory is still 319.8MB. Free memory was 249.6MB in the beginning and 166.4MB in the end (delta: 83.2MB). Peak memory consumption was 84.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 0.8s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 0, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 22, TOOLS_POST_TIME: 0.3s, TOOLS_POST_CALL_APPLICATIONS: 3, TOOLS_POST_CALL_TIME: 0.1s, TOOLS_POST_RETURN_APPLICATIONS: 1, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 26, TOOLS_QUANTIFIERELIM_TIME: 0.4s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 56, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 0, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 7, DOMAIN_WIDEN_TIME: 0.3s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 12, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 0, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 5, LOOP_SUMMARIZER_CACHE_MISSES: 5, LOOP_SUMMARIZER_OVERALL_TIME: 0.5s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.5s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 12, CALL_SUMMARIZER_APPLICATIONS: 1, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, 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: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 76, DAG_COMPRESSION_RETAINED_NODES: 45 - UnprovableResult [Line: 7]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Over-approximation of reachable states at this location is 35#(and (exists ((v_main_~z~0_BEFORE_CALL_1 Int)) (<= (mod v_main_~z~0_BEFORE_CALL_1 4294967296) 0)) (= (select |#length| 3) 12) (not (= |#length| (select |#memory_int| 1))) (= 2 (select |#length| 1)) (= (select |#valid| 3) 1) (not (= |#length| |#valid|)) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (exists ((v_main_~n~0_BEFORE_CALL_1 Int) (v_main_~x~0_BEFORE_CALL_1 Int)) (not (= (mod v_main_~n~0_BEFORE_CALL_1 4294967296) (mod v_main_~x~0_BEFORE_CALL_1 4294967296)))) (not (= |#StackHeapBarrier| 0)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (not (= |#valid| (select |#memory_int| 1))) (= (select (select |#memory_int| 1) 0) 48) (= 10 (select |#length| 2)) (= (select (select |#memory_int| 1) 1) 0) (= |#NULL.base| 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 16:52:45,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...