/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 IntervalDomain -i ../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 06:11:30,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 06:11:30,559 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 06:11:30,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 06:11:30,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 06:11:30,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 06:11:30,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 06:11:30,604 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 06:11:30,606 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 06:11:30,610 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 06:11:30,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 06:11:30,612 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 06:11:30,613 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 06:11:30,615 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 06:11:30,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 06:11:30,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 06:11:30,619 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 06:11:30,620 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 06:11:30,621 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 06:11:30,626 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 06:11:30,627 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 06:11:30,629 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 06:11:30,629 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 06:11:30,630 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 06:11:30,638 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 06:11:30,638 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 06:11:30,638 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 06:11:30,640 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 06:11:30,640 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 06:11:30,641 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 06:11:30,641 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 06:11:30,642 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 06:11:30,643 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 06:11:30,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 06:11:30,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 06:11:30,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 06:11:30,645 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 06:11:30,645 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 06:11:30,645 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 06:11:30,646 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 06:11:30,647 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 06:11:30,648 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 06:11:30,680 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 06:11:30,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 06:11:30,681 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 06:11:30,681 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 06:11:30,697 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 06:11:30,697 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 06:11:30,698 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 06:11:30,698 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 06:11:30,698 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 06:11:30,698 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 06:11:30,699 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 06:11:30,699 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 06:11:30,699 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 06:11:30,699 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 06:11:30,699 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 06:11:30,700 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 06:11:30,700 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 06:11:30,700 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 06:11:30,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 06:11:30,701 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 06:11:30,701 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 06:11:30,701 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 06:11:30,701 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 06:11:30,701 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 06:11:30,701 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 06:11:30,702 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 06:11:30,702 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 06:11:30,702 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 06:11:30,702 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 06:11:30,702 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 06:11:30,702 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 06:11:30,703 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 06:11:30,703 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 06:11:30,703 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 06:11:30,703 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 06:11:30,703 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 06:11:30,703 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 06:11:30,703 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 06:11:30,704 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 06:11:30,704 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 06:11:30,704 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 06:11:30,704 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 06:11:31,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 06:11:31,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 06:11:31,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 06:11:31,172 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 06:11:31,172 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 06:11:31,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound2.c [2023-03-31 06:11:33,038 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 06:11:33,237 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 06:11:33,237 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/prod4br-ll_unwindbound2.c [2023-03-31 06:11:33,245 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c987e0b6/8ea89439c1084fd2a565166808ed46d7/FLAG0fa00641a [2023-03-31 06:11:33,264 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1c987e0b6/8ea89439c1084fd2a565166808ed46d7 [2023-03-31 06:11:33,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 06:11:33,269 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 06:11:33,272 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 06:11:33,272 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 06:11:33,275 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 06:11:33,276 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 06:11:33" (1/1) ... [2023-03-31 06:11:33,278 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a2f12d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:11:33, skipping insertion in model container [2023-03-31 06:11:33,278 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 06:11:33" (1/1) ... [2023-03-31 06:11:33,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 06:11:33,299 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 06:11:33,456 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/nla-digbench-scaling/prod4br-ll_unwindbound2.c[524,537] [2023-03-31 06:11:33,492 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 06:11:33,503 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 06:11:33,517 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/nla-digbench-scaling/prod4br-ll_unwindbound2.c[524,537] [2023-03-31 06:11:33,539 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 06:11:33,554 INFO L208 MainTranslator]: Completed translation [2023-03-31 06:11:33,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:11:33 WrapperNode [2023-03-31 06:11:33,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 06:11:33,556 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 06:11:33,556 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 06:11:33,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 06:11:33,567 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:11:33" (1/1) ... [2023-03-31 06:11:33,567 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:11:33" (1/1) ... [2023-03-31 06:11:33,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:11:33" (1/1) ... [2023-03-31 06:11:33,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:11:33" (1/1) ... [2023-03-31 06:11:33,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:11:33" (1/1) ... [2023-03-31 06:11:33,595 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:11:33" (1/1) ... [2023-03-31 06:11:33,602 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:11:33" (1/1) ... [2023-03-31 06:11:33,603 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:11:33" (1/1) ... [2023-03-31 06:11:33,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 06:11:33,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 06:11:33,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 06:11:33,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 06:11:33,606 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:11:33" (1/1) ... [2023-03-31 06:11:33,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 06:11:33,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 06:11:33,634 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 06:11:33,651 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 06:11:33,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 06:11:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 06:11:33,676 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 06:11:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 06:11:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 06:11:33,677 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 06:11:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 06:11:33,677 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 06:11:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 06:11:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 06:11:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 06:11:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 06:11:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 06:11:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 06:11:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 06:11:33,678 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 06:11:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 06:11:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 06:11:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 06:11:33,679 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 06:11:33,749 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 06:11:33,751 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 06:11:33,950 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 06:11:34,072 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 06:11:34,072 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 06:11:34,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 06:11:34 BoogieIcfgContainer [2023-03-31 06:11:34,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 06:11:34,075 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 06:11:34,075 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 06:11:34,075 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 06:11:34,076 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 06:11:34" (1/1) ... [2023-03-31 06:11:34,076 INFO L79 SifaObserver]: LogSizeWrapperFluid Intern Fluid=SizeLimitFluid ♦ Abstract Domain=IntervalDomain ♦ 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 06:11:34,104 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 06:11:34,104 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 06:11:34,108 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 06:11:34,113 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 06:11:34,114 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 06:11:34,248 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 40 for LOIs [2023-03-31 06:11:35,820 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 1 for LOIs [2023-03-31 06:11:35,822 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 06:11:35,833 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 06:11:35,834 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 06:11:35,835 INFO L158 Benchmark]: Toolchain (without parser) took 2566.19ms. Allocated memory was 234.9MB in the beginning and 282.1MB in the end (delta: 47.2MB). Free memory was 186.6MB in the beginning and 207.6MB in the end (delta: -20.9MB). Peak memory consumption was 26.8MB. Max. memory is 8.0GB. [2023-03-31 06:11:35,835 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 167.8MB. Free memory was 118.2MB in the beginning and 118.1MB in the end (delta: 174.8kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 06:11:35,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.37ms. Allocated memory is still 234.9MB. Free memory was 186.1MB in the beginning and 175.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 06:11:35,837 INFO L158 Benchmark]: Boogie Preprocessor took 48.48ms. Allocated memory is still 234.9MB. Free memory was 175.6MB in the beginning and 174.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 06:11:35,841 INFO L158 Benchmark]: RCFGBuilder took 468.90ms. Allocated memory is still 234.9MB. Free memory was 174.1MB in the beginning and 155.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2023-03-31 06:11:35,841 INFO L158 Benchmark]: Sifa took 1759.19ms. Allocated memory was 234.9MB in the beginning and 282.1MB in the end (delta: 47.2MB). Free memory was 155.2MB in the beginning and 207.6MB in the end (delta: -52.4MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 06:11:35,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 167.8MB. Free memory was 118.2MB in the beginning and 118.1MB in the end (delta: 174.8kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 283.37ms. Allocated memory is still 234.9MB. Free memory was 186.1MB in the beginning and 175.6MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 48.48ms. Allocated memory is still 234.9MB. Free memory was 175.6MB in the beginning and 174.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 468.90ms. Allocated memory is still 234.9MB. Free memory was 174.1MB in the beginning and 155.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * Sifa took 1759.19ms. Allocated memory was 234.9MB in the beginning and 282.1MB in the end (delta: 47.2MB). Free memory was 155.2MB in the beginning and 207.6MB in the end (delta: -52.4MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 1.7s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 9, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 26, TOOLS_POST_TIME: 1.0s, TOOLS_POST_CALL_APPLICATIONS: 10, TOOLS_POST_CALL_TIME: 0.3s, TOOLS_POST_RETURN_APPLICATIONS: 6, TOOLS_POST_RETURN_TIME: 0.2s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 42, TOOLS_QUANTIFIERELIM_TIME: 1.5s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.3s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 45, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 8, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 9, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 1.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 1.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 6, CALL_SUMMARIZER_CACHE_MISSES: 3, CALL_SUMMARIZER_OVERALL_TIME: 0.1s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.1s, 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: 156, DAG_COMPRESSION_RETAINED_NODES: 47 - UnprovableResult [Line: 14]: 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 53#(and (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 06:11:35,869 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...