/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/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 06:44:57,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 06:44:57,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 06:44:57,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 06:44:57,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 06:44:57,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 06:44:57,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 06:44:57,592 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 06:44:57,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 06:44:57,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 06:44:57,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 06:44:57,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 06:44:57,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 06:44:57,603 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 06:44:57,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 06:44:57,604 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 06:44:57,605 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 06:44:57,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 06:44:57,606 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 06:44:57,608 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 06:44:57,609 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 06:44:57,611 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 06:44:57,612 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 06:44:57,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 06:44:57,615 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 06:44:57,615 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 06:44:57,615 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 06:44:57,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 06:44:57,616 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 06:44:57,617 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 06:44:57,617 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 06:44:57,617 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 06:44:57,618 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 06:44:57,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 06:44:57,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 06:44:57,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 06:44:57,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 06:44:57,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 06:44:57,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 06:44:57,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 06:44:57,621 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 06:44:57,622 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 06:44:57,638 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 06:44:57,638 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 06:44:57,638 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 06:44:57,638 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 06:44:57,639 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 06:44:57,639 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 06:44:57,639 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 06:44:57,639 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 06:44:57,639 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 06:44:57,640 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 06:44:57,640 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 06:44:57,640 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 06:44:57,640 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 06:44:57,640 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 06:44:57,640 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 06:44:57,646 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 06:44:57,647 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 06:44:57,647 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 06:44:57,648 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 06:44:57,648 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 06:44:57,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 06:44:57,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 06:44:57,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 06:44:57,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 06:44:57,649 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 06:44:57,649 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 06:44:57,649 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 06:44:57,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 06:44:57,649 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 06:44:57,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 06:44:57,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 06:44:57,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 06:44:57,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 06:44:57,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 06:44:57,650 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 06:44:57,650 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 06:44:57,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 06:44:57,651 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 06:44:57,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 06:44:57,651 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 06:44:57,651 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 06:44:57,651 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 06:44:57,827 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 06:44:57,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 06:44:57,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 06:44:57,855 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 06:44:57,856 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 06:44:57,857 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2023-03-31 06:44:58,906 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 06:44:59,087 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 06:44:59,087 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c [2023-03-31 06:44:59,093 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f747546a/f1a690f5afaf41089a07f5a463313b26/FLAGeb327bec2 [2023-03-31 06:44:59,111 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0f747546a/f1a690f5afaf41089a07f5a463313b26 [2023-03-31 06:44:59,113 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 06:44:59,114 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 06:44:59,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 06:44:59,115 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 06:44:59,120 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 06:44:59,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 06:44:59" (1/1) ... [2023-03-31 06:44:59,121 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9b81f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:44:59, skipping insertion in model container [2023-03-31 06:44:59,121 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 06:44:59" (1/1) ... [2023-03-31 06:44:59,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 06:44:59,157 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 06:44:59,292 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/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c[6844,6857] [2023-03-31 06:44:59,296 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 06:44:59,305 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 06:44:59,336 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/seq-mthreaded/pals_lcr-var-start-time.3.1.ufo.BOUNDED-6.pals.c[6844,6857] [2023-03-31 06:44:59,336 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 06:44:59,347 INFO L208 MainTranslator]: Completed translation [2023-03-31 06:44:59,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:44:59 WrapperNode [2023-03-31 06:44:59,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 06:44:59,348 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 06:44:59,348 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 06:44:59,348 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 06:44:59,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:44:59" (1/1) ... [2023-03-31 06:44:59,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:44:59" (1/1) ... [2023-03-31 06:44:59,363 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:44:59" (1/1) ... [2023-03-31 06:44:59,363 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:44:59" (1/1) ... [2023-03-31 06:44:59,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:44:59" (1/1) ... [2023-03-31 06:44:59,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:44:59" (1/1) ... [2023-03-31 06:44:59,382 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:44:59" (1/1) ... [2023-03-31 06:44:59,383 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:44:59" (1/1) ... [2023-03-31 06:44:59,385 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 06:44:59,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 06:44:59,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 06:44:59,386 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 06:44:59,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 06:44:59" (1/1) ... [2023-03-31 06:44:59,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 06:44:59,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 06:44:59,425 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 06:44:59,432 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 06:44:59,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 06:44:59,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 06:44:59,456 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 06:44:59,459 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2023-03-31 06:44:59,459 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2023-03-31 06:44:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2023-03-31 06:44:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2023-03-31 06:44:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2023-03-31 06:44:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 06:44:59,460 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2023-03-31 06:44:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 06:44:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 06:44:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 06:44:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 06:44:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 06:44:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2023-03-31 06:44:59,460 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure read [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure write [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure init [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure check [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 06:44:59,461 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 06:44:59,462 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 06:44:59,530 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 06:44:59,532 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 06:44:59,841 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 06:45:00,085 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 06:45:00,086 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 06:45:00,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 06:45:00 BoogieIcfgContainer [2023-03-31 06:45:00,089 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 06:45:00,091 INFO L113 PluginConnector]: ------------------------Sifa---------------------------- [2023-03-31 06:45:00,091 INFO L271 PluginConnector]: Initializing Sifa... [2023-03-31 06:45:00,091 INFO L275 PluginConnector]: Sifa initialized [2023-03-31 06:45:00,092 INFO L185 PluginConnector]: Executing the observer SifaObserver from plugin Sifa for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 06:45:00" (1/1) ... [2023-03-31 06:45:00,092 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 06:45:00,124 INFO L159 IcfgInterpreter]: Started Sifa with 1 locations of interest [2023-03-31 06:45:00,124 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 06:45:00,128 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 06:45:00,131 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 06:45:00,132 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 06:45:00,526 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 133 for LOIs [2023-03-31 06:45:17,895 INFO L197 IcfgInterpreter]: Interpreting procedure assert with input of size 194 for LOIs [2023-03-31 06:45:18,500 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 06:45:18,523 INFO L104 SifaObserver]: ✘ Some error locations might be reachable, see reported results. [2023-03-31 06:45:18,524 INFO L132 PluginConnector]: ------------------------ END Sifa---------------------------- [2023-03-31 06:45:18,525 INFO L158 Benchmark]: Toolchain (without parser) took 19410.80ms. Allocated memory was 282.1MB in the beginning and 843.1MB in the end (delta: 561.0MB). Free memory was 237.6MB in the beginning and 540.5MB in the end (delta: -302.9MB). Peak memory consumption was 258.9MB. Max. memory is 8.0GB. [2023-03-31 06:45:18,525 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 139.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 06:45:18,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 232.89ms. Allocated memory is still 282.1MB. Free memory was 237.4MB in the beginning and 223.9MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. [2023-03-31 06:45:18,526 INFO L158 Benchmark]: Boogie Preprocessor took 37.12ms. Allocated memory is still 282.1MB. Free memory was 223.9MB in the beginning and 221.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 06:45:18,526 INFO L158 Benchmark]: RCFGBuilder took 703.62ms. Allocated memory is still 282.1MB. Free memory was 221.6MB in the beginning and 225.7MB in the end (delta: -4.0MB). Peak memory consumption was 45.2MB. Max. memory is 8.0GB. [2023-03-31 06:45:18,527 INFO L158 Benchmark]: Sifa took 18432.68ms. Allocated memory was 282.1MB in the beginning and 843.1MB in the end (delta: 561.0MB). Free memory was 225.7MB in the beginning and 540.5MB in the end (delta: -314.8MB). Peak memory consumption was 246.1MB. Max. memory is 8.0GB. [2023-03-31 06:45:18,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 139.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 232.89ms. Allocated memory is still 282.1MB. Free memory was 237.4MB in the beginning and 223.9MB in the end (delta: 13.5MB). Peak memory consumption was 13.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 37.12ms. Allocated memory is still 282.1MB. Free memory was 223.9MB in the beginning and 221.9MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 703.62ms. Allocated memory is still 282.1MB. Free memory was 221.6MB in the beginning and 225.7MB in the end (delta: -4.0MB). Peak memory consumption was 45.2MB. Max. memory is 8.0GB. * Sifa took 18432.68ms. Allocated memory was 282.1MB in the beginning and 843.1MB in the end (delta: 561.0MB). Free memory was 225.7MB in the beginning and 540.5MB in the end (delta: -314.8MB). Peak memory consumption was 246.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.sifa: - StatisticsResult: Symbolic Interpretation with Fluid Abstractions OVERALL_TIME: 18.4s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 3, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 1, DAG_INTERPRETER_EARLY_EXITS: 0, TOOLS_POST_APPLICATIONS: 27, TOOLS_POST_TIME: 6.0s, TOOLS_POST_CALL_APPLICATIONS: 18, TOOLS_POST_CALL_TIME: 3.8s, TOOLS_POST_RETURN_APPLICATIONS: 16, TOOLS_POST_RETURN_TIME: 7.9s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 61, TOOLS_QUANTIFIERELIM_TIME: 17.7s, TOOLS_QUANTIFIERELIM_MAX_TIME: 1.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 58, FLUID_YES_ANSWERS: 2, DOMAIN_JOIN_APPLICATIONS: 1, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 2, DOMAIN_ALPHA_TIME: 0.5s, DOMAIN_WIDEN_APPLICATIONS: 1, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 2, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 1, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 12.7s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 12.7s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 2, CALL_SUMMARIZER_APPLICATIONS: 16, CALL_SUMMARIZER_CACHE_MISSES: 7, CALL_SUMMARIZER_OVERALL_TIME: 0.6s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.6s, 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: 93, DAG_COMPRESSION_RETAINED_NODES: 56 - UnprovableResult [Line: 311]: 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 67#(and (or (and (exists ((v_~mode2~0_62 Int)) (= (mod v_~mode2~0_62 256) 0)) (= ~mode2~0 1) (or (and (or (and (<= (mod ~send2~0 256) 127) (or (exists ((v_~p2_new~0_42 Int)) (and (or (and (not (= (+ ~send2~0 1) 0)) (= (mod ~send2~0 256) ~p2_old~0) (= (+ v_~p2_new~0_42 1) 0)) (and (or (= (+ ~send2~0 1) 0) (not (= (+ v_~p2_new~0_42 1) 0))) (= (mod v_~p2_new~0_42 256) ~p2_old~0))) (<= (mod v_~p2_new~0_42 256) 127))) (exists ((v_~p2_new~0_42 Int)) (and (or (and (not (= (+ ~send2~0 1) 0)) (= (mod ~send2~0 256) ~p2_old~0) (= (+ v_~p2_new~0_42 1) 0)) (and (or (= (+ ~send2~0 1) 0) (not (= (+ v_~p2_new~0_42 1) 0))) (= (mod v_~p2_new~0_42 256) (+ 256 ~p2_old~0)))) (< 127 (mod v_~p2_new~0_42 256)))))) (and (< 127 (mod ~send2~0 256)) (or (exists ((v_~p2_new~0_42 Int)) (and (or (and (or (= (+ ~send2~0 1) 0) (not (= (+ v_~p2_new~0_42 1) 0))) (= (mod v_~p2_new~0_42 256) ~p2_old~0)) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (not (= (+ ~send2~0 1) 0)) (= (+ v_~p2_new~0_42 1) 0))) (<= (mod v_~p2_new~0_42 256) 127))) (exists ((v_~p2_new~0_42 Int)) (and (< 127 (mod v_~p2_new~0_42 256)) (or (and (or (= (+ ~send2~0 1) 0) (not (= (+ v_~p2_new~0_42 1) 0))) (= (mod v_~p2_new~0_42 256) (+ 256 ~p2_old~0))) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (not (= (+ ~send2~0 1) 0)) (= (+ v_~p2_new~0_42 1) 0))))))) (= ~send2~0 ~id2~0)) (= (mod ~alive2~0 256) 0)) (and (or (and (<= (mod ~send2~0 256) 127) (or (exists ((v_~p2_new~0_42 Int)) (and (or (and (not (= (+ ~send2~0 1) 0)) (= (mod ~send2~0 256) ~p2_old~0) (= (+ v_~p2_new~0_42 1) 0)) (and (or (= (+ ~send2~0 1) 0) (not (= (+ v_~p2_new~0_42 1) 0))) (= (mod v_~p2_new~0_42 256) ~p2_old~0))) (<= (mod v_~p2_new~0_42 256) 127))) (exists ((v_~p2_new~0_42 Int)) (and (or (and (not (= (+ ~send2~0 1) 0)) (= (mod ~send2~0 256) ~p2_old~0) (= (+ v_~p2_new~0_42 1) 0)) (and (or (= (+ ~send2~0 1) 0) (not (= (+ v_~p2_new~0_42 1) 0))) (= (mod v_~p2_new~0_42 256) (+ 256 ~p2_old~0)))) (< 127 (mod v_~p2_new~0_42 256)))))) (and (< 127 (mod ~send2~0 256)) (or (exists ((v_~p2_new~0_42 Int)) (and (or (and (or (= (+ ~send2~0 1) 0) (not (= (+ v_~p2_new~0_42 1) 0))) (= (mod v_~p2_new~0_42 256) ~p2_old~0)) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (not (= (+ ~send2~0 1) 0)) (= (+ v_~p2_new~0_42 1) 0))) (<= (mod v_~p2_new~0_42 256) 127))) (exists ((v_~p2_new~0_42 Int)) (and (< 127 (mod v_~p2_new~0_42 256)) (or (and (or (= (+ ~send2~0 1) 0) (not (= (+ v_~p2_new~0_42 1) 0))) (= (mod v_~p2_new~0_42 256) (+ 256 ~p2_old~0))) (and (= (mod ~send2~0 256) (+ 256 ~p2_old~0)) (not (= (+ ~send2~0 1) 0)) (= (+ v_~p2_new~0_42 1) 0)))))))) (not (= (mod ~alive2~0 256) 0))))) (and (= ~mode2~0 0) (exists ((v_~mode2~0_62 Int)) (not (= (mod v_~mode2~0_62 256) 0))))) (<= 0 ~id3~0) (<= 0 ~mode1~0) (<= 0 ~id1~0) (= ~p2~0 0) (= (+ ~p1_new~0 1) 0) (= assert_~arg |assert_#in~arg|) (<= ~id1~0 127) (= (mod assert_~arg 256) 0) (<= ~mode1~0 1) (= (+ ~nomsg~0 1) 0) (<= ~id3~0 127) (<= 0 ~id2~0) (= |#NULL.offset| 0) (or (and (exists ((v_~mode3~0_70 Int)) (not (= (mod v_~mode3~0_70 256) 0))) (= ~mode3~0 0)) (and (= ~mode3~0 1) (or (and (or (and (or (and (<= (mod ~send3~0 256) 127) (= ~p3_old~0 (mod ~send3~0 256))) (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (< 127 (mod ~send3~0 256)))) (not (= (+ ~send3~0 1) 0))) (exists ((v_~p3_new~0_42 Int)) (and (or (= (+ ~send3~0 1) 0) (not (= (+ v_~p3_new~0_42 1) 0))) (or (and (<= (mod v_~p3_new~0_42 256) 127) (= ~p3_old~0 (mod v_~p3_new~0_42 256))) (and (= (+ ~p3_old~0 256) (mod v_~p3_new~0_42 256)) (< 127 (mod v_~p3_new~0_42 256)))))) (= ~send3~0 ~id3~0)) (= (mod ~alive3~0 256) 0)) (and (not (= (mod ~alive3~0 256) 0)) (or (and (or (and (<= (mod ~send3~0 256) 127) (= ~p3_old~0 (mod ~send3~0 256))) (and (= (+ ~p3_old~0 256) (mod ~send3~0 256)) (< 127 (mod ~send3~0 256)))) (not (= (+ ~send3~0 1) 0))) (exists ((v_~p3_new~0_42 Int)) (and (or (= (+ ~send3~0 1) 0) (not (= (+ v_~p3_new~0_42 1) 0))) (or (and (<= (mod v_~p3_new~0_42 256) 127) (= ~p3_old~0 (mod v_~p3_new~0_42 256))) (and (= (+ ~p3_old~0 256) (mod v_~p3_new~0_42 256)) (< 127 (mod v_~p3_new~0_42 256))))))))) (exists ((v_~mode3~0_70 Int)) (= (mod v_~mode3~0_70 256) 0)))) (= (+ ~p3_new~0 1) 0) (<= ~id2~0 127) (= ~p3~0 0) (= ~p1~0 0) (exists ((v_main_~c1~0_BEFORE_CALL_10 Int)) (and (or (and (or (and (< ~r1~0 3) (= v_main_~c1~0_BEFORE_CALL_10 1)) (and (<= 3 ~r1~0) (or (and (= v_main_~c1~0_BEFORE_CALL_10 0) (not (= (+ ~st3~0 ~st2~0 ~st1~0) 1))) (and (= (+ ~st3~0 ~st2~0 ~st1~0) 1) (= v_main_~c1~0_BEFORE_CALL_10 1))))) (<= (+ ~st3~0 ~st2~0 ~st1~0) 1)) (and (< 1 (+ ~st3~0 ~st2~0 ~st1~0)) (= v_main_~c1~0_BEFORE_CALL_10 0))) (or (and (= |assert_#in~arg| 0) (= v_main_~c1~0_BEFORE_CALL_10 0)) (and (= |assert_#in~arg| 1) (not (= v_main_~c1~0_BEFORE_CALL_10 0)))) (<= 0 (+ v_main_~c1~0_BEFORE_CALL_10 2147483648)) (<= v_main_~c1~0_BEFORE_CALL_10 2147483647))) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0) (= (+ ~p2_new~0 1) 0)). Possible FailurePath: RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-03-31 06:45:18,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...