/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/AutomizerC.xml --sifa.abstract.domain IntervalDomain -i ../sv-benchmarks/c/loops-crafted-1/sumt9.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:06:41,027 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:06:41,028 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:06:41,054 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:06:41,054 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:06:41,055 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:06:41,056 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:06:41,057 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:06:41,058 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:06:41,059 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:06:41,059 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:06:41,060 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:06:41,060 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:06:41,067 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:06:41,068 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:06:41,068 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:06:41,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:06:41,069 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:06:41,070 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:06:41,072 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:06:41,073 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:06:41,081 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:06:41,081 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:06:41,082 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:06:41,084 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:06:41,084 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:06:41,084 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:06:41,085 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:06:41,085 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:06:41,086 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:06:41,086 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:06:41,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:06:41,086 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:06:41,087 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:06:41,087 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:06:41,088 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:06:41,088 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:06:41,088 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:06:41,088 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:06:41,089 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:06:41,089 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:06:41,090 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 23:06:41,107 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:06:41,108 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:06:41,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:06:41,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:06:41,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:06:41,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:06:41,109 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:06:41,109 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:06:41,109 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:06:41,109 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:06:41,110 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:06:41,110 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:06:41,110 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:06:41,110 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:06:41,110 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:06:41,110 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:06:41,110 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:06:41,110 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:06:41,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:06:41,111 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:06:41,111 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:06:41,111 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:06:41,111 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:06:41,111 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:06:41,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:06:41,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:06:41,112 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:06:41,112 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:06:41,112 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:06:41,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:06:41,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:06:41,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:06:41,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:06:41,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:06:41,113 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:06:41,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:06:41,113 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:06:41,113 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:06:41,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:06:41,113 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:06:41,113 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:06:41,113 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:06:41,301 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:06:41,320 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:06:41,321 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:06:41,322 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:06:41,322 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:06:41,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/sumt9.c [2023-03-31 23:06:42,249 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:06:42,354 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:06:42,355 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/sumt9.c [2023-03-31 23:06:42,358 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b775379c/da3daeaef708425eab283c5b45cff704/FLAGbac6d2b4f [2023-03-31 23:06:42,370 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b775379c/da3daeaef708425eab283c5b45cff704 [2023-03-31 23:06:42,371 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:06:42,372 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:06:42,373 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:06:42,373 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:06:42,379 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:06:42,379 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:06:42" (1/1) ... [2023-03-31 23:06:42,380 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ca5ed1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42, skipping insertion in model container [2023-03-31 23:06:42,380 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:06:42" (1/1) ... [2023-03-31 23:06:42,384 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:06:42,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:06:42,475 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/sumt9.c[403,416] [2023-03-31 23:06:42,487 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:06:42,494 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:06:42,502 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/sumt9.c[403,416] [2023-03-31 23:06:42,513 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:06:42,521 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:06:42,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42 WrapperNode [2023-03-31 23:06:42,522 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:06:42,522 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:06:42,522 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:06:42,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:06:42,530 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42" (1/1) ... [2023-03-31 23:06:42,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42" (1/1) ... [2023-03-31 23:06:42,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42" (1/1) ... [2023-03-31 23:06:42,535 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42" (1/1) ... [2023-03-31 23:06:42,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42" (1/1) ... [2023-03-31 23:06:42,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42" (1/1) ... [2023-03-31 23:06:42,541 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42" (1/1) ... [2023-03-31 23:06:42,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42" (1/1) ... [2023-03-31 23:06:42,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:06:42,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:06:42,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:06:42,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:06:42,544 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42" (1/1) ... [2023-03-31 23:06:42,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:06:42,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:06:42,571 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 23:06:42,574 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 23:06:42,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:06:42,599 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:06:42,599 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:06:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 23:06:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 23:06:42,601 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:06:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:06:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:06:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:06:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:06:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 23:06:42,601 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 23:06:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:06:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:06:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:06:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:06:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:06:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:06:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:06:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:06:42,647 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:06:42,649 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:06:42,814 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:06:42,998 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:06:42,998 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 23:06:43,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:06:43 BoogieIcfgContainer [2023-03-31 23:06:43,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:06:43,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:06:43,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:06:43,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:06:43,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:06:42" (1/3) ... [2023-03-31 23:06:43,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14685843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:06:43, skipping insertion in model container [2023-03-31 23:06:43,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:06:42" (2/3) ... [2023-03-31 23:06:43,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14685843 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:06:43, skipping insertion in model container [2023-03-31 23:06:43,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:06:43" (3/3) ... [2023-03-31 23:06:43,013 INFO L112 eAbstractionObserver]: Analyzing ICFG sumt9.c [2023-03-31 23:06:43,025 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:06:43,025 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:06:43,056 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:06:43,061 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@37e967b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:06:43,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:06:43,064 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 23:06:43,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-03-31 23:06:43,069 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:06:43,069 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:06:43,070 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:06:43,073 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:06:43,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1075126305, now seen corresponding path program 1 times [2023-03-31 23:06:43,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:06:43,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715931650] [2023-03-31 23:06:43,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:06:43,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:06:43,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:06:44,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:06:44,424 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:06:44,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715931650] [2023-03-31 23:06:44,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1715931650] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:06:44,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:06:44,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-31 23:06:44,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570356478] [2023-03-31 23:06:44,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:06:44,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-31 23:06:44,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:06:44,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-31 23:06:44,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:06:44,466 INFO L87 Difference]: Start difference. First operand has 18 states, 10 states have (on average 1.4) internal successors, (14), 12 states have internal predecessors, (14), 3 states have call successors, (3), 3 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 23:06:44,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:06:44,539 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2023-03-31 23:06:44,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-31 23:06:44,540 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2023-03-31 23:06:44,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:06:44,544 INFO L225 Difference]: With dead ends: 41 [2023-03-31 23:06:44,544 INFO L226 Difference]: Without dead ends: 21 [2023-03-31 23:06:44,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2023-03-31 23:06:44,550 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 14 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:06:44,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 47 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:06:44,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-03-31 23:06:44,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2023-03-31 23:06:44,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 4 states have call successors, (4), 4 states have call predecessors, (4), 3 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 23:06:44,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2023-03-31 23:06:44,576 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2023-03-31 23:06:44,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:06:44,578 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2023-03-31 23:06:44,578 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 1.4) internal successors, (7), 5 states have internal predecessors, (7), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-03-31 23:06:44,578 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-03-31 23:06:44,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-03-31 23:06:44,579 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:06:44,579 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:06:44,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:06:44,579 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:06:44,580 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:06:44,580 INFO L85 PathProgramCache]: Analyzing trace with hash 1674118388, now seen corresponding path program 1 times [2023-03-31 23:06:44,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:06:44,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416582967] [2023-03-31 23:06:44,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:06:44,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:06:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:06:46,951 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:06:46,951 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:06:46,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416582967] [2023-03-31 23:06:46,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416582967] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:06:46,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088151390] [2023-03-31 23:06:46,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:06:46,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:06:46,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:06:46,955 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:06:46,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-31 23:06:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:06:47,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 37 conjunts are in the unsatisfiable core [2023-03-31 23:06:47,050 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:06:47,982 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:06:47,983 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:07:02,653 WARN L223 SmtUtils]: Spent 5.00s on a formula simplification. DAG size of input: 95 DAG size of output: 43 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-31 23:07:03,057 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:07:03,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088151390] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:07:03,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1163348860] [2023-03-31 23:07:03,071 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2023-03-31 23:07:03,071 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:07:03,073 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:07:03,076 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:07:03,077 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:07:03,124 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 11 for LOIs [2023-03-31 23:07:03,901 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 48 for LOIs [2023-03-31 23:07:03,921 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2023-03-31 23:07:03,926 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:07:04,313 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '230#(and (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (= ~SIZE~0 20000001) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-03-31 23:07:04,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:07:04,313 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:07:04,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 7] total 17 [2023-03-31 23:07:04,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2120792649] [2023-03-31 23:07:04,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-03-31 23:07:04,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-03-31 23:07:04,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:07:04,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-03-31 23:07:04,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=585, Unknown=3, NotChecked=0, Total=702 [2023-03-31 23:07:04,324 INFO L87 Difference]: Start difference. First operand 20 states and 20 transitions. Second operand has 17 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 15 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2023-03-31 23:07:06,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-03-31 23:07:07,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:07:07,311 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-03-31 23:07:07,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-31 23:07:07,311 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 15 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) Word has length 17 [2023-03-31 23:07:07,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:07:07,311 INFO L225 Difference]: With dead ends: 23 [2023-03-31 23:07:07,311 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:07:07,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 37 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=165, Invalid=888, Unknown=3, NotChecked=0, Total=1056 [2023-03-31 23:07:07,313 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 12 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-03-31 23:07:07,313 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 32 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 74 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2023-03-31 23:07:07,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:07:07,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:07:07,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-03-31 23:07:07,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:07:07,314 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2023-03-31 23:07:07,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:07:07,314 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:07:07,314 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 1.9285714285714286) internal successors, (27), 15 states have internal predecessors, (27), 6 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (5), 4 states have call predecessors, (5), 2 states have call successors, (5) [2023-03-31 23:07:07,314 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:07:07,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:07:07,316 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:07:07,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-31 23:07:07,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:07:07,524 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:07:07,676 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2023-03-31 23:07:07,676 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 3) no Hoare annotation was computed. [2023-03-31 23:07:07,676 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 5 7) no Hoare annotation was computed. [2023-03-31 23:07:07,676 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2023-03-31 23:07:07,676 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 16 45) no Hoare annotation was computed. [2023-03-31 23:07:07,676 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-03-31 23:07:07,676 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 16 45) no Hoare annotation was computed. [2023-03-31 23:07:07,676 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (or (< 20000001 ~SIZE~0) (let ((.cse2 (mod (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296))) (let ((.cse0 (* (div (+ main_~v1~0 1) 4294967296) 4294967296)) (.cse1 (mod (+ main_~l~0 1) 4294967296)) (.cse3 (+ .cse2 main_~v1~0))) (and (< (+ .cse0 .cse1) (+ .cse2 2 main_~v1~0)) (< .cse3 (+ (* (div (+ main_~v1~0 (- 4294967295)) 4294967296) 4294967296) 8589934592 .cse1)) (or (< (+ 4294967294 (* (div (+ .cse2 (* (- 1) .cse1) main_~v1~0) 4294967296) 4294967296)) main_~v1~0) (< (+ .cse0 4294967294 .cse1) .cse3))))) (<= (+ (div ~SIZE~0 4294967296) 1) 0)) [2023-03-31 23:07:07,677 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 16 45) the Hoare annotation is: true [2023-03-31 23:07:07,677 INFO L895 garLoopResultBuilder]: At program point L42-1(lines 21 43) the Hoare annotation is: (or (< 20000001 ~SIZE~0) (let ((.cse2 (mod (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296))) (let ((.cse0 (* (div (+ main_~v1~0 1) 4294967296) 4294967296)) (.cse1 (mod (+ main_~l~0 1) 4294967296)) (.cse3 (+ .cse2 main_~v1~0))) (and (< (+ .cse0 .cse1) (+ .cse2 2 main_~v1~0)) (< .cse3 (+ (* (div (+ main_~v1~0 (- 4294967295)) 4294967296) 4294967296) 8589934592 .cse1)) (or (< (+ 4294967294 (* (div (+ .cse2 (* (- 1) .cse1) main_~v1~0) 4294967296) 4294967296)) main_~v1~0) (< (+ .cse0 4294967294 .cse1) .cse3))))) (<= (+ (div ~SIZE~0 4294967296) 1) 0)) [2023-03-31 23:07:07,677 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:07:07,677 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:07:07,677 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:07:07,677 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~SIZE~0 20000001) (< 0 (+ (div ~SIZE~0 4294967296) 1))) [2023-03-31 23:07:07,677 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:07:07,677 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:07:07,677 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2023-03-31 23:07:07,677 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 8 13) no Hoare annotation was computed. [2023-03-31 23:07:07,677 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 13) the Hoare annotation is: true [2023-03-31 23:07:07,677 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2023-03-31 23:07:07,677 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 13) no Hoare annotation was computed. [2023-03-31 23:07:07,678 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2023-03-31 23:07:07,679 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 23:07:07,681 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:07:07,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:07:07 BoogieIcfgContainer [2023-03-31 23:07:07,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:07:07,691 INFO L158 Benchmark]: Toolchain (without parser) took 25318.46ms. Allocated memory was 254.8MB in the beginning and 442.5MB in the end (delta: 187.7MB). Free memory was 203.1MB in the beginning and 356.7MB in the end (delta: -153.6MB). Peak memory consumption was 35.6MB. Max. memory is 8.0GB. [2023-03-31 23:07:07,691 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 181.4MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:07:07,691 INFO L158 Benchmark]: CACSL2BoogieTranslator took 148.74ms. Allocated memory is still 254.8MB. Free memory was 202.6MB in the beginning and 192.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 23:07:07,691 INFO L158 Benchmark]: Boogie Preprocessor took 20.76ms. Allocated memory is still 254.8MB. Free memory was 192.1MB in the beginning and 190.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-31 23:07:07,692 INFO L158 Benchmark]: RCFGBuilder took 461.90ms. Allocated memory is still 254.8MB. Free memory was 190.5MB in the beginning and 162.8MB in the end (delta: 27.7MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-03-31 23:07:07,692 INFO L158 Benchmark]: TraceAbstraction took 24683.22ms. Allocated memory was 254.8MB in the beginning and 442.5MB in the end (delta: 187.7MB). Free memory was 162.2MB in the beginning and 356.7MB in the end (delta: -194.5MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:07:07,693 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 181.4MB. Free memory is still 131.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 148.74ms. Allocated memory is still 254.8MB. Free memory was 202.6MB in the beginning and 192.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.76ms. Allocated memory is still 254.8MB. Free memory was 192.1MB in the beginning and 190.5MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 461.90ms. Allocated memory is still 254.8MB. Free memory was 190.5MB in the beginning and 162.8MB in the end (delta: 27.7MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 24683.22ms. Allocated memory was 254.8MB in the beginning and 442.5MB in the end (delta: 187.7MB). Free memory was 162.2MB in the beginning and 356.7MB in the end (delta: -194.5MB). There was no memory consumed. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 10]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 22 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 24.6s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 59 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 102 IncrementalHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 20 mSDtfsCounter, 102 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 40 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 266 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=1, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 10 PreInvPairs, 17 NumberOfFragments, 265 HoareAnnotationTreeSize, 10 FomulaSimplifications, 4 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 379 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 19.5s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 935 SizeOfPredicates, 2 NumberOfNonLiveVariables, 109 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 6/12 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: (20000001 < SIZE || (((v1 + 1) / 4294967296 * 4294967296 + (l + 1) % 4294967296 < (i + k + j + v3 + v2 + v6 + v5 + v4) % 4294967296 + 2 + v1 && (i + k + j + v3 + v2 + v6 + v5 + v4) % 4294967296 + v1 < (v1 + -4294967295) / 4294967296 * 4294967296 + 8589934592 + (l + 1) % 4294967296) && (4294967294 + ((i + k + j + v3 + v2 + v6 + v5 + v4) % 4294967296 + -1 * ((l + 1) % 4294967296) + v1) / 4294967296 * 4294967296 < v1 || (v1 + 1) / 4294967296 * 4294967296 + 4294967294 + (l + 1) % 4294967296 < (i + k + j + v3 + v2 + v6 + v5 + v4) % 4294967296 + v1))) || SIZE / 4294967296 + 1 <= 0 RESULT: Ultimate proved your program to be correct! [2023-03-31 23:07:07,723 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...