/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 OctagonDomain -i ../sv-benchmarks/c/loops-crafted-1/sumt9.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 05:07:20,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 05:07:20,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 05:07:20,481 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-04-01 05:07:20,482 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-04-01 05:07:20,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-04-01 05:07:20,488 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-04-01 05:07:20,491 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-04-01 05:07:20,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-04-01 05:07:20,497 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-04-01 05:07:20,499 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-04-01 05:07:20,500 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-04-01 05:07:20,501 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-04-01 05:07:20,505 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-04-01 05:07:20,506 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-04-01 05:07:20,507 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-04-01 05:07:20,508 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-04-01 05:07:20,509 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-04-01 05:07:20,511 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-04-01 05:07:20,516 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-04-01 05:07:20,517 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-04-01 05:07:20,518 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-04-01 05:07:20,519 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-04-01 05:07:20,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-04-01 05:07:20,527 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-04-01 05:07:20,528 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-04-01 05:07:20,528 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-04-01 05:07:20,529 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-04-01 05:07:20,530 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-04-01 05:07:20,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-04-01 05:07:20,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-04-01 05:07:20,532 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-04-01 05:07:20,533 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-04-01 05:07:20,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-04-01 05:07:20,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-04-01 05:07:20,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-04-01 05:07:20,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-04-01 05:07:20,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-04-01 05:07:20,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 05:07:20,536 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 05:07:20,536 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 05:07:20,537 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 [2023-04-01 05:07:20,573 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 05:07:20,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 05:07:20,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 05:07:20,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 05:07:20,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 05:07:20,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 05:07:20,575 INFO L138 SettingsManager]: * User list type=DISABLED [2023-04-01 05:07:20,575 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-04-01 05:07:20,575 INFO L138 SettingsManager]: * Explicit value domain=true [2023-04-01 05:07:20,575 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-04-01 05:07:20,576 INFO L138 SettingsManager]: * Octagon Domain=false [2023-04-01 05:07:20,576 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-04-01 05:07:20,576 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-04-01 05:07:20,576 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-04-01 05:07:20,576 INFO L138 SettingsManager]: * Interval Domain=false [2023-04-01 05:07:20,576 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-04-01 05:07:20,577 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-04-01 05:07:20,577 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-04-01 05:07:20,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 05:07:20,578 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 05:07:20,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 05:07:20,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 05:07:20,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 05:07:20,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 05:07:20,578 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 05:07:20,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 05:07:20,579 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 05:07:20,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 05:07:20,579 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 05:07:20,579 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 05:07:20,579 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 05:07:20,579 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 05:07:20,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:07:20,580 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 05:07:20,580 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-04-01 05:07:20,580 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 05:07:20,580 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 05:07:20,580 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-04-01 05:07:20,580 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 05:07:20,580 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 05:07:20,581 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-04-01 05:07:20,581 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> OctagonDomain [2023-04-01 05:07:20,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 05:07:20,852 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 05:07:20,855 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 05:07:20,857 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 05:07:20,857 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 05:07:20,858 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/sumt9.c [2023-04-01 05:07:22,021 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 05:07:22,207 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 05:07:22,207 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/sumt9.c [2023-04-01 05:07:22,212 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef44ead00/34377015249f40f9a63beedee7acb260/FLAGee7154680 [2023-04-01 05:07:22,231 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ef44ead00/34377015249f40f9a63beedee7acb260 [2023-04-01 05:07:22,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 05:07:22,234 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 05:07:22,237 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 05:07:22,237 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 05:07:22,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 05:07:22,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:07:22" (1/1) ... [2023-04-01 05:07:22,242 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23803265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22, skipping insertion in model container [2023-04-01 05:07:22,242 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 05:07:22" (1/1) ... [2023-04-01 05:07:22,248 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 05:07:22,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 05:07:22,407 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] [2023-04-01 05:07:22,443 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:07:22,452 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 05:07:22,464 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] [2023-04-01 05:07:22,475 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 05:07:22,487 INFO L208 MainTranslator]: Completed translation [2023-04-01 05:07:22,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22 WrapperNode [2023-04-01 05:07:22,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 05:07:22,489 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 05:07:22,489 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 05:07:22,489 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 05:07:22,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22" (1/1) ... [2023-04-01 05:07:22,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22" (1/1) ... [2023-04-01 05:07:22,506 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22" (1/1) ... [2023-04-01 05:07:22,507 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22" (1/1) ... [2023-04-01 05:07:22,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22" (1/1) ... [2023-04-01 05:07:22,515 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22" (1/1) ... [2023-04-01 05:07:22,515 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22" (1/1) ... [2023-04-01 05:07:22,516 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22" (1/1) ... [2023-04-01 05:07:22,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 05:07:22,518 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 05:07:22,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 05:07:22,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 05:07:22,519 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22" (1/1) ... [2023-04-01 05:07:22,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 05:07:22,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 05:07:22,545 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) [2023-04-01 05:07:22,548 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 [2023-04-01 05:07:22,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 05:07:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 05:07:22,580 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 05:07:22,581 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 05:07:22,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 05:07:22,581 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 05:07:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 05:07:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 05:07:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 05:07:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 05:07:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 05:07:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 05:07:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 05:07:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 05:07:22,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 05:07:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 05:07:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 05:07:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 05:07:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 05:07:22,583 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 05:07:22,636 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 05:07:22,637 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 05:07:22,802 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 05:07:23,091 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 05:07:23,091 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-04-01 05:07:23,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:07:23 BoogieIcfgContainer [2023-04-01 05:07:23,093 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 05:07:23,095 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 05:07:23,095 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 05:07:23,104 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 05:07:23,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 05:07:22" (1/3) ... [2023-04-01 05:07:23,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f21f21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:07:23, skipping insertion in model container [2023-04-01 05:07:23,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 05:07:22" (2/3) ... [2023-04-01 05:07:23,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f21f21b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 05:07:23, skipping insertion in model container [2023-04-01 05:07:23,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 05:07:23" (3/3) ... [2023-04-01 05:07:23,108 INFO L112 eAbstractionObserver]: Analyzing ICFG sumt9.c [2023-04-01 05:07:23,124 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 05:07:23,125 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 05:07:23,173 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 05:07:23,179 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;@43e97c81, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-04-01 05:07:23,180 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 05:07:23,183 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) [2023-04-01 05:07:23,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-04-01 05:07:23,191 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:07:23,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:07:23,192 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:07:23,199 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:07:23,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1075126305, now seen corresponding path program 1 times [2023-04-01 05:07:23,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:07:23,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826922268] [2023-04-01 05:07:23,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:07:23,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:07:23,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:07:24,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:07:24,989 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:07:24,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826922268] [2023-04-01 05:07:24,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826922268] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 05:07:24,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 05:07:24,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-04-01 05:07:24,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824566072] [2023-04-01 05:07:24,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 05:07:24,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-04-01 05:07:24,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:07:25,029 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-04-01 05:07:25,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-04-01 05:07:25,033 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) [2023-04-01 05:07:25,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:07:25,133 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2023-04-01 05:07:25,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-04-01 05:07:25,135 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 [2023-04-01 05:07:25,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:07:25,140 INFO L225 Difference]: With dead ends: 41 [2023-04-01 05:07:25,141 INFO L226 Difference]: Without dead ends: 21 [2023-04-01 05:07:25,147 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 [2023-04-01 05:07:25,152 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 [2023-04-01 05:07:25,153 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] [2023-04-01 05:07:25,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2023-04-01 05:07:25,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2023-04-01 05:07:25,184 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) [2023-04-01 05:07:25,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 20 transitions. [2023-04-01 05:07:25,187 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 20 transitions. Word has length 11 [2023-04-01 05:07:25,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:07:25,188 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 20 transitions. [2023-04-01 05:07:25,188 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) [2023-04-01 05:07:25,189 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 20 transitions. [2023-04-01 05:07:25,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-04-01 05:07:25,190 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 05:07:25,190 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 05:07:25,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 05:07:25,191 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 05:07:25,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 05:07:25,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1674118388, now seen corresponding path program 1 times [2023-04-01 05:07:25,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-04-01 05:07:25,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399446386] [2023-04-01 05:07:25,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:07:25,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 05:07:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:07:28,121 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:07:28,121 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-04-01 05:07:28,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399446386] [2023-04-01 05:07:28,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399446386] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 05:07:28,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [722319042] [2023-04-01 05:07:28,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 05:07:28,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 05:07:28,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 05:07:28,129 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) [2023-04-01 05:07:28,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 05:07:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 05:07:28,239 INFO L262 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 37 conjunts are in the unsatisfiable core [2023-04-01 05:07:28,246 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 05:07:29,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:07:29,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 05:07:43,386 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 05:07:43,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [722319042] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 05:07:43,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [967678246] [2023-04-01 05:07:43,406 INFO L159 IcfgInterpreter]: Started Sifa with 14 locations of interest [2023-04-01 05:07:43,407 INFO L166 IcfgInterpreter]: Building call graph [2023-04-01 05:07:43,410 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-04-01 05:07:43,414 INFO L176 IcfgInterpreter]: Starting interpretation [2023-04-01 05:07:43,415 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-04-01 05:07:43,484 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 12 for LOIs [2023-04-01 05:07:47,618 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 60 for LOIs [2023-04-01 05:07:47,672 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 10 for LOIs [2023-04-01 05:07:47,679 INFO L180 IcfgInterpreter]: Interpretation finished [2023-04-01 05:07:48,255 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '230#(and (<= 1 |#StackHeapBarrier|) (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (= ~SIZE~0 20000001) (= |#NULL.offset| 0) (= |#NULL.base| 0))' at error location [2023-04-01 05:07:48,255 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-04-01 05:07:48,255 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 05:07:48,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 7] total 17 [2023-04-01 05:07:48,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564386609] [2023-04-01 05:07:48,256 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 05:07:48,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-04-01 05:07:48,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-04-01 05:07:48,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-04-01 05:07:48,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=116, Invalid=585, Unknown=1, NotChecked=0, Total=702 [2023-04-01 05:07:48,259 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) [2023-04-01 05:07:48,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 05:07:48,541 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2023-04-01 05:07:48,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-04-01 05:07:48,542 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 [2023-04-01 05:07:48,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 05:07:48,542 INFO L225 Difference]: With dead ends: 23 [2023-04-01 05:07:48,542 INFO L226 Difference]: Without dead ends: 0 [2023-04-01 05:07:48,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 9.7s TimeCoverageRelationStatistics Valid=167, Invalid=888, Unknown=1, NotChecked=0, Total=1056 [2023-04-01 05:07:48,544 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 15 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 05:07:48,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 28 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 05:07:48,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-04-01 05:07:48,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-04-01 05:07:48,546 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) [2023-04-01 05:07:48,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-04-01 05:07:48,546 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2023-04-01 05:07:48,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 05:07:48,546 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-04-01 05:07:48,546 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) [2023-04-01 05:07:48,546 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-04-01 05:07:48,547 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-04-01 05:07:48,549 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-04-01 05:07:48,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-04-01 05:07:48,749 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 [2023-04-01 05:07:48,751 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-04-01 05:07:48,849 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2023-04-01 05:07:48,849 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 3) no Hoare annotation was computed. [2023-04-01 05:07:48,849 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(lines 5 7) no Hoare annotation was computed. [2023-04-01 05:07:48,849 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 5 7) no Hoare annotation was computed. [2023-04-01 05:07:48,849 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 16 45) no Hoare annotation was computed. [2023-04-01 05:07:48,849 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2023-04-01 05:07:48,850 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 16 45) no Hoare annotation was computed. [2023-04-01 05:07:48,850 INFO L895 garLoopResultBuilder]: At program point L42(line 42) the Hoare annotation is: (or (< 20000001 ~SIZE~0) (= (mod main_~l~0 4294967296) (mod (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296)) (<= (+ (div ~SIZE~0 4294967296) 1) 0)) [2023-04-01 05:07:48,850 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 16 45) the Hoare annotation is: true [2023-04-01 05:07:48,850 INFO L895 garLoopResultBuilder]: At program point L42-1(lines 21 43) the Hoare annotation is: (or (< 20000001 ~SIZE~0) (= (mod main_~l~0 4294967296) (mod (+ main_~i~0 main_~k~0 main_~j~0 main_~v3~0 main_~v2~0 main_~v1~0 main_~v6~0 main_~v5~0 main_~v4~0) 4294967296)) (<= (+ (div ~SIZE~0 4294967296) 1) 0)) [2023-04-01 05:07:48,850 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 05:07:48,850 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-04-01 05:07:48,850 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-04-01 05:07:48,854 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~SIZE~0 20000001) (< 0 (+ (div ~SIZE~0 4294967296) 1))) [2023-04-01 05:07:48,854 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-04-01 05:07:48,854 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-04-01 05:07:48,855 INFO L899 garLoopResultBuilder]: For program point L10(line 10) no Hoare annotation was computed. [2023-04-01 05:07:48,855 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 8 13) no Hoare annotation was computed. [2023-04-01 05:07:48,855 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 8 13) the Hoare annotation is: true [2023-04-01 05:07:48,855 INFO L899 garLoopResultBuilder]: For program point L9(lines 9 11) no Hoare annotation was computed. [2023-04-01 05:07:48,855 INFO L899 garLoopResultBuilder]: For program point L9-2(lines 8 13) no Hoare annotation was computed. [2023-04-01 05:07:48,855 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2023-04-01 05:07:48,858 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-04-01 05:07:48,860 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-04-01 05:07:48,875 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.04 05:07:48 BoogieIcfgContainer [2023-04-01 05:07:48,875 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-04-01 05:07:48,883 INFO L158 Benchmark]: Toolchain (without parser) took 26641.76ms. Allocated memory was 230.7MB in the beginning and 483.4MB in the end (delta: 252.7MB). Free memory was 182.6MB in the beginning and 401.8MB in the end (delta: -219.2MB). Peak memory consumption was 34.4MB. Max. memory is 8.0GB. [2023-04-01 05:07:48,884 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 189.8MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 05:07:48,884 INFO L158 Benchmark]: CACSL2BoogieTranslator took 251.22ms. Allocated memory is still 230.7MB. Free memory was 182.6MB in the beginning and 171.5MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-04-01 05:07:48,886 INFO L158 Benchmark]: Boogie Preprocessor took 29.02ms. Allocated memory is still 230.7MB. Free memory was 171.5MB in the beginning and 170.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-04-01 05:07:48,886 INFO L158 Benchmark]: RCFGBuilder took 574.97ms. Allocated memory is still 230.7MB. Free memory was 170.0MB in the beginning and 142.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-04-01 05:07:48,888 INFO L158 Benchmark]: TraceAbstraction took 25780.05ms. Allocated memory was 230.7MB in the beginning and 483.4MB in the end (delta: 252.7MB). Free memory was 142.2MB in the beginning and 401.8MB in the end (delta: -259.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-04-01 05:07:48,890 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 189.8MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 251.22ms. Allocated memory is still 230.7MB. Free memory was 182.6MB in the beginning and 171.5MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 29.02ms. Allocated memory is still 230.7MB. Free memory was 171.5MB in the beginning and 170.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 574.97ms. Allocated memory is still 230.7MB. Free memory was 170.0MB in the beginning and 142.7MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * TraceAbstraction took 25780.05ms. Allocated memory was 230.7MB in the beginning and 483.4MB in the end (delta: 252.7MB). Free memory was 142.2MB in the beginning and 401.8MB in the end (delta: -259.7MB). 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: 25.7s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 30 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 29 mSDsluCounter, 75 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 97 IncrementalHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 20 mSDtfsCounter, 97 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 77 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 249 ImplicationChecksByTransitivity, 9.8s 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, 69 HoareAnnotationTreeSize, 10 FomulaSimplifications, 4 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 381 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 19.6s 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 || l % 4294967296 == (i + k + j + v3 + v2 + v1 + v6 + v5 + v4) % 4294967296) || SIZE / 4294967296 + 1 <= 0 RESULT: Ultimate proved your program to be correct! [2023-04-01 05:07:48,916 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...