/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/loop-zilu/benchmark20_conjunctive.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:08:01,251 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:08:01,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:08:01,272 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:08:01,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:08:01,276 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:08:01,278 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:08:01,279 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:08:01,280 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:08:01,280 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:08:01,281 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:08:01,284 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:08:01,284 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:08:01,289 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:08:01,291 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:08:01,292 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:08:01,292 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:08:01,293 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:08:01,293 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:08:01,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:08:01,295 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:08:01,297 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:08:01,298 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:08:01,299 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:08:01,305 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:08:01,305 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:08:01,305 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:08:01,306 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:08:01,306 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:08:01,306 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:08:01,306 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:08:01,307 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:08:01,307 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:08:01,308 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:08:01,308 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:08:01,308 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:08:01,309 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:08:01,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:08:01,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:08:01,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:08:01,310 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:08:01,317 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 23:08:01,335 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:08:01,335 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:08:01,336 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:08:01,336 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:08:01,336 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:08:01,336 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:08:01,337 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:08:01,337 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:08:01,337 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:08:01,337 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:08:01,337 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:08:01,337 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:08:01,338 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:08:01,338 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:08:01,338 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:08:01,338 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:08:01,338 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:08:01,338 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:08:01,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:08:01,338 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:08:01,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:08:01,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:08:01,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:08:01,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:08:01,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:08:01,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:08:01,339 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:08:01,339 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:08:01,339 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:08:01,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:08:01,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:08:01,340 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:08:01,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:08:01,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:08:01,340 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:08:01,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:08:01,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:08:01,340 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:08:01,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:08:01,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:08:01,340 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:08:01,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:08:01,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:08:01,554 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:08:01,558 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:08:01,559 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:08:01,560 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:08:01,561 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2023-03-31 23:08:02,745 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:08:02,925 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:08:02,925 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-zilu/benchmark20_conjunctive.i [2023-03-31 23:08:02,929 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f05c658a3/8f5e2015981d457092cd1ff3eafb7af9/FLAG6248cc5c8 [2023-03-31 23:08:02,941 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f05c658a3/8f5e2015981d457092cd1ff3eafb7af9 [2023-03-31 23:08:02,943 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:08:02,944 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:08:02,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:08:02,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:08:02,949 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:08:02,950 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:08:02" (1/1) ... [2023-03-31 23:08:02,951 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6186730e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:02, skipping insertion in model container [2023-03-31 23:08:02,951 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:08:02" (1/1) ... [2023-03-31 23:08:02,955 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:08:02,965 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:08:03,098 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/loop-zilu/benchmark20_conjunctive.i[873,886] [2023-03-31 23:08:03,109 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:08:03,117 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:08:03,125 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/loop-zilu/benchmark20_conjunctive.i[873,886] [2023-03-31 23:08:03,129 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:08:03,138 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:08:03,138 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:03 WrapperNode [2023-03-31 23:08:03,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:08:03,139 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:08:03,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:08:03,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:08:03,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:03" (1/1) ... [2023-03-31 23:08:03,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:03" (1/1) ... [2023-03-31 23:08:03,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:03" (1/1) ... [2023-03-31 23:08:03,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:03" (1/1) ... [2023-03-31 23:08:03,153 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:03" (1/1) ... [2023-03-31 23:08:03,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:03" (1/1) ... [2023-03-31 23:08:03,155 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:03" (1/1) ... [2023-03-31 23:08:03,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:03" (1/1) ... [2023-03-31 23:08:03,157 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:08:03,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:08:03,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:08:03,158 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:08:03,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:03" (1/1) ... [2023-03-31 23:08:03,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:08:03,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:08:03,184 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 23:08:03,202 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 23:08:03,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:08:03,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:08:03,210 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:08:03,210 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 23:08:03,210 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:08:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:08:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2023-03-31 23:08:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2023-03-31 23:08:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:08:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:08:03,210 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:08:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2023-03-31 23:08:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 23:08:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:08:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:08:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:08:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:08:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:08:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:08:03,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:08:03,272 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:08:03,274 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:08:03,358 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:08:03,370 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:08:03,370 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 23:08:03,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:08:03 BoogieIcfgContainer [2023-03-31 23:08:03,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:08:03,379 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:08:03,379 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:08:03,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:08:03,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:08:02" (1/3) ... [2023-03-31 23:08:03,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1c989c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:08:03, skipping insertion in model container [2023-03-31 23:08:03,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:08:03" (2/3) ... [2023-03-31 23:08:03,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d1c989c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:08:03, skipping insertion in model container [2023-03-31 23:08:03,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:08:03" (3/3) ... [2023-03-31 23:08:03,383 INFO L112 eAbstractionObserver]: Analyzing ICFG benchmark20_conjunctive.i [2023-03-31 23:08:03,406 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:08:03,406 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:08:03,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:08:03,442 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;@6403ceee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:08:03,442 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:08:03,445 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 23:08:03,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2023-03-31 23:08:03,449 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:08:03,450 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:08:03,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:08:03,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:08:03,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1357240066, now seen corresponding path program 1 times [2023-03-31 23:08:03,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:08:03,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774953623] [2023-03-31 23:08:03,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:08:03,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:08:03,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:08:03,687 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 23:08:03,688 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:08:03,688 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774953623] [2023-03-31 23:08:03,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774953623] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:08:03,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:08:03,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-03-31 23:08:03,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253616559] [2023-03-31 23:08:03,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:08:03,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-03-31 23:08:03,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:08:03,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-03-31 23:08:03,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-03-31 23:08:03,720 INFO L87 Difference]: Start difference. First operand has 19 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 12 states have internal predecessors, (15), 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 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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 23:08:03,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:08:03,815 INFO L93 Difference]: Finished difference Result 37 states and 41 transitions. [2023-03-31 23:08:03,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-31 23:08:03,818 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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 23:08:03,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:08:03,823 INFO L225 Difference]: With dead ends: 37 [2023-03-31 23:08:03,823 INFO L226 Difference]: Without dead ends: 13 [2023-03-31 23:08:03,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-03-31 23:08:03,842 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:08:03,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 57 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:08:03,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2023-03-31 23:08:03,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2023-03-31 23:08:03,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 3 states have call successors, (3), 3 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 23:08:03,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2023-03-31 23:08:03,893 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2023-03-31 23:08:03,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:08:03,893 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2023-03-31 23:08:03,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 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 23:08:03,893 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2023-03-31 23:08:03,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-03-31 23:08:03,894 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:08:03,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:08:03,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-31 23:08:03,894 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:08:03,920 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:08:03,921 INFO L85 PathProgramCache]: Analyzing trace with hash 51745214, now seen corresponding path program 1 times [2023-03-31 23:08:03,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:08:03,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013877825] [2023-03-31 23:08:03,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:08:03,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:08:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:08:04,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:08:04,022 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:08:04,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013877825] [2023-03-31 23:08:04,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013877825] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-31 23:08:04,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2051850313] [2023-03-31 23:08:04,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:08:04,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:08:04,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:08:04,025 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 23:08:04,026 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 23:08:04,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:08:04,075 INFO L262 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 9 conjunts are in the unsatisfiable core [2023-03-31 23:08:04,079 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:08:04,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:08:04,154 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:08:04,190 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-31 23:08:04,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2051850313] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:08:04,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1738482389] [2023-03-31 23:08:04,205 INFO L159 IcfgInterpreter]: Started Sifa with 12 locations of interest [2023-03-31 23:08:04,205 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:08:04,208 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:08:04,211 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:08:04,212 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:08:04,262 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 8 for LOIs [2023-03-31 23:08:04,296 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 11 for LOIs [2023-03-31 23:08:04,300 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-03-31 23:08:04,304 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:08:04,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSifa [1738482389] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:08:04,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 3 imperfect interpolant sequences. [2023-03-31 23:08:04,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6, 6, 6] total 17 [2023-03-31 23:08:04,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96411092] [2023-03-31 23:08:04,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:08:04,464 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-03-31 23:08:04,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:08:04,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-03-31 23:08:04,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2023-03-31 23:08:04,467 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand has 10 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 3 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 23:08:04,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:08:04,914 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2023-03-31 23:08:04,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-03-31 23:08:04,914 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 3 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 12 [2023-03-31 23:08:04,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:08:04,914 INFO L225 Difference]: With dead ends: 13 [2023-03-31 23:08:04,914 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:08:04,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=124, Invalid=428, Unknown=0, NotChecked=0, Total=552 [2023-03-31 23:08:04,916 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 15 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-31 23:08:04,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 4 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-31 23:08:04,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:08:04,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:08:04,917 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 23:08:04,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:08:04,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2023-03-31 23:08:04,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:08:04,917 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:08:04,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 6 states have internal predecessors, (8), 3 states have call successors, (3), 3 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 23:08:04,917 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:08:04,917 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:08:04,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:08:04,955 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 23:08:05,138 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 23:08:05,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:08:05,274 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 11) no Hoare annotation was computed. [2023-03-31 23:08:05,274 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 11) no Hoare annotation was computed. [2023-03-31 23:08:05,274 INFO L899 garLoopResultBuilder]: For program point L28(line 28) no Hoare annotation was computed. [2023-03-31 23:08:05,274 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 19 30) no Hoare annotation was computed. [2023-03-31 23:08:05,274 INFO L899 garLoopResultBuilder]: For program point L23(line 23) no Hoare annotation was computed. [2023-03-31 23:08:05,274 INFO L895 garLoopResultBuilder]: At program point L24-2(lines 24 27) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= 26 (select |#length| 2))) (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0) (and (<= main_~n~0 100) (<= 0 main_~i~0) (<= 0 main_~n~0) (<= 0 main_~sum~0)))) [2023-03-31 23:08:05,275 INFO L895 garLoopResultBuilder]: At program point L24-3(lines 24 27) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (or (not (= 26 (select |#length| 2))) (not (= (select .cse0 0) 48)) (not (= |#NULL.offset| 0)) (not (= 2 (select |#length| 1))) (not (= (select |#valid| 0) 0)) (not (= (select .cse0 1) 0)) (not (= (select |#valid| 1) 1)) (not (= |#NULL.base| 0)) (<= 0 main_~sum~0) (not (= (select |#valid| 2) 1)) (<= |#StackHeapBarrier| 0))) [2023-03-31 23:08:05,275 INFO L899 garLoopResultBuilder]: For program point mainFINAL(lines 19 30) no Hoare annotation was computed. [2023-03-31 23:08:05,275 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 19 30) the Hoare annotation is: true [2023-03-31 23:08:05,275 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: (and (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#NULL.base)| |#NULL.base|)) [2023-03-31 23:08:05,275 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:08:05,275 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:08:05,275 INFO L895 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 (select |#memory_int| 1))) (and (= 26 (select |#length| 2)) (= 2 (select |#length| 1)) (= (select |#valid| 1) 1) (= (select |#valid| 0) 0) (= (select |#valid| 2) 1) (= |#NULL.offset| 0) (= (select .cse0 0) 48) (= (select .cse0 1) 0) (< 0 |#StackHeapBarrier|) (= |#NULL.base| 0))) [2023-03-31 23:08:05,275 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:08:05,275 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:08:05,276 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-03-31 23:08:05,276 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2023-03-31 23:08:05,276 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 18) no Hoare annotation was computed. [2023-03-31 23:08:05,276 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 14 18) no Hoare annotation was computed. [2023-03-31 23:08:05,276 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 14 18) the Hoare annotation is: true [2023-03-31 23:08:05,276 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2023-03-31 23:08:05,278 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 23:08:05,280 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:08:05,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:08:05 BoogieIcfgContainer [2023-03-31 23:08:05,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:08:05,307 INFO L158 Benchmark]: Toolchain (without parser) took 2362.84ms. Allocated memory is still 228.6MB. Free memory was 180.5MB in the beginning and 172.9MB in the end (delta: 7.6MB). Peak memory consumption was 8.8MB. Max. memory is 8.0GB. [2023-03-31 23:08:05,307 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 154.1MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:08:05,308 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.34ms. Allocated memory is still 228.6MB. Free memory was 180.2MB in the beginning and 170.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 23:08:05,308 INFO L158 Benchmark]: Boogie Preprocessor took 18.12ms. Allocated memory is still 228.6MB. Free memory was 170.3MB in the beginning and 168.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-03-31 23:08:05,308 INFO L158 Benchmark]: RCFGBuilder took 218.23ms. Allocated memory is still 228.6MB. Free memory was 168.7MB in the beginning and 157.8MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-31 23:08:05,308 INFO L158 Benchmark]: TraceAbstraction took 1927.92ms. Allocated memory is still 228.6MB. Free memory was 157.2MB in the beginning and 172.9MB in the end (delta: -15.7MB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:08:05,309 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 154.1MB. Free memory is still 103.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 191.34ms. Allocated memory is still 228.6MB. Free memory was 180.2MB in the beginning and 170.3MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.12ms. Allocated memory is still 228.6MB. Free memory was 170.3MB in the beginning and 168.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 218.23ms. Allocated memory is still 228.6MB. Free memory was 168.7MB in the beginning and 157.8MB in the end (delta: 10.9MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 1927.92ms. Allocated memory is still 228.6MB. Free memory was 157.2MB in the beginning and 172.9MB in the end (delta: -15.7MB). 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: 16]: 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 5 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 23 mSDsluCounter, 61 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 42 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 66 IncrementalHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 19 mSDtfsCounter, 66 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 8 PreInvPairs, 10 NumberOfFragments, 191 HoareAnnotationTreeSize, 8 FomulaSimplifications, 68 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 334 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 95 SizeOfPredicates, 3 NumberOfNonLiveVariables, 63 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 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: OVERALL_TIME: 0.1s, ICFG_INTERPRETER_ENTERED_PROCEDURES: 4, DAG_INTERPRETER_EARLY_EXIT_QUERIES_NONTRIVIAL: 11, DAG_INTERPRETER_EARLY_EXITS: 1, TOOLS_POST_APPLICATIONS: 10, TOOLS_POST_TIME: 0.0s, TOOLS_POST_CALL_APPLICATIONS: 5, TOOLS_POST_CALL_TIME: 0.0s, TOOLS_POST_RETURN_APPLICATIONS: 2, TOOLS_POST_RETURN_TIME: 0.0s, TOOLS_QUANTIFIERELIM_APPLICATIONS: 17, TOOLS_QUANTIFIERELIM_TIME: 0.0s, TOOLS_QUANTIFIERELIM_MAX_TIME: 0.0s, FLUID_QUERY_TIME: 0.0s, FLUID_QUERIES: 38, FLUID_YES_ANSWERS: 0, DOMAIN_JOIN_APPLICATIONS: 2, DOMAIN_JOIN_TIME: 0.0s, DOMAIN_ALPHA_APPLICATIONS: 0, DOMAIN_ALPHA_TIME: 0.0s, DOMAIN_WIDEN_APPLICATIONS: 2, DOMAIN_WIDEN_TIME: 0.0s, DOMAIN_ISSUBSETEQ_APPLICATIONS: 3, DOMAIN_ISSUBSETEQ_TIME: 0.0s, DOMAIN_ISBOTTOM_APPLICATIONS: 11, DOMAIN_ISBOTTOM_TIME: 0.0s, LOOP_SUMMARIZER_APPLICATIONS: 1, LOOP_SUMMARIZER_CACHE_MISSES: 1, LOOP_SUMMARIZER_OVERALL_TIME: 0.0s, LOOP_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, LOOP_SUMMARIZER_FIXPOINT_ITERATIONS: 3, CALL_SUMMARIZER_APPLICATIONS: 2, CALL_SUMMARIZER_CACHE_MISSES: 1, CALL_SUMMARIZER_OVERALL_TIME: 0.0s, CALL_SUMMARIZER_NEW_COMPUTATION_TIME: 0.0s, PROCEDURE_GRAPH_BUILDER_TIME: 0.0s, PATH_EXPR_TIME: 0.0s, REGEX_TO_DAG_TIME: 0.0s, DAG_COMPRESSION_TIME: 0.0s, DAG_COMPRESSION_PROCESSED_NODES: 63, DAG_COMPRESSION_RETAINED_NODES: 45, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((((((!(26 == unknown-#length-unknown[2]) || !(unknown-#memory_int-unknown[1][0] == 48)) || !(#NULL == 0)) || !(2 == unknown-#length-unknown[1])) || !(\valid[0] == 0)) || !(unknown-#memory_int-unknown[1][1] == 0)) || !(\valid[1] == 1)) || !(#NULL == 0)) || !(\valid[2] == 1)) || unknown-#StackHeapBarrier-unknown <= 0) || (((n <= 100 && 0 <= i) && 0 <= n) && 0 <= sum) RESULT: Ultimate proved your program to be correct! [2023-03-31 23:08:05,327 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...