/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/nla-digbench-scaling/mannadiv_valuebound20.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-31 23:25:49,303 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-31 23:25:49,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-31 23:25:49,341 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-03-31 23:25:49,341 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-03-31 23:25:49,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-03-31 23:25:49,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-03-31 23:25:49,344 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-03-31 23:25:49,346 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-03-31 23:25:49,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-03-31 23:25:49,353 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-03-31 23:25:49,356 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-03-31 23:25:49,356 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-31 23:25:49,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-31 23:25:49,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-31 23:25:49,362 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-31 23:25:49,363 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-31 23:25:49,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-31 23:25:49,364 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-31 23:25:49,365 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-31 23:25:49,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-31 23:25:49,367 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-31 23:25:49,368 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-31 23:25:49,369 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-31 23:25:49,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-03-31 23:25:49,374 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-03-31 23:25:49,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-03-31 23:25:49,375 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-03-31 23:25:49,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-03-31 23:25:49,376 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-03-31 23:25:49,376 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-03-31 23:25:49,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-03-31 23:25:49,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-03-31 23:25:49,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-03-31 23:25:49,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-03-31 23:25:49,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-03-31 23:25:49,378 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-03-31 23:25:49,378 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-03-31 23:25:49,378 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-31 23:25:49,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-31 23:25:49,379 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-31 23:25:49,393 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 23:25:49,410 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-31 23:25:49,410 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-31 23:25:49,410 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-31 23:25:49,410 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-31 23:25:49,411 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-31 23:25:49,411 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-31 23:25:49,411 INFO L138 SettingsManager]: * User list type=DISABLED [2023-03-31 23:25:49,411 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2023-03-31 23:25:49,411 INFO L138 SettingsManager]: * Explicit value domain=true [2023-03-31 23:25:49,412 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2023-03-31 23:25:49,412 INFO L138 SettingsManager]: * Octagon Domain=false [2023-03-31 23:25:49,412 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2023-03-31 23:25:49,412 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2023-03-31 23:25:49,412 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2023-03-31 23:25:49,413 INFO L138 SettingsManager]: * Interval Domain=false [2023-03-31 23:25:49,413 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2023-03-31 23:25:49,413 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2023-03-31 23:25:49,413 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2023-03-31 23:25:49,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-31 23:25:49,413 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-31 23:25:49,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-31 23:25:49,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-31 23:25:49,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-31 23:25:49,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-31 23:25:49,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-31 23:25:49,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-31 23:25:49,414 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-31 23:25:49,414 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-31 23:25:49,414 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-31 23:25:49,415 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-31 23:25:49,415 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-31 23:25:49,415 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-31 23:25:49,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:25:49,415 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-31 23:25:49,415 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2023-03-31 23:25:49,415 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-31 23:25:49,415 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-31 23:25:49,415 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2023-03-31 23:25:49,415 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-31 23:25:49,416 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-31 23:25:49,416 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2023-03-31 23:25:49,416 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.sifa: Abstract Domain -> IntervalDomain [2023-03-31 23:25:49,584 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-31 23:25:49,605 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-31 23:25:49,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-31 23:25:49,608 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-31 23:25:49,608 INFO L275 PluginConnector]: CDTParser initialized [2023-03-31 23:25:49,609 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c [2023-03-31 23:25:50,699 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-31 23:25:50,847 INFO L351 CDTParser]: Found 1 translation units. [2023-03-31 23:25:50,847 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c [2023-03-31 23:25:50,851 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d91af94/63ac403fd4a74721be344248da3a2c82/FLAG8641eb8bf [2023-03-31 23:25:50,861 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10d91af94/63ac403fd4a74721be344248da3a2c82 [2023-03-31 23:25:50,863 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-31 23:25:50,864 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-31 23:25:50,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-31 23:25:50,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-31 23:25:50,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-31 23:25:50,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:25:50" (1/1) ... [2023-03-31 23:25:50,868 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7ad3db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:50, skipping insertion in model container [2023-03-31 23:25:50,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.03 11:25:50" (1/1) ... [2023-03-31 23:25:50,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-31 23:25:50,885 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-31 23:25:50,970 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c[573,586] [2023-03-31 23:25:50,977 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:25:50,983 INFO L203 MainTranslator]: Completed pre-run [2023-03-31 23:25:50,991 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c[573,586] [2023-03-31 23:25:50,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-31 23:25:51,004 INFO L208 MainTranslator]: Completed translation [2023-03-31 23:25:51,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:51 WrapperNode [2023-03-31 23:25:51,005 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-31 23:25:51,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-31 23:25:51,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-31 23:25:51,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-31 23:25:51,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:51" (1/1) ... [2023-03-31 23:25:51,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:51" (1/1) ... [2023-03-31 23:25:51,017 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:51" (1/1) ... [2023-03-31 23:25:51,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:51" (1/1) ... [2023-03-31 23:25:51,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:51" (1/1) ... [2023-03-31 23:25:51,022 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:51" (1/1) ... [2023-03-31 23:25:51,022 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:51" (1/1) ... [2023-03-31 23:25:51,023 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:51" (1/1) ... [2023-03-31 23:25:51,024 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-31 23:25:51,024 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-31 23:25:51,024 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-31 23:25:51,024 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-31 23:25:51,025 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:51" (1/1) ... [2023-03-31 23:25:51,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-31 23:25:51,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:25:51,049 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 23:25:51,057 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 23:25:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-31 23:25:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-31 23:25:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-31 23:25:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-31 23:25:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-31 23:25:51,073 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-31 23:25:51,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-31 23:25:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-31 23:25:51,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-31 23:25:51,116 INFO L236 CfgBuilder]: Building ICFG [2023-03-31 23:25:51,118 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-31 23:25:51,216 INFO L277 CfgBuilder]: Performing block encoding [2023-03-31 23:25:51,237 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-31 23:25:51,237 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-03-31 23:25:51,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:25:51 BoogieIcfgContainer [2023-03-31 23:25:51,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-31 23:25:51,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-31 23:25:51,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-31 23:25:51,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-31 23:25:51,243 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.03 11:25:50" (1/3) ... [2023-03-31 23:25:51,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79658900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:25:51, skipping insertion in model container [2023-03-31 23:25:51,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.03 11:25:51" (2/3) ... [2023-03-31 23:25:51,244 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79658900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.03 11:25:51, skipping insertion in model container [2023-03-31 23:25:51,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.03 11:25:51" (3/3) ... [2023-03-31 23:25:51,245 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound20.c [2023-03-31 23:25:51,273 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-31 23:25:51,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-31 23:25:51,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-31 23:25:51,330 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;@405f1251, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-03-31 23:25:51,330 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-31 23:25:51,333 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-31 23:25:51,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-03-31 23:25:51,342 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:25:51,342 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:25:51,342 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:25:51,346 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:25:51,346 INFO L85 PathProgramCache]: Analyzing trace with hash 776607170, now seen corresponding path program 1 times [2023-03-31 23:25:51,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:25:51,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029367750] [2023-03-31 23:25:51,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:25:51,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:25:51,420 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-31 23:25:51,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105793032] [2023-03-31 23:25:51,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:25:51,421 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:25:51,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:25:51,439 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 23:25:51,440 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 23:25:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:25:51,507 INFO L262 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 24 conjunts are in the unsatisfiable core [2023-03-31 23:25:51,515 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:25:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-31 23:25:51,784 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-03-31 23:25:51,784 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:25:51,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029367750] [2023-03-31 23:25:51,786 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-31 23:25:51,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105793032] [2023-03-31 23:25:51,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105793032] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-31 23:25:51,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-31 23:25:51,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-03-31 23:25:51,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782274987] [2023-03-31 23:25:51,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-31 23:25:51,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-31 23:25:51,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:25:51,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-31 23:25:51,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-03-31 23:25:51,820 INFO L87 Difference]: Start difference. First operand has 24 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 13 states have internal predecessors, (16), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 23:25:51,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:25:51,948 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2023-03-31 23:25:51,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-03-31 23:25:51,950 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 17 [2023-03-31 23:25:51,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:25:51,955 INFO L225 Difference]: With dead ends: 48 [2023-03-31 23:25:51,956 INFO L226 Difference]: Without dead ends: 28 [2023-03-31 23:25:51,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2023-03-31 23:25:51,960 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 14 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:25:51,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 68 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:25:51,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-03-31 23:25:51,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 26. [2023-03-31 23:25:51,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 14 states have (on average 1.1428571428571428) internal successors, (16), 16 states have internal predecessors, (16), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (5), 4 states have call predecessors, (5), 5 states have call successors, (5) [2023-03-31 23:25:51,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2023-03-31 23:25:51,987 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 17 [2023-03-31 23:25:51,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:25:51,988 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2023-03-31 23:25:51,988 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-03-31 23:25:51,989 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2023-03-31 23:25:51,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-03-31 23:25:51,989 INFO L187 NwaCegarLoop]: Found error trace [2023-03-31 23:25:51,989 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-31 23:25:52,002 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-03-31 23:25:52,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-03-31 23:25:52,204 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-31 23:25:52,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-31 23:25:52,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1130132655, now seen corresponding path program 1 times [2023-03-31 23:25:52,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2023-03-31 23:25:52,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464721727] [2023-03-31 23:25:52,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:25:52,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-31 23:25:52,221 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-31 23:25:52,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167909351] [2023-03-31 23:25:52,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-31 23:25:52,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-31 23:25:52,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-31 23:25:52,235 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-31 23:25:52,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-31 23:25:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-31 23:25:52,288 INFO L262 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 19 conjunts are in the unsatisfiable core [2023-03-31 23:25:52,290 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-31 23:25:52,402 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-03-31 23:25:52,402 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-31 23:25:52,495 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-03-31 23:25:52,496 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2023-03-31 23:25:52,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464721727] [2023-03-31 23:25:52,496 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-31 23:25:52,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167909351] [2023-03-31 23:25:52,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167909351] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-31 23:25:52,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1077095791] [2023-03-31 23:25:52,510 INFO L159 IcfgInterpreter]: Started Sifa with 20 locations of interest [2023-03-31 23:25:52,510 INFO L166 IcfgInterpreter]: Building call graph [2023-03-31 23:25:52,513 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2023-03-31 23:25:52,518 INFO L176 IcfgInterpreter]: Starting interpretation [2023-03-31 23:25:52,518 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2023-03-31 23:25:52,566 INFO L197 IcfgInterpreter]: Interpreting procedure main with input of size 8 for LOIs [2023-03-31 23:25:52,730 INFO L197 IcfgInterpreter]: Interpreting procedure __VERIFIER_assert with input of size 13 for LOIs [2023-03-31 23:25:52,747 INFO L197 IcfgInterpreter]: Interpreting procedure assume_abort_if_not with input of size 8 for LOIs [2023-03-31 23:25:52,749 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.init with input of size 7 for LOIs [2023-03-31 23:25:52,759 INFO L180 IcfgInterpreter]: Interpretation finished [2023-03-31 23:25:53,126 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '343#(and (= |__VERIFIER_assert_#in~cond| 0) (= __VERIFIER_assert_~cond 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= |#NULL.base| 0))' at error location [2023-03-31 23:25:53,127 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2023-03-31 23:25:53,127 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-31 23:25:53,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 7] total 15 [2023-03-31 23:25:53,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167110260] [2023-03-31 23:25:53,127 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-31 23:25:53,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-31 23:25:53,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2023-03-31 23:25:53,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-31 23:25:53,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=600, Unknown=0, NotChecked=0, Total=702 [2023-03-31 23:25:53,133 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand has 15 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 11 states have internal predecessors, (20), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-03-31 23:25:53,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-31 23:25:53,248 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2023-03-31 23:25:53,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-03-31 23:25:53,249 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 11 states have internal predecessors, (20), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 23 [2023-03-31 23:25:53,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-31 23:25:53,249 INFO L225 Difference]: With dead ends: 26 [2023-03-31 23:25:53,250 INFO L226 Difference]: Without dead ends: 0 [2023-03-31 23:25:53,251 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 41 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=118, Invalid=694, Unknown=0, NotChecked=0, Total=812 [2023-03-31 23:25:53,253 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 14 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-31 23:25:53,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 58 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-31 23:25:53,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-03-31 23:25:53,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-03-31 23:25:53,259 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 23:25:53,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-03-31 23:25:53,260 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2023-03-31 23:25:53,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-31 23:25:53,260 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-03-31 23:25:53,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 11 states have internal predecessors, (20), 5 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2023-03-31 23:25:53,260 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-03-31 23:25:53,260 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-03-31 23:25:53,262 INFO L805 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-03-31 23:25:53,281 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-03-31 23:25:53,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-03-31 23:25:53,469 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-03-31 23:25:53,558 INFO L899 garLoopResultBuilder]: For program point reach_errorEXIT(line 9) no Hoare annotation was computed. [2023-03-31 23:25:53,558 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line 9) no Hoare annotation was computed. [2023-03-31 23:25:53,559 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 12 14) the Hoare annotation is: true [2023-03-31 23:25:53,559 INFO L899 garLoopResultBuilder]: For program point assume_abort_if_notEXIT(lines 12 14) no Hoare annotation was computed. [2023-03-31 23:25:53,559 INFO L895 garLoopResultBuilder]: At program point L35-2(lines 35 48) the Hoare annotation is: (let ((.cse0 (* main_~x2~0 main_~y1~0))) (and (<= main_~x2~0 2147483647) (<= 0 main_~x1~0) (not (= main_~x2~0 0)) (= (+ .cse0 main_~y3~0 main_~y2~0) main_~x1~0) (<= 0 (+ main_~x2~0 2147483648)) (= (+ .cse0 main_~y2~0) main_~x1~0))) [2023-03-31 23:25:53,559 INFO L899 garLoopResultBuilder]: For program point L29(line 29) no Hoare annotation was computed. [2023-03-31 23:25:53,559 INFO L899 garLoopResultBuilder]: For program point mainEXIT(lines 22 51) no Hoare annotation was computed. [2023-03-31 23:25:53,559 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 22 51) the Hoare annotation is: true [2023-03-31 23:25:53,560 INFO L895 garLoopResultBuilder]: At program point L40-2(lines 35 48) the Hoare annotation is: (and (<= main_~x2~0 2147483647) (<= main_~y3~0 main_~x1~0) (<= 0 main_~x1~0) (not (= main_~x2~0 0)) (= (+ (* main_~x2~0 main_~y1~0) main_~y3~0 main_~y2~0) main_~x1~0) (<= 0 (+ main_~x2~0 2147483648))) [2023-03-31 23:25:53,560 INFO L895 garLoopResultBuilder]: At program point L36(line 36) the Hoare annotation is: (and (<= main_~x2~0 2147483647) (<= main_~y3~0 main_~x1~0) (<= 0 main_~x1~0) (not (= main_~x2~0 0)) (= (+ (* main_~x2~0 main_~y1~0) main_~y3~0 main_~y2~0) main_~x1~0) (<= 0 (+ main_~x2~0 2147483648))) [2023-03-31 23:25:53,560 INFO L899 garLoopResultBuilder]: For program point L36-1(lines 35 48) no Hoare annotation was computed. [2023-03-31 23:25:53,560 INFO L895 garLoopResultBuilder]: At program point L28(line 28) the Hoare annotation is: (and (<= main_~x2~0 2147483647) (<= 0 (+ main_~x2~0 2147483648))) [2023-03-31 23:25:53,560 INFO L895 garLoopResultBuilder]: At program point L28-1(line 28) the Hoare annotation is: (and (<= main_~x2~0 2147483647) (<= 0 main_~x1~0) (<= 0 (+ main_~x2~0 2147483648))) [2023-03-31 23:25:53,560 INFO L899 garLoopResultBuilder]: For program point L49(line 49) no Hoare annotation was computed. [2023-03-31 23:25:53,560 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:25:53,560 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:25:53,560 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-03-31 23:25:53,560 INFO L902 garLoopResultBuilder]: At program point L-1(line -1) the Hoare annotation is: true [2023-03-31 23:25:53,561 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2023-03-31 23:25:53,561 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(line -1) the Hoare annotation is: true [2023-03-31 23:25:53,561 INFO L899 garLoopResultBuilder]: For program point L17(lines 17 18) no Hoare annotation was computed. [2023-03-31 23:25:53,561 INFO L899 garLoopResultBuilder]: For program point L16(lines 16 19) no Hoare annotation was computed. [2023-03-31 23:25:53,561 INFO L899 garLoopResultBuilder]: For program point L16-2(lines 15 21) no Hoare annotation was computed. [2023-03-31 23:25:53,561 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertEXIT(lines 15 21) no Hoare annotation was computed. [2023-03-31 23:25:53,561 INFO L902 garLoopResultBuilder]: At program point $Ultimate##0(lines 15 21) the Hoare annotation is: true [2023-03-31 23:25:53,561 INFO L899 garLoopResultBuilder]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 18) no Hoare annotation was computed. [2023-03-31 23:25:53,564 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-03-31 23:25:53,565 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-03-31 23:25:53,575 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.03 11:25:53 BoogieIcfgContainer [2023-03-31 23:25:53,575 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-03-31 23:25:53,575 INFO L158 Benchmark]: Toolchain (without parser) took 2710.87ms. Allocated memory is still 341.8MB. Free memory was 291.2MB in the beginning and 138.2MB in the end (delta: 153.0MB). Peak memory consumption was 154.5MB. Max. memory is 8.0GB. [2023-03-31 23:25:53,575 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 204.5MB. Free memory was 152.0MB in the beginning and 151.8MB in the end (delta: 161.0kB). There was no memory consumed. Max. memory is 8.0GB. [2023-03-31 23:25:53,576 INFO L158 Benchmark]: CACSL2BoogieTranslator took 139.87ms. Allocated memory is still 341.8MB. Free memory was 291.2MB in the beginning and 280.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-03-31 23:25:53,576 INFO L158 Benchmark]: Boogie Preprocessor took 18.41ms. Allocated memory is still 341.8MB. Free memory was 280.9MB in the beginning and 279.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-03-31 23:25:53,576 INFO L158 Benchmark]: RCFGBuilder took 215.25ms. Allocated memory is still 341.8MB. Free memory was 279.3MB in the beginning and 267.0MB in the end (delta: 12.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2023-03-31 23:25:53,576 INFO L158 Benchmark]: TraceAbstraction took 2333.82ms. Allocated memory is still 341.8MB. Free memory was 266.3MB in the beginning and 138.2MB in the end (delta: 128.1MB). Peak memory consumption was 129.4MB. Max. memory is 8.0GB. [2023-03-31 23:25:53,577 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 204.5MB. Free memory was 152.0MB in the beginning and 151.8MB in the end (delta: 161.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 139.87ms. Allocated memory is still 341.8MB. Free memory was 291.2MB in the beginning and 280.9MB in the end (delta: 10.3MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 18.41ms. Allocated memory is still 341.8MB. Free memory was 280.9MB in the beginning and 279.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 215.25ms. Allocated memory is still 341.8MB. Free memory was 279.3MB in the beginning and 267.0MB in the end (delta: 12.2MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 2333.82ms. Allocated memory is still 341.8MB. Free memory was 266.3MB in the beginning and 138.2MB in the end (delta: 128.1MB). Peak memory consumption was 129.4MB. 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: 18]: 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, 26 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 126 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 101 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 171 IncrementalHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 25 mSDtfsCounter, 171 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 16 PreInvPairs, 21 NumberOfFragments, 112 HoareAnnotationTreeSize, 16 FomulaSimplifications, 28 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 60 ConstructedInterpolants, 0 QuantifiedInterpolants, 243 SizeOfPredicates, 7 NumberOfNonLiveVariables, 163 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 7/10 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: 35]: Loop Invariant Derived loop invariant: ((((x2 <= 2147483647 && y3 <= x1) && 0 <= x1) && !(x2 == 0)) && x2 * y1 + y3 + y2 == x1) && 0 <= x2 + 2147483648 RESULT: Ultimate proved your program to be correct! [2023-03-31 23:25:53,599 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...