./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29123ed479a06938c1b58bc0ee2ae38219e9e012922d3ca9fba5679eb1736558 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:00:33,098 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:00:33,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:00:33,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:00:33,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:00:33,158 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:00:33,159 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:00:33,161 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:00:33,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:00:33,166 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:00:33,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:00:33,167 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:00:33,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:00:33,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:00:33,171 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:00:33,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:00:33,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:00:33,175 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:00:33,177 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:00:33,181 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:00:33,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:00:33,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:00:33,184 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:00:33,185 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:00:33,189 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:00:33,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:00:33,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:00:33,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:00:33,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:00:33,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:00:33,192 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:00:33,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:00:33,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:00:33,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:00:33,197 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:00:33,197 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:00:33,197 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:00:33,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:00:33,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:00:33,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:00:33,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:00:33,199 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:00:33,227 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:00:33,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:00:33,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:00:33,228 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:00:33,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:00:33,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:00:33,229 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:00:33,229 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:00:33,230 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:00:33,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:00:33,230 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:00:33,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:00:33,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:00:33,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:00:33,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:00:33,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:00:33,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:00:33,231 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:00:33,231 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:00:33,232 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:00:33,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:00:33,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:00:33,232 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:00:33,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:00:33,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:00:33,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:00:33,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:00:33,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:00:33,234 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:00:33,234 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:00:33,234 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:00:33,234 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:00:33,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:00:33,234 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:00:33,235 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29123ed479a06938c1b58bc0ee2ae38219e9e012922d3ca9fba5679eb1736558 [2021-12-15 11:00:33,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:00:33,475 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:00:33,477 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:00:33,478 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:00:33,478 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:00:33,479 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c [2021-12-15 11:00:33,563 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de86533f5/25eda7e1bc904e8abe3e427a67f1acd4/FLAG7e6ac3409 [2021-12-15 11:00:33,876 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:00:33,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c [2021-12-15 11:00:33,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de86533f5/25eda7e1bc904e8abe3e427a67f1acd4/FLAG7e6ac3409 [2021-12-15 11:00:33,895 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/de86533f5/25eda7e1bc904e8abe3e427a67f1acd4 [2021-12-15 11:00:33,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:00:33,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:00:33,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:00:33,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:00:33,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:00:33,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:00:33" (1/1) ... [2021-12-15 11:00:33,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@df683f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:33, skipping insertion in model container [2021-12-15 11:00:33,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:00:33" (1/1) ... [2021-12-15 11:00:33,909 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:00:33,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:00:34,032 WARN L230 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/fermat1-ll_valuebound2.c[535,548] [2021-12-15 11:00:34,057 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:00:34,065 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:00:34,074 WARN L230 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/fermat1-ll_valuebound2.c[535,548] [2021-12-15 11:00:34,081 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:00:34,094 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:00:34,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34 WrapperNode [2021-12-15 11:00:34,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:00:34,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:00:34,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:00:34,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:00:34,103 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34" (1/1) ... [2021-12-15 11:00:34,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34" (1/1) ... [2021-12-15 11:00:34,131 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 56 [2021-12-15 11:00:34,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:00:34,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:00:34,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:00:34,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:00:34,138 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34" (1/1) ... [2021-12-15 11:00:34,138 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34" (1/1) ... [2021-12-15 11:00:34,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34" (1/1) ... [2021-12-15 11:00:34,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34" (1/1) ... [2021-12-15 11:00:34,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34" (1/1) ... [2021-12-15 11:00:34,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34" (1/1) ... [2021-12-15 11:00:34,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34" (1/1) ... [2021-12-15 11:00:34,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:00:34,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:00:34,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:00:34,166 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:00:34,167 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34" (1/1) ... [2021-12-15 11:00:34,173 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:00:34,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:00:34,192 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) [2021-12-15 11:00:34,226 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 [2021-12-15 11:00:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:00:34,238 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 11:00:34,238 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 11:00:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:00:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:00:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:00:34,239 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 11:00:34,239 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 11:00:34,277 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:00:34,279 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:00:34,398 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:00:34,402 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:00:34,403 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 11:00:34,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:00:34 BoogieIcfgContainer [2021-12-15 11:00:34,404 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:00:34,405 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:00:34,405 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:00:34,408 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:00:34,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:00:33" (1/3) ... [2021-12-15 11:00:34,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638e6254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:00:34, skipping insertion in model container [2021-12-15 11:00:34,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:34" (2/3) ... [2021-12-15 11:00:34,409 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@638e6254 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:00:34, skipping insertion in model container [2021-12-15 11:00:34,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:00:34" (3/3) ... [2021-12-15 11:00:34,428 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound2.c [2021-12-15 11:00:34,432 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:00:34,432 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:00:34,488 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:00:34,493 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 11:00:34,493 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:00:34,513 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-15 11:00:34,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-15 11:00:34,519 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:00:34,520 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:00:34,521 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:00:34,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:00:34,528 INFO L85 PathProgramCache]: Analyzing trace with hash -2017412251, now seen corresponding path program 1 times [2021-12-15 11:00:34,535 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:00:34,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056250423] [2021-12-15 11:00:34,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:00:34,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:00:34,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:00:34,580 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:89) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 11:00:34,588 INFO L158 Benchmark]: Toolchain (without parser) took 688.26ms. Allocated memory is still 115.3MB. Free memory was 82.0MB in the beginning and 69.1MB in the end (delta: 12.9MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2021-12-15 11:00:34,589 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 89.5MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:00:34,590 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.86ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 91.2MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:00:34,591 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.04ms. Allocated memory is still 115.3MB. Free memory was 91.2MB in the beginning and 89.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:00:34,591 INFO L158 Benchmark]: Boogie Preprocessor took 32.69ms. Allocated memory is still 115.3MB. Free memory was 89.5MB in the beginning and 88.5MB in the end (delta: 985.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:00:34,592 INFO L158 Benchmark]: RCFGBuilder took 238.57ms. Allocated memory is still 115.3MB. Free memory was 88.5MB in the beginning and 78.6MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:00:34,595 INFO L158 Benchmark]: TraceAbstraction took 180.66ms. Allocated memory is still 115.3MB. Free memory was 78.0MB in the beginning and 69.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:00:34,600 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 115.3MB. Free memory was 89.6MB in the beginning and 89.5MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.86ms. Allocated memory is still 115.3MB. Free memory was 81.8MB in the beginning and 91.2MB in the end (delta: -9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.04ms. Allocated memory is still 115.3MB. Free memory was 91.2MB in the beginning and 89.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.69ms. Allocated memory is still 115.3MB. Free memory was 89.5MB in the beginning and 88.5MB in the end (delta: 985.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 238.57ms. Allocated memory is still 115.3MB. Free memory was 88.5MB in the beginning and 78.6MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 180.66ms. Allocated memory is still 115.3MB. Free memory was 78.0MB in the beginning and 69.1MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:00:34,647 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... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 29123ed479a06938c1b58bc0ee2ae38219e9e012922d3ca9fba5679eb1736558 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:00:36,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:00:36,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:00:36,397 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:00:36,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:00:36,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:00:36,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:00:36,409 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:00:36,410 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:00:36,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:00:36,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:00:36,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:00:36,417 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:00:36,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:00:36,420 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:00:36,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:00:36,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:00:36,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:00:36,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:00:36,435 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:00:36,437 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:00:36,437 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:00:36,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:00:36,440 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:00:36,444 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:00:36,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:00:36,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:00:36,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:00:36,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:00:36,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:00:36,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:00:36,448 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:00:36,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:00:36,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:00:36,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:00:36,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:00:36,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:00:36,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:00:36,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:00:36,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:00:36,454 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:00:36,460 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:00:36,501 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:00:36,501 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:00:36,501 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:00:36,501 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:00:36,502 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:00:36,502 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:00:36,502 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:00:36,502 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:00:36,503 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:00:36,503 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:00:36,503 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:00:36,503 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:00:36,503 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:00:36,503 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:00:36,503 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:00:36,503 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:00:36,503 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:00:36,504 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:00:36,504 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:00:36,504 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:00:36,504 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:00:36,504 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:00:36,504 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:00:36,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:00:36,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:00:36,510 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:00:36,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:00:36,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:00:36,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:00:36,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:00:36,511 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:00:36,511 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:00:36,511 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:00:36,511 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:00:36,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:00:36,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:00:36,511 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:00:36,512 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29123ed479a06938c1b58bc0ee2ae38219e9e012922d3ca9fba5679eb1736558 [2021-12-15 11:00:36,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:00:36,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:00:36,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:00:36,818 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:00:36,819 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:00:36,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c [2021-12-15 11:00:36,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c3ca7b0/8bf24249342544eeba931220d67642f4/FLAG4102c3909 [2021-12-15 11:00:37,233 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:00:37,233 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/fermat1-ll_valuebound2.c [2021-12-15 11:00:37,238 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c3ca7b0/8bf24249342544eeba931220d67642f4/FLAG4102c3909 [2021-12-15 11:00:37,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/32c3ca7b0/8bf24249342544eeba931220d67642f4 [2021-12-15 11:00:37,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:00:37,671 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:00:37,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:00:37,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:00:37,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:00:37,689 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68929125 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37, skipping insertion in model container [2021-12-15 11:00:37,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,696 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:00:37,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:00:37,821 WARN L230 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/fermat1-ll_valuebound2.c[535,548] [2021-12-15 11:00:37,836 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:00:37,847 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:00:37,860 WARN L230 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/fermat1-ll_valuebound2.c[535,548] [2021-12-15 11:00:37,886 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:00:37,901 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:00:37,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37 WrapperNode [2021-12-15 11:00:37,907 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:00:37,909 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:00:37,909 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:00:37,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:00:37,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,925 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,943 INFO L137 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 54 [2021-12-15 11:00:37,943 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:00:37,944 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:00:37,944 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:00:37,944 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:00:37,950 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,954 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,955 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,969 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:00:37,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:00:37,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:00:37,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:00:37,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37" (1/1) ... [2021-12-15 11:00:37,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:00:37,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:00:38,008 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) [2021-12-15 11:00:38,027 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 [2021-12-15 11:00:38,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:00:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:00:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 11:00:38,039 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 11:00:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:00:38,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:00:38,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 11:00:38,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 11:00:38,094 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:00:38,095 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:00:38,248 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:00:38,253 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:00:38,263 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 11:00:38,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:00:38 BoogieIcfgContainer [2021-12-15 11:00:38,265 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:00:38,266 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:00:38,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:00:38,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:00:38,281 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:00:37" (1/3) ... [2021-12-15 11:00:38,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b91bec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:00:38, skipping insertion in model container [2021-12-15 11:00:38,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:00:37" (2/3) ... [2021-12-15 11:00:38,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b91bec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:00:38, skipping insertion in model container [2021-12-15 11:00:38,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:00:38" (3/3) ... [2021-12-15 11:00:38,285 INFO L111 eAbstractionObserver]: Analyzing ICFG fermat1-ll_valuebound2.c [2021-12-15 11:00:38,300 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:00:38,301 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:00:38,335 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:00:38,341 INFO L339 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=PETRI_NET, 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, mLoopAccelerationTechnique=FAST_UPR [2021-12-15 11:00:38,342 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:00:38,352 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-15 11:00:38,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-12-15 11:00:38,355 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:00:38,356 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:00:38,356 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:00:38,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:00:38,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2017412251, now seen corresponding path program 1 times [2021-12-15 11:00:38,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:00:38,369 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [864183955] [2021-12-15 11:00:38,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:00:38,370 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:00:38,372 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:00:38,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 11:00:38,376 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 11:00:38,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 11:00:38,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 11:00:38,599 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.constructGlobalVarsAssignment(OldVarsAssignmentCache.java:155) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.OldVarsAssignmentCache.getGlobalVarsAssignment(OldVarsAssignmentCache.java:93) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:89) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.DefaultTransFormulas.getGlobalVarAssignmentFromValidPos(DefaultTransFormulas.java:1) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedFormulas.getGlobalVarAssignment(NestedFormulas.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckUtils.decoupleArrayValues(TraceCheckUtils.java:384) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:87) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 11:00:38,603 INFO L158 Benchmark]: Toolchain (without parser) took 930.99ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 29.8MB in the beginning and 40.8MB in the end (delta: -11.0MB). Peak memory consumption was 10.6MB. Max. memory is 16.1GB. [2021-12-15 11:00:38,603 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 34.4MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:00:38,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 233.96ms. Allocated memory is still 52.4MB. Free memory was 29.6MB in the beginning and 32.3MB in the end (delta: -2.7MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2021-12-15 11:00:38,604 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.81ms. Allocated memory is still 52.4MB. Free memory was 32.3MB in the beginning and 30.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:00:38,605 INFO L158 Benchmark]: Boogie Preprocessor took 35.38ms. Allocated memory is still 52.4MB. Free memory was 30.8MB in the beginning and 29.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:00:38,606 INFO L158 Benchmark]: RCFGBuilder took 285.14ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 29.4MB in the beginning and 49.4MB in the end (delta: -20.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2021-12-15 11:00:38,606 INFO L158 Benchmark]: TraceAbstraction took 335.30ms. Allocated memory is still 71.3MB. Free memory was 48.9MB in the beginning and 41.1MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:00:38,609 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 52.4MB. Free memory is still 34.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 233.96ms. Allocated memory is still 52.4MB. Free memory was 29.6MB in the beginning and 32.3MB in the end (delta: -2.7MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.81ms. Allocated memory is still 52.4MB. Free memory was 32.3MB in the beginning and 30.8MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.38ms. Allocated memory is still 52.4MB. Free memory was 30.8MB in the beginning and 29.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 285.14ms. Allocated memory was 52.4MB in the beginning and 71.3MB in the end (delta: 18.9MB). Free memory was 29.4MB in the beginning and 49.4MB in the end (delta: -20.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 335.30ms. Allocated memory is still 71.3MB. Free memory was 48.9MB in the beginning and 41.1MB in the end (delta: 7.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 11:00:38,643 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... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable