./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound5.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/lcm1_valuebound5.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 b9beb51effdee82b4310134cb32d53e13605899018e09b96f9d653f317c559bb --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:02:26,856 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:02:26,858 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:02:26,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:02:26,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:02:26,895 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:02:26,897 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:02:26,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:02:26,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:02:26,910 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:02:26,910 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:02:26,912 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:02:26,912 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:02:26,914 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:02:26,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:02:26,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:02:26,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:02:26,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:02:26,923 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:02:26,925 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:02:26,929 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:02:26,930 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:02:26,931 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:02:26,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:02:26,939 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:02:26,939 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:02:26,939 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:02:26,941 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:02:26,941 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:02:26,942 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:02:26,942 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:02:26,943 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:02:26,944 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:02:26,945 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:02:26,946 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:02:26,946 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:02:26,947 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:02:26,947 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:02:26,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:02:26,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:02:26,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:02:26,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:02:26,982 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:02:26,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:02:26,982 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:02:26,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:02:26,984 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:02:26,984 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:02:26,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:02:26,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:02:26,985 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:02:26,985 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:02:26,985 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:02:26,986 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:02:26,986 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:02:26,986 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:02:26,986 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:02:26,986 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:02:26,987 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:02:26,987 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:02:26,987 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:02:26,987 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:02:26,987 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:02:26,987 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:02:26,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:02:26,988 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:02:26,988 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:02:26,988 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:02:26,988 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:02:26,989 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:02:26,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:02:26,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:02:26,990 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:02:26,991 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:02:26,991 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:02:26,991 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:02:26,991 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9beb51effdee82b4310134cb32d53e13605899018e09b96f9d653f317c559bb [2021-12-15 11:02:27,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:02:27,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:02:27,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:02:27,270 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:02:27,271 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:02:27,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound5.c [2021-12-15 11:02:27,331 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4491e25b8/cc761b0756854566aeb7d63bf6f0c2c8/FLAGbb00d69ab [2021-12-15 11:02:27,723 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:02:27,724 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound5.c [2021-12-15 11:02:27,733 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4491e25b8/cc761b0756854566aeb7d63bf6f0c2c8/FLAGbb00d69ab [2021-12-15 11:02:27,750 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4491e25b8/cc761b0756854566aeb7d63bf6f0c2c8 [2021-12-15 11:02:27,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:02:27,756 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:02:27,758 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:02:27,758 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:02:27,761 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:02:27,762 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:02:27" (1/1) ... [2021-12-15 11:02:27,764 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3654caff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:27, skipping insertion in model container [2021-12-15 11:02:27,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:02:27" (1/1) ... [2021-12-15 11:02:27,770 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:02:27,791 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:02:27,977 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/lcm1_valuebound5.c[552,565] [2021-12-15 11:02:28,008 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:02:28,017 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:02:28,030 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/lcm1_valuebound5.c[552,565] [2021-12-15 11:02:28,051 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:02:28,064 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:02:28,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28 WrapperNode [2021-12-15 11:02:28,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:02:28,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:02:28,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:02:28,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:02:28,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,088 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,108 INFO L137 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2021-12-15 11:02:28,108 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:02:28,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:02:28,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:02:28,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:02:28,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,117 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,120 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,120 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,136 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,142 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,144 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:02:28,146 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:02:28,146 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:02:28,146 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:02:28,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,154 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:02:28,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:02:28,176 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 11:02:28,198 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 11:02:28,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:02:28,213 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 11:02:28,213 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 11:02:28,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:02:28,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:02:28,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:02:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 11:02:28,214 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 11:02:28,260 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:02:28,262 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:02:28,406 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:02:28,412 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:02:28,412 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 11:02:28,413 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:02:28 BoogieIcfgContainer [2021-12-15 11:02:28,413 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:02:28,415 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:02:28,415 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:02:28,418 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:02:28,418 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:02:27" (1/3) ... [2021-12-15 11:02:28,419 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb58cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:02:28, skipping insertion in model container [2021-12-15 11:02:28,435 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28" (2/3) ... [2021-12-15 11:02:28,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cb58cb1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:02:28, skipping insertion in model container [2021-12-15 11:02:28,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:02:28" (3/3) ... [2021-12-15 11:02:28,437 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm1_valuebound5.c [2021-12-15 11:02:28,442 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:02:28,442 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:02:28,488 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:02:28,517 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 11:02:28,518 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:02:28,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-15 11:02:28,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-15 11:02:28,536 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:02:28,537 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:02:28,537 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:02:28,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:02:28,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1807347491, now seen corresponding path program 1 times [2021-12-15 11:02:28,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:02:28,550 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040047938] [2021-12-15 11:02:28,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:02:28,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:02:28,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:02:28,599 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.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 11:02:28,608 INFO L158 Benchmark]: Toolchain (without parser) took 847.92ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 61.8MB in the beginning and 72.4MB in the end (delta: -10.6MB). Peak memory consumption was 11.7MB. Max. memory is 16.1GB. [2021-12-15 11:02:28,609 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 94.4MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:02:28,610 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.13ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 61.6MB in the beginning and 95.3MB in the end (delta: -33.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:02:28,611 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.47ms. Allocated memory is still 119.5MB. Free memory was 95.3MB in the beginning and 93.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:02:28,612 INFO L158 Benchmark]: Boogie Preprocessor took 36.00ms. Allocated memory is still 119.5MB. Free memory was 93.4MB in the beginning and 92.6MB in the end (delta: 883.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:02:28,612 INFO L158 Benchmark]: RCFGBuilder took 267.80ms. Allocated memory is still 119.5MB. Free memory was 91.9MB in the beginning and 82.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:02:28,617 INFO L158 Benchmark]: TraceAbstraction took 188.53ms. Allocated memory is still 119.5MB. Free memory was 81.4MB in the beginning and 72.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:02:28,623 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 94.4MB. Free memory is still 50.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.13ms. Allocated memory was 94.4MB in the beginning and 119.5MB in the end (delta: 25.2MB). Free memory was 61.6MB in the beginning and 95.3MB in the end (delta: -33.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.47ms. Allocated memory is still 119.5MB. Free memory was 95.3MB in the beginning and 93.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.00ms. Allocated memory is still 119.5MB. Free memory was 93.4MB in the beginning and 92.6MB in the end (delta: 883.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 267.80ms. Allocated memory is still 119.5MB. Free memory was 91.9MB in the beginning and 82.0MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 188.53ms. Allocated memory is still 119.5MB. Free memory was 81.4MB in the beginning and 72.4MB 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 11:02:28,664 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/lcm1_valuebound5.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 b9beb51effdee82b4310134cb32d53e13605899018e09b96f9d653f317c559bb --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:02:30,520 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:02:30,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:02:30,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:02:30,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:02:30,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:02:30,554 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:02:30,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:02:30,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:02:30,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:02:30,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:02:30,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:02:30,563 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:02:30,564 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:02:30,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:02:30,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:02:30,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:02:30,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:02:30,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:02:30,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:02:30,580 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:02:30,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:02:30,583 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:02:30,585 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:02:30,588 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:02:30,589 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:02:30,589 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:02:30,590 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:02:30,591 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:02:30,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:02:30,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:02:30,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:02:30,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:02:30,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:02:30,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:02:30,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:02:30,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:02:30,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:02:30,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:02:30,599 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:02:30,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:02:30,603 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:02:30,634 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:02:30,635 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:02:30,636 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:02:30,636 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:02:30,637 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:02:30,637 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:02:30,638 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:02:30,638 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:02:30,639 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:02:30,639 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:02:30,640 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:02:30,640 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:02:30,640 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:02:30,640 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:02:30,640 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:02:30,641 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:02:30,641 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:02:30,641 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:02:30,641 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:02:30,641 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:02:30,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:02:30,642 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:02:30,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:02:30,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:02:30,642 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:02:30,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:02:30,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:02:30,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:02:30,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:02:30,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:02:30,644 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:02:30,644 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:02:30,644 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:02:30,644 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:02:30,645 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:02:30,645 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:02:30,645 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:02:30,645 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b9beb51effdee82b4310134cb32d53e13605899018e09b96f9d653f317c559bb [2021-12-15 11:02:30,928 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:02:30,956 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:02:30,959 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:02:30,960 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:02:30,961 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:02:30,962 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound5.c [2021-12-15 11:02:31,010 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c026d8190/cbc6a9b310ae4b5dae288a7e537b1442/FLAG92f826273 [2021-12-15 11:02:31,456 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:02:31,457 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound5.c [2021-12-15 11:02:31,464 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c026d8190/cbc6a9b310ae4b5dae288a7e537b1442/FLAG92f826273 [2021-12-15 11:02:31,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c026d8190/cbc6a9b310ae4b5dae288a7e537b1442 [2021-12-15 11:02:31,484 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:02:31,485 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:02:31,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:02:31,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:02:31,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:02:31,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a3dadf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31, skipping insertion in model container [2021-12-15 11:02:31,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:02:31,519 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:02:31,654 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/lcm1_valuebound5.c[552,565] [2021-12-15 11:02:31,683 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:02:31,692 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:02:31,706 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/lcm1_valuebound5.c[552,565] [2021-12-15 11:02:31,720 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:02:31,731 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:02:31,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31 WrapperNode [2021-12-15 11:02:31,731 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:02:31,732 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:02:31,732 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:02:31,733 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:02:31,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,742 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,760 INFO L137 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2021-12-15 11:02:31,760 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:02:31,761 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:02:31,761 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:02:31,761 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:02:31,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,793 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,804 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,806 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:02:31,808 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:02:31,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:02:31,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:02:31,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31" (1/1) ... [2021-12-15 11:02:31,817 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:02:31,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:02:31,840 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 11:02:31,852 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 11:02:31,892 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:02:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:02:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 11:02:31,893 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 11:02:31,893 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:02:31,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:02:31,894 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 11:02:31,894 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 11:02:31,958 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:02:31,960 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:02:32,096 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:02:32,101 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:02:32,101 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 11:02:32,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:02:32 BoogieIcfgContainer [2021-12-15 11:02:32,103 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:02:32,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:02:32,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:02:32,107 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:02:32,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:02:31" (1/3) ... [2021-12-15 11:02:32,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c09991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:02:32, skipping insertion in model container [2021-12-15 11:02:32,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:31" (2/3) ... [2021-12-15 11:02:32,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36c09991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:02:32, skipping insertion in model container [2021-12-15 11:02:32,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:02:32" (3/3) ... [2021-12-15 11:02:32,122 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm1_valuebound5.c [2021-12-15 11:02:32,126 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:02:32,126 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:02:32,181 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:02:32,187 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 11:02:32,188 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:02:32,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 20 states have (on average 1.6) internal successors, (32), 21 states have internal predecessors, (32), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2021-12-15 11:02:32,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-15 11:02:32,212 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:02:32,213 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 11:02:32,214 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:02:32,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:02:32,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1807347491, now seen corresponding path program 1 times [2021-12-15 11:02:32,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:02:32,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1080602553] [2021-12-15 11:02:32,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:02:32,235 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:02:32,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:02:32,237 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 11:02:32,239 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 11:02:32,289 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 11:02:32,487 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 11:02:32,488 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 11:02:32,494 INFO L158 Benchmark]: Toolchain (without parser) took 1008.03ms. Allocated memory is still 56.6MB. Free memory was 41.6MB in the beginning and 38.4MB in the end (delta: 3.2MB). Peak memory consumption was 17.1MB. Max. memory is 16.1GB. [2021-12-15 11:02:32,496 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:02:32,496 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.57ms. Allocated memory is still 56.6MB. Free memory was 41.4MB in the beginning and 30.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 11:02:32,497 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.21ms. Allocated memory is still 56.6MB. Free memory was 30.7MB in the beginning and 29.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:02:32,498 INFO L158 Benchmark]: Boogie Preprocessor took 46.63ms. Allocated memory is still 56.6MB. Free memory was 29.1MB in the beginning and 27.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:02:32,498 INFO L158 Benchmark]: RCFGBuilder took 294.80ms. Allocated memory is still 56.6MB. Free memory was 27.9MB in the beginning and 33.2MB in the end (delta: -5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 11:02:32,499 INFO L158 Benchmark]: TraceAbstraction took 388.35ms. Allocated memory is still 56.6MB. Free memory was 32.5MB in the beginning and 38.4MB in the end (delta: -5.9MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2021-12-15 11:02:32,502 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 46.1MB. Free memory was 28.4MB in the beginning and 28.4MB in the end (delta: 52.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.57ms. Allocated memory is still 56.6MB. Free memory was 41.4MB in the beginning and 30.7MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.21ms. Allocated memory is still 56.6MB. Free memory was 30.7MB in the beginning and 29.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.63ms. Allocated memory is still 56.6MB. Free memory was 29.1MB in the beginning and 27.9MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 294.80ms. Allocated memory is still 56.6MB. Free memory was 27.9MB in the beginning and 33.2MB in the end (delta: -5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * TraceAbstraction took 388.35ms. Allocated memory is still 56.6MB. Free memory was 32.5MB in the beginning and 38.4MB in the end (delta: -5.9MB). Peak memory consumption was 9.2MB. 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 11:02:32,545 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