./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/lcm1_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/lcm1_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 d9f362f4d0f0336cfdd0e79a1ea9315dacff2e0b1a7a8f92f9aba0a2584524ed --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:02:24,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:02:24,304 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:02:24,354 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:02:24,355 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:02:24,356 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:02:24,358 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:02:24,359 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:02:24,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:02:24,361 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:02:24,361 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:02:24,362 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:02:24,362 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:02:24,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:02:24,363 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:02:24,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:02:24,365 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:02:24,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:02:24,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:02:24,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:02:24,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:02:24,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:02:24,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:02:24,370 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:02:24,372 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:02:24,372 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:02:24,372 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:02:24,373 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:02:24,373 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:02:24,374 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:02:24,374 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:02:24,374 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:02:24,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:02:24,375 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:02:24,376 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:02:24,376 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:02:24,377 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:02:24,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:02:24,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:02:24,377 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:02:24,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:02:24,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 11:02:24,394 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:02:24,394 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:02:24,395 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:02:24,395 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:02:24,395 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:02:24,396 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:02:24,396 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:02:24,396 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:02:24,396 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:02:24,396 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:02:24,397 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:02:24,397 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 11:02:24,397 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:02:24,397 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:02:24,398 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:02:24,398 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:02:24,398 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:02:24,398 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:02:24,398 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:02:24,398 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:02:24,398 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:02:24,399 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:02:24,399 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:02:24,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:02:24,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:02:24,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:02:24,400 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:02:24,400 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:02:24,400 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 11:02:24,400 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 11:02:24,400 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:02:24,400 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:02:24,400 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:02:24,401 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:02:24,401 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9f362f4d0f0336cfdd0e79a1ea9315dacff2e0b1a7a8f92f9aba0a2584524ed [2021-12-15 11:02:24,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:02:24,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:02:24,616 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:02:24,617 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:02:24,617 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:02:24,618 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound2.c [2021-12-15 11:02:24,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11fe6af9d/f3a8d7478c754594b1ce9b12345c8009/FLAG7afef85ba [2021-12-15 11:02:25,045 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:02:25,045 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound2.c [2021-12-15 11:02:25,054 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11fe6af9d/f3a8d7478c754594b1ce9b12345c8009/FLAG7afef85ba [2021-12-15 11:02:25,466 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11fe6af9d/f3a8d7478c754594b1ce9b12345c8009 [2021-12-15 11:02:25,468 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:02:25,469 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:02:25,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:02:25,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:02:25,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:02:25,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c01c14b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25, skipping insertion in model container [2021-12-15 11:02:25,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,478 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:02:25,491 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:02:25,605 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_valuebound2.c[552,565] [2021-12-15 11:02:25,617 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:02:25,629 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:02:25,638 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_valuebound2.c[552,565] [2021-12-15 11:02:25,645 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:02:25,655 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:02:25,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25 WrapperNode [2021-12-15 11:02:25,655 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:02:25,656 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:02:25,656 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:02:25,656 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:02:25,661 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,682 INFO L137 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2021-12-15 11:02:25,683 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:02:25,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:02:25,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:02:25,683 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:02:25,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,691 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,692 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,694 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:02:25,707 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:02:25,708 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:02:25,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:02:25,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25" (1/1) ... [2021-12-15 11:02:25,714 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:02:25,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:02:25,733 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 11:02:25,735 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 11:02:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:02:25,764 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 11:02:25,765 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 11:02:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 11:02:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:02:25,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:02:25,765 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 11:02:25,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 11:02:25,810 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:02:25,812 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:02:25,904 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:02:25,909 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:02:25,910 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 11:02:25,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:02:25 BoogieIcfgContainer [2021-12-15 11:02:25,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:02:25,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:02:25,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:02:25,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:02:25,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:02:25" (1/3) ... [2021-12-15 11:02:25,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eb22b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:02:25, skipping insertion in model container [2021-12-15 11:02:25,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:25" (2/3) ... [2021-12-15 11:02:25,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eb22b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:02:25, skipping insertion in model container [2021-12-15 11:02:25,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:02:25" (3/3) ... [2021-12-15 11:02:25,923 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm1_valuebound2.c [2021-12-15 11:02:25,928 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:02:25,928 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:02:25,960 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:02:25,965 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 11:02:25,966 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:02:25,976 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 11:02:25,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-15 11:02:25,989 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:02:25,990 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 11:02:25,991 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:02:25,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:02:25,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1807347491, now seen corresponding path program 1 times [2021-12-15 11:02:26,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 11:02:26,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643137375] [2021-12-15 11:02:26,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:02:26,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 11:02:26,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 11:02:26,050 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 11:02:26,058 INFO L158 Benchmark]: Toolchain (without parser) took 588.13ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 49.6MB in the end (delta: 14.7MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2021-12-15 11:02:26,059 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 77.6MB. Free memory was 48.4MB in the beginning and 48.4MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:02:26,059 INFO L158 Benchmark]: CACSL2BoogieTranslator took 185.31ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 72.1MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:02:26,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.74ms. Allocated memory is still 94.4MB. Free memory was 71.8MB in the beginning and 70.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:02:26,060 INFO L158 Benchmark]: Boogie Preprocessor took 23.64ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 69.1MB in the end (delta: 885.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:02:26,061 INFO L158 Benchmark]: RCFGBuilder took 203.85ms. Allocated memory is still 94.4MB. Free memory was 69.1MB in the beginning and 59.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:02:26,065 INFO L158 Benchmark]: TraceAbstraction took 143.85ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 49.6MB in the end (delta: 9.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:02:26,070 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 77.6MB. Free memory was 48.4MB in the beginning and 48.4MB in the end (delta: 27.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 185.31ms. Allocated memory is still 94.4MB. Free memory was 64.2MB in the beginning and 72.1MB in the end (delta: -7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.74ms. Allocated memory is still 94.4MB. Free memory was 71.8MB in the beginning and 70.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.64ms. Allocated memory is still 94.4MB. Free memory was 70.0MB in the beginning and 69.1MB in the end (delta: 885.1kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 203.85ms. Allocated memory is still 94.4MB. Free memory was 69.1MB in the beginning and 59.2MB in the end (delta: 9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 143.85ms. Allocated memory is still 94.4MB. Free memory was 58.6MB in the beginning and 49.6MB in the end (delta: 9.1MB). 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 11:02:26,120 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_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 d9f362f4d0f0336cfdd0e79a1ea9315dacff2e0b1a7a8f92f9aba0a2584524ed --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 11:02:27,782 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 11:02:27,783 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 11:02:27,801 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 11:02:27,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 11:02:27,806 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 11:02:27,808 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 11:02:27,810 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 11:02:27,812 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 11:02:27,814 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 11:02:27,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 11:02:27,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 11:02:27,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 11:02:27,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 11:02:27,822 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 11:02:27,824 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 11:02:27,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 11:02:27,825 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 11:02:27,829 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 11:02:27,832 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 11:02:27,835 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 11:02:27,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 11:02:27,838 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 11:02:27,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 11:02:27,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 11:02:27,843 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 11:02:27,843 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 11:02:27,844 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 11:02:27,844 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 11:02:27,845 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 11:02:27,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 11:02:27,845 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 11:02:27,846 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 11:02:27,848 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 11:02:27,849 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 11:02:27,850 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 11:02:27,851 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 11:02:27,851 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 11:02:27,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 11:02:27,852 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 11:02:27,853 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 11:02:27,854 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 11:02:27,878 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 11:02:27,880 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 11:02:27,881 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 11:02:27,881 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 11:02:27,882 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 11:02:27,882 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 11:02:27,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 11:02:27,883 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 11:02:27,883 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 11:02:27,883 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 11:02:27,884 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 11:02:27,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 11:02:27,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 11:02:27,885 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 11:02:27,885 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 11:02:27,885 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 11:02:27,885 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 11:02:27,885 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 11:02:27,885 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 11:02:27,885 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 11:02:27,886 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 11:02:27,886 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 11:02:27,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 11:02:27,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 11:02:27,894 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 11:02:27,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 11:02:27,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:02:27,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 11:02:27,894 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 11:02:27,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 11:02:27,895 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 11:02:27,895 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 11:02:27,895 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 11:02:27,895 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 11:02:27,896 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 11:02:27,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 11:02:27,896 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 11:02:27,896 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d9f362f4d0f0336cfdd0e79a1ea9315dacff2e0b1a7a8f92f9aba0a2584524ed [2021-12-15 11:02:28,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 11:02:28,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 11:02:28,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 11:02:28,214 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 11:02:28,215 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 11:02:28,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound2.c [2021-12-15 11:02:28,289 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a41d4444/b750f562f4e34ca5a0a9814b8092ce19/FLAGf13ea90b2 [2021-12-15 11:02:28,681 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 11:02:28,682 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/lcm1_valuebound2.c [2021-12-15 11:02:28,687 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a41d4444/b750f562f4e34ca5a0a9814b8092ce19/FLAGf13ea90b2 [2021-12-15 11:02:28,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a41d4444/b750f562f4e34ca5a0a9814b8092ce19 [2021-12-15 11:02:28,704 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 11:02:28,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 11:02:28,708 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 11:02:28,708 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 11:02:28,711 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 11:02:28,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,713 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12562e17 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28, skipping insertion in model container [2021-12-15 11:02:28,713 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 11:02:28" (1/1) ... [2021-12-15 11:02:28,719 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 11:02:28,736 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 11:02:28,884 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_valuebound2.c[552,565] [2021-12-15 11:02:28,908 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:02:28,933 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 11:02:28,955 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_valuebound2.c[552,565] [2021-12-15 11:02:28,979 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 11:02:28,990 INFO L208 MainTranslator]: Completed translation [2021-12-15 11:02:28,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 11:02:28 WrapperNode [2021-12-15 11:02:28,992 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 11:02:28,993 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 11:02:28,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 11:02:28,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 11:02:28,998 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 11:02:29,010 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 11:02:29,027 INFO L137 Inliner]: procedures = 14, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 66 [2021-12-15 11:02:29,028 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 11:02:29,028 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 11:02:29,028 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 11:02:29,029 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 11:02:29,034 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 11:02:29,034 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 11:02:29,038 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 11:02:29,038 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 11:02:29,048 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 11:02:29,052 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 11:02:29,059 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 11:02:29,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 11:02:29,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 11:02:29,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 11:02:29,064 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 11:02:29,065 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 11:02:29,069 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 11:02:29,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 11:02:29,088 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 11:02:29,109 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 11:02:29,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 11:02:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 11:02:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-15 11:02:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-15 11:02:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 11:02:29,124 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 11:02:29,124 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2021-12-15 11:02:29,125 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2021-12-15 11:02:29,176 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 11:02:29,178 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 11:02:29,299 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 11:02:29,303 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 11:02:29,304 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 11:02:29,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:02:29 BoogieIcfgContainer [2021-12-15 11:02:29,328 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 11:02:29,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 11:02:29,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 11:02:29,331 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 11:02:29,332 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 11:02:28" (1/3) ... [2021-12-15 11:02:29,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45829833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:02:29, skipping insertion in model container [2021-12-15 11:02:29,332 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 11:02:29,332 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45829833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 11:02:29, skipping insertion in model container [2021-12-15 11:02:29,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 11:02:29" (3/3) ... [2021-12-15 11:02:29,333 INFO L111 eAbstractionObserver]: Analyzing ICFG lcm1_valuebound2.c [2021-12-15 11:02:29,337 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 11:02:29,337 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 11:02:29,385 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 11:02:29,392 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 11:02:29,394 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 11:02:29,408 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 11:02:29,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-12-15 11:02:29,413 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 11:02:29,414 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 11:02:29,415 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 11:02:29,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 11:02:29,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1807347491, now seen corresponding path program 1 times [2021-12-15 11:02:29,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 11:02:29,431 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082248534] [2021-12-15 11:02:29,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 11:02:29,432 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 11:02:29,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 11:02:29,435 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 11:02:29,463 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 11:02:29,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-12-15 11:02:29,706 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 11:02:29,707 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 11:02:29,713 INFO L158 Benchmark]: Toolchain (without parser) took 1006.62ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.6MB in the beginning and 43.4MB in the end (delta: -7.8MB). Peak memory consumption was 4.8MB. Max. memory is 16.1GB. [2021-12-15 11:02:29,713 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:02:29,714 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.07ms. Allocated memory is still 56.6MB. Free memory was 35.4MB in the beginning and 39.2MB in the end (delta: -3.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 11:02:29,714 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.39ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 37.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 11:02:29,715 INFO L158 Benchmark]: Boogie Preprocessor took 33.77ms. Allocated memory is still 56.6MB. Free memory was 37.6MB in the beginning and 36.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 11:02:29,716 INFO L158 Benchmark]: RCFGBuilder took 265.63ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 36.3MB in the beginning and 51.9MB in the end (delta: -15.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2021-12-15 11:02:29,717 INFO L158 Benchmark]: TraceAbstraction took 381.49ms. Allocated memory is still 69.2MB. Free memory was 51.4MB in the beginning and 43.4MB in the end (delta: 7.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 11:02:29,719 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 56.6MB. Free memory was 38.7MB in the beginning and 38.6MB in the end (delta: 44.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.07ms. Allocated memory is still 56.6MB. Free memory was 35.4MB in the beginning and 39.2MB in the end (delta: -3.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 34.39ms. Allocated memory is still 56.6MB. Free memory was 39.2MB in the beginning and 37.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 33.77ms. Allocated memory is still 56.6MB. Free memory was 37.6MB in the beginning and 36.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 265.63ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 36.3MB in the beginning and 51.9MB in the end (delta: -15.5MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. * TraceAbstraction took 381.49ms. Allocated memory is still 69.2MB. Free memory was 51.4MB in the beginning and 43.4MB in the end (delta: 7.9MB). 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 11:02:29,744 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