./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6a47aea7 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:05:20,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:05:20,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:05:20,545 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:05:20,546 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:05:20,548 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:05:20,550 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:05:20,552 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:05:20,555 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:05:20,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:05:20,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:05:20,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:05:20,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:05:20,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:05:20,563 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:05:20,565 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:05:20,566 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:05:20,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:05:20,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:05:20,575 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:05:20,582 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:05:20,584 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:05:20,594 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:05:20,595 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:05:20,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:05:20,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:05:20,603 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:05:20,604 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:05:20,605 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:05:20,607 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:05:20,608 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:05:20,610 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:05:20,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:05:20,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:05:20,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:05:20,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:05:20,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:05:20,615 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:05:20,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:05:20,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:05:20,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:05:20,618 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Default.epf [2021-11-23 15:05:20,669 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:05:20,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:05:20,671 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:05:20,672 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:05:20,672 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:05:20,673 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:05:20,673 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:05:20,673 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:05:20,680 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 15:05:20,680 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:05:20,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:05:20,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:05:20,682 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:05:20,682 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:05:20,682 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:05:20,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:05:20,683 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:05:20,683 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:05:20,683 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:05:20,683 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:05:20,684 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:05:20,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:20,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:05:20,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:05:20,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:05:20,685 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2021-11-23 15:05:20,685 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 15:05:20,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:05:20,686 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd [2021-11-23 15:05:20,940 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:05:20,960 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:05:20,963 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:05:20,965 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:05:20,966 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:05:20,967 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/float-benchs/interpolation.c [2021-11-23 15:05:21,041 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/data/1e9c66838/cc394ce9977740bcb027a752c39ec878/FLAGab265c35b [2021-11-23 15:05:21,554 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:05:21,555 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/sv-benchmarks/c/float-benchs/interpolation.c [2021-11-23 15:05:21,561 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/data/1e9c66838/cc394ce9977740bcb027a752c39ec878/FLAGab265c35b [2021-11-23 15:05:21,914 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/data/1e9c66838/cc394ce9977740bcb027a752c39ec878 [2021-11-23 15:05:21,919 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:05:21,921 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:05:21,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:21,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:05:21,928 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:05:21,929 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:21" (1/1) ... [2021-11-23 15:05:21,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77022674 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:21, skipping insertion in model container [2021-11-23 15:05:21,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:21" (1/1) ... [2021-11-23 15:05:21,942 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:05:21,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:05:22,138 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2021-11-23 15:05:22,184 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:22,195 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:05:22,212 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2021-11-23 15:05:22,244 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:22,261 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:05:22,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:22 WrapperNode [2021-11-23 15:05:22,262 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:22,263 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:22,264 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:05:22,265 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:05:22,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:22" (1/1) ... [2021-11-23 15:05:22,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:22" (1/1) ... [2021-11-23 15:05:22,324 INFO L137 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2021-11-23 15:05:22,325 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:22,326 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:05:22,326 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:05:22,326 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:05:22,335 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:22" (1/1) ... [2021-11-23 15:05:22,335 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:22" (1/1) ... [2021-11-23 15:05:22,341 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:22" (1/1) ... [2021-11-23 15:05:22,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:22" (1/1) ... [2021-11-23 15:05:22,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:22" (1/1) ... [2021-11-23 15:05:22,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:22" (1/1) ... [2021-11-23 15:05:22,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:22" (1/1) ... [2021-11-23 15:05:22,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:05:22,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:05:22,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:05:22,379 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:05:22,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:22" (1/1) ... [2021-11-23 15:05:22,388 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:22,402 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:05:22,420 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:05:22,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:05:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:05:22,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 15:05:22,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:05:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-11-23 15:05:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:05:22,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:05:22,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2021-11-23 15:05:22,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:05:22,575 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:05:22,576 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:05:22,733 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:05:22,757 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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) [2021-11-23 15:05:22,762 INFO L158 Benchmark]: Toolchain (without parser) took 839.49ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 69.2MB in the beginning and 90.1MB in the end (delta: -20.9MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2021-11-23 15:05:22,763 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:22,764 INFO L158 Benchmark]: CACSL2BoogieTranslator took 337.95ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 68.8MB in the beginning and 103.6MB in the end (delta: -34.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 15:05:22,765 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.49ms. Allocated memory is still 130.0MB. Free memory was 103.6MB in the beginning and 102.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:22,766 INFO L158 Benchmark]: Boogie Preprocessor took 51.08ms. Allocated memory is still 130.0MB. Free memory was 102.1MB in the beginning and 100.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:22,767 INFO L158 Benchmark]: RCFGBuilder took 382.45ms. Allocated memory is still 130.0MB. Free memory was 100.5MB in the beginning and 90.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:05:22,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 98.6MB. Free memory is still 52.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 337.95ms. Allocated memory was 98.6MB in the beginning and 130.0MB in the end (delta: 31.5MB). Free memory was 68.8MB in the beginning and 103.6MB in the end (delta: -34.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.49ms. Allocated memory is still 130.0MB. Free memory was 103.6MB in the beginning and 102.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.08ms. Allocated memory is still 130.0MB. Free memory was 102.1MB in the beginning and 100.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 382.45ms. Allocated memory is still 130.0MB. Free memory was 100.5MB in the beginning and 90.1MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:05:22,817 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/config/KojakReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu --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 Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd --- Real Ultimate output --- This is Ultimate 0.2.2-dev-6a47aea [2021-11-23 15:05:25,291 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 15:05:25,297 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 15:05:25,342 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 15:05:25,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 15:05:25,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 15:05:25,350 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 15:05:25,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 15:05:25,361 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 15:05:25,367 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 15:05:25,371 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 15:05:25,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 15:05:25,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 15:05:25,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 15:05:25,379 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 15:05:25,385 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 15:05:25,386 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 15:05:25,388 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 15:05:25,399 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 15:05:25,404 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 15:05:25,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 15:05:25,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 15:05:25,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 15:05:25,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 15:05:25,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 15:05:25,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 15:05:25,429 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 15:05:25,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 15:05:25,432 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 15:05:25,433 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 15:05:25,434 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 15:05:25,435 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 15:05:25,437 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 15:05:25,438 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 15:05:25,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 15:05:25,440 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 15:05:25,442 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 15:05:25,442 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 15:05:25,442 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 15:05:25,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 15:05:25,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 15:05:25,446 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/config/svcomp-Reach-32bit-Kojak_Bitvector.epf [2021-11-23 15:05:25,493 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 15:05:25,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 15:05:25,495 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-23 15:05:25,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2021-11-23 15:05:25,497 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 15:05:25,497 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 15:05:25,498 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 15:05:25,498 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 15:05:25,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 15:05:25,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 15:05:25,500 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 15:05:25,500 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 15:05:25,500 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 15:05:25,500 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-23 15:05:25,501 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-23 15:05:25,501 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-23 15:05:25,501 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 15:05:25,501 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 15:05:25,502 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 15:05:25,502 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 15:05:25,502 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2021-11-23 15:05:25,502 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2021-11-23 15:05:25,503 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 15:05:25,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:25,503 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 15:05:25,504 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 15:05:25,504 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 15:05:25,504 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-23 15:05:25,504 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-23 15:05:25,504 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 15:05:25,505 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2021-11-23 15:05:25,505 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-23 15:05:25,505 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd [2021-11-23 15:05:25,919 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 15:05:25,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 15:05:25,947 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 15:05:25,948 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 15:05:25,949 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 15:05:25,951 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/../../sv-benchmarks/c/float-benchs/interpolation.c [2021-11-23 15:05:26,017 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/data/2700216ad/c46e7fb7993c404c9946db207096310f/FLAG61cc7bfdd [2021-11-23 15:05:26,629 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 15:05:26,630 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/sv-benchmarks/c/float-benchs/interpolation.c [2021-11-23 15:05:26,636 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/data/2700216ad/c46e7fb7993c404c9946db207096310f/FLAG61cc7bfdd [2021-11-23 15:05:27,014 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/data/2700216ad/c46e7fb7993c404c9946db207096310f [2021-11-23 15:05:27,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 15:05:27,018 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 15:05:27,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:27,020 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 15:05:27,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 15:05:27,025 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,028 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7045fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27, skipping insertion in model container [2021-11-23 15:05:27,028 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,035 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 15:05:27,050 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 15:05:27,195 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2021-11-23 15:05:27,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:27,233 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 15:05:27,256 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2021-11-23 15:05:27,307 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 15:05:27,323 INFO L208 MainTranslator]: Completed translation [2021-11-23 15:05:27,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27 WrapperNode [2021-11-23 15:05:27,324 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 15:05:27,325 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:27,325 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 15:05:27,326 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 15:05:27,334 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,345 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,368 INFO L137 Inliner]: procedures = 19, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2021-11-23 15:05:27,369 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 15:05:27,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 15:05:27,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 15:05:27,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 15:05:27,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,411 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,419 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 15:05:27,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 15:05:27,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 15:05:27,444 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 15:05:27,445 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:05:27" (1/1) ... [2021-11-23 15:05:27,453 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2021-11-23 15:05:27,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/z3 [2021-11-23 15:05:27,481 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2021-11-23 15:05:27,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2021-11-23 15:05:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 15:05:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2021-11-23 15:05:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-23 15:05:27,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 15:05:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2021-11-23 15:05:27,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 15:05:27,537 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 15:05:27,538 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 15:05:27,642 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 15:05:27,643 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 15:05:29,458 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 15:05:29,519 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.addBranchEncoders(TransFormulaBuilder.java:170) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.parallelComposition(TransFormulaUtils.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.ParallelComposition.(ParallelComposition.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CodeBlockFactory.constructParallelComposition(CodeBlockFactory.java:109) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.composeParallel(CfgBuilder.java:1792) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder$LargeBlockEncoding.(CfgBuilder.java:1653) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.CfgBuilder.createIcfg(CfgBuilder.java:280) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBuilderObserver.process(RCFGBuilderObserver.java:88) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$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) [2021-11-23 15:05:29,523 INFO L158 Benchmark]: Toolchain (without parser) took 2503.94ms. Allocated memory is still 60.8MB. Free memory was 40.2MB in the beginning and 26.7MB in the end (delta: 13.5MB). Peak memory consumption was 11.4MB. Max. memory is 16.1GB. [2021-11-23 15:05:29,524 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 60.8MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:29,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 304.82ms. Allocated memory is still 60.8MB. Free memory was 40.0MB in the beginning and 43.8MB in the end (delta: -3.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 15:05:29,526 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.35ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 41.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 15:05:29,527 INFO L158 Benchmark]: Boogie Preprocessor took 71.07ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 40.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 15:05:29,529 INFO L158 Benchmark]: RCFGBuilder took 2079.08ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 26.7MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-11-23 15:05:29,541 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 60.8MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 304.82ms. Allocated memory is still 60.8MB. Free memory was 40.0MB in the beginning and 43.8MB in the end (delta: -3.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.35ms. Allocated memory is still 60.8MB. Free memory was 43.6MB in the beginning and 41.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 71.07ms. Allocated memory is still 60.8MB. Free memory was 41.8MB in the beginning and 40.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2079.08ms. Allocated memory is still 60.8MB. Free memory was 40.5MB in the beginning and 26.7MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.addAll(ImmutableSet.java:313) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-11-23 15:05:29,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_af7a9c22-83ec-422c-ba52-956c2acf68b8/bin/ukojak-CwSLpZB5Qu/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (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