./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro --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 a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:09:20,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:09:20,280 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:09:20,312 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:09:20,312 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:09:20,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:09:20,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:09:20,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:09:20,328 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:09:20,335 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:09:20,337 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:09:20,338 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:09:20,340 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:09:20,343 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:09:20,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:09:20,346 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:09:20,349 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:09:20,350 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:09:20,352 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:09:20,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:09:20,363 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:09:20,365 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:09:20,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:09:20,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:09:20,371 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:09:20,378 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:09:20,379 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:09:20,380 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:09:20,380 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:09:20,382 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:09:20,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:09:20,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:09:20,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:09:20,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:09:20,389 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:09:20,390 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:09:20,390 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:09:20,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:09:20,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:09:20,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:09:20,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:09:20,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 21:09:20,429 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:09:20,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:09:20,430 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:09:20,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:09:20,432 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:09:20,432 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:09:20,433 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:09:20,433 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:09:20,433 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:09:20,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:09:20,434 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:09:20,435 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:09:20,435 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:09:20,435 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:09:20,435 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:09:20,436 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:09:20,436 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:09:20,436 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:09:20,436 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:09:20,436 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:09:20,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:09:20,437 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:09:20,437 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:09:20,437 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:09:20,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:09:20,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:09:20,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:09:20,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:09:20,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:09:20,440 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:09:20,440 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:09:20,441 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:09:20,441 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:09:20,441 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_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 [2022-11-18 21:09:20,700 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:09:20,721 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:09:20,724 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:09:20,725 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:09:20,726 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:09:20,728 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2022-11-18 21:09:20,817 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/data/73fd58142/1a08f4f2d3204ea1b6bda3168dfe59d8/FLAG7763afd4c [2022-11-18 21:09:21,287 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:09:21,287 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2022-11-18 21:09:21,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/data/73fd58142/1a08f4f2d3204ea1b6bda3168dfe59d8/FLAG7763afd4c [2022-11-18 21:09:21,640 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/data/73fd58142/1a08f4f2d3204ea1b6bda3168dfe59d8 [2022-11-18 21:09:21,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:09:21,646 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:09:21,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:09:21,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:09:21,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:09:21,655 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:09:21" (1/1) ... [2022-11-18 21:09:21,657 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19d80ae2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:21, skipping insertion in model container [2022-11-18 21:09:21,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:09:21" (1/1) ... [2022-11-18 21:09:21,669 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:09:21,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:09:21,989 WARN L234 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_cbaccd07-c294-440b-a689-5313be0030b8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2022-11-18 21:09:21,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:09:22,011 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:09:22,041 WARN L234 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_cbaccd07-c294-440b-a689-5313be0030b8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2022-11-18 21:09:22,046 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:09:22,078 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:09:22,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22 WrapperNode [2022-11-18 21:09:22,079 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:09:22,080 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:09:22,081 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:09:22,081 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:09:22,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (1/1) ... [2022-11-18 21:09:22,114 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (1/1) ... [2022-11-18 21:09:22,142 INFO L138 Inliner]: procedures = 18, calls = 37, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 108 [2022-11-18 21:09:22,142 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:09:22,143 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:09:22,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:09:22,144 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:09:22,156 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (1/1) ... [2022-11-18 21:09:22,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (1/1) ... [2022-11-18 21:09:22,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (1/1) ... [2022-11-18 21:09:22,160 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (1/1) ... [2022-11-18 21:09:22,168 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (1/1) ... [2022-11-18 21:09:22,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (1/1) ... [2022-11-18 21:09:22,175 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (1/1) ... [2022-11-18 21:09:22,176 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (1/1) ... [2022-11-18 21:09:22,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:09:22,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:09:22,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:09:22,180 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:09:22,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (1/1) ... [2022-11-18 21:09:22,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:09:22,207 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:09:22,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:09:22,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:09:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:09:22,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:09:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:09:22,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-18 21:09:22,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:09:22,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:09:22,299 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-18 21:09:22,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:09:22,435 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:09:22,444 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:09:22,683 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:09:22,692 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:09:22,693 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 21:09:22,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:09:22 BoogieIcfgContainer [2022-11-18 21:09:22,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:09:22,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:09:22,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:09:22,717 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:09:22,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:09:21" (1/3) ... [2022-11-18 21:09:22,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8ad867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:09:22, skipping insertion in model container [2022-11-18 21:09:22,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:22" (2/3) ... [2022-11-18 21:09:22,721 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e8ad867 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:09:22, skipping insertion in model container [2022-11-18 21:09:22,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:09:22" (3/3) ... [2022-11-18 21:09:22,727 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation.c.v+cfa-reducer.c [2022-11-18 21:09:22,761 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:09:22,761 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:09:22,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:09:22,904 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a11c6f5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:09:22,904 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:09:22,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:09:22,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 21:09:22,930 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:09:22,931 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:09:22,932 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:09:22,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:22,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1718991182, now seen corresponding path program 1 times [2022-11-18 21:09:22,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:22,959 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421428316] [2022-11-18 21:09:22,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:22,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:23,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:09:23,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:23,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421428316] [2022-11-18 21:09:23,534 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421428316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:23,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:23,535 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:09:23,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2025045158] [2022-11-18 21:09:23,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:23,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:09:23,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:23,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:09:23,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:09:23,612 INFO L87 Difference]: Start difference. First operand has 18 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:09:23,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:09:23,721 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2022-11-18 21:09:23,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:09:23,725 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 21:09:23,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:09:23,737 INFO L225 Difference]: With dead ends: 31 [2022-11-18 21:09:23,737 INFO L226 Difference]: Without dead ends: 15 [2022-11-18 21:09:23,741 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:09:23,746 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 30 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:09:23,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 65 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:09:23,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-18 21:09:23,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 21:09:23,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 14 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:09:23,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-11-18 21:09:23,819 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-11-18 21:09:23,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:09:23,821 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-11-18 21:09:23,822 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:09:23,822 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-11-18 21:09:23,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 21:09:23,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:09:23,824 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:09:23,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:09:23,825 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:09:23,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:23,826 INFO L85 PathProgramCache]: Analyzing trace with hash 1736001843, now seen corresponding path program 1 times [2022-11-18 21:09:23,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:23,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443623067] [2022-11-18 21:09:23,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:23,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:23,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:09:23,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:09:23,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:09:23,980 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443623067] [2022-11-18 21:09:23,980 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443623067] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:09:23,980 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:09:23,980 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:09:23,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670448558] [2022-11-18 21:09:23,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:09:23,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:09:23,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:09:23,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:09:23,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:23,984 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:09:24,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:09:24,006 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2022-11-18 21:09:24,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:09:24,007 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 21:09:24,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:09:24,008 INFO L225 Difference]: With dead ends: 33 [2022-11-18 21:09:24,008 INFO L226 Difference]: Without dead ends: 25 [2022-11-18 21:09:24,009 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:09:24,011 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 10 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:09:24,012 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 27 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:09:24,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-18 21:09:24,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 16. [2022-11-18 21:09:24,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:09:24,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-11-18 21:09:24,026 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 12 [2022-11-18 21:09:24,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:09:24,027 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-11-18 21:09:24,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:09:24,027 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-11-18 21:09:24,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-18 21:09:24,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:09:24,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:09:24,028 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:09:24,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:09:24,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:24,029 INFO L85 PathProgramCache]: Analyzing trace with hash -842300589, now seen corresponding path program 1 times [2022-11-18 21:09:24,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:09:24,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891428787] [2022-11-18 21:09:24,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:24,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:09:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:09:24,049 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:09:24,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:09:24,092 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:09:24,093 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:09:24,094 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 21:09:24,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:09:24,100 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-18 21:09:24,113 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:09:24,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:09:24 BoogieIcfgContainer [2022-11-18 21:09:24,184 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:09:24,185 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:09:24,186 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:09:24,186 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:09:24,187 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:09:22" (3/4) ... [2022-11-18 21:09:24,190 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 21:09:24,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:09:24,191 INFO L158 Benchmark]: Toolchain (without parser) took 2545.89ms. Allocated memory is still 132.1MB. Free memory was 99.0MB in the beginning and 107.1MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:09:24,193 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:09:24,196 INFO L158 Benchmark]: CACSL2BoogieTranslator took 431.42ms. Allocated memory is still 132.1MB. Free memory was 98.6MB in the beginning and 108.5MB in the end (delta: -9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:09:24,203 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.21ms. Allocated memory is still 132.1MB. Free memory was 108.5MB in the beginning and 107.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:09:24,207 INFO L158 Benchmark]: Boogie Preprocessor took 35.68ms. Allocated memory is still 132.1MB. Free memory was 107.0MB in the beginning and 105.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:09:24,209 INFO L158 Benchmark]: RCFGBuilder took 516.55ms. Allocated memory is still 132.1MB. Free memory was 105.3MB in the beginning and 93.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 21:09:24,210 INFO L158 Benchmark]: TraceAbstraction took 1485.25ms. Allocated memory is still 132.1MB. Free memory was 93.1MB in the beginning and 107.7MB in the end (delta: -14.6MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. [2022-11-18 21:09:24,211 INFO L158 Benchmark]: Witness Printer took 5.35ms. Allocated memory is still 132.1MB. Free memory was 107.7MB in the beginning and 107.1MB in the end (delta: 668.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:09:24,215 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory was 55.3MB in the beginning and 55.2MB in the end (delta: 25.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 431.42ms. Allocated memory is still 132.1MB. Free memory was 98.6MB in the beginning and 108.5MB in the end (delta: -9.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.21ms. Allocated memory is still 132.1MB. Free memory was 108.5MB in the beginning and 107.0MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 35.68ms. Allocated memory is still 132.1MB. Free memory was 107.0MB in the beginning and 105.3MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 516.55ms. Allocated memory is still 132.1MB. Free memory was 105.3MB in the beginning and 93.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1485.25ms. Allocated memory is still 132.1MB. Free memory was 93.1MB in the beginning and 107.7MB in the end (delta: -14.6MB). Peak memory consumption was 44.7MB. Max. memory is 16.1GB. * Witness Printer took 5.35ms. Allocated memory is still 132.1MB. Free memory was 107.7MB in the beginning and 107.1MB in the end (delta: 668.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 51]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 33, overapproximation of someBinaryDOUBLEComparisonOperation at line 38, overapproximation of to_real at line 18, overapproximation of someBinaryArithmeticFLOAToperation at line 36. Possible FailurePath: [L12] int __return_125; [L1] int __return_main; VAL [__return_125=0, __return_main=0] [L15] int main__i; [L16] float main__z; [L17] float main__t; [L18] float main__min[5] = { 5, 10, 12, 30, 150 }; [L19] float main__max[5] = { 10, 12, 30, 150, 300 }; [L20] main__t = __VERIFIER_nondet_float() [L21] int main____CPAchecker_TMP_0; [L22] EXPR main__min[0] VAL [__return_125=0, __return_main=0, main__max={5:0}, main__min={4:0}, main__min[0]=55] [L22] COND TRUE main__t >= (main__min[0]) [L24] EXPR main__max[4UL] VAL [__return_125=0, __return_main=0, main__max={5:0}, main__max[4UL]=57, main__min={4:0}] [L24] COND TRUE main__t <= (main__max[4UL]) [L26] main____CPAchecker_TMP_0 = 1 VAL [__return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main__max={5:0}, main__min={4:0}] [L27] COND TRUE main____CPAchecker_TMP_0 != 0 [L29] main__i = 0 VAL [__return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L31] COND TRUE main__i < 5UL [L33] EXPR main__max[main__i] VAL [__return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__max[main__i]=56, main__min={4:0}] [L33] COND TRUE main__t <= (main__max[main__i]) [L36] EXPR main__min[main__i] [L36] EXPR main__max[main__i] [L36] EXPR main__min[main__i] [L36] main__z = (main__t - (main__min[main__i])) / ((main__max[main__i]) - (main__min[main__i])) [L37] int main____CPAchecker_TMP_1; VAL [__return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L38] COND FALSE !(main__z >= 0.0) VAL [__return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main__i=0, main__max={5:0}, main__min={4:0}] [L64] main____CPAchecker_TMP_1 = 0 VAL [__return_125=0, __return_main=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L45] int __tmp_1; [L46] __tmp_1 = main____CPAchecker_TMP_1 [L47] int __VERIFIER_assert__cond; [L48] __VERIFIER_assert__cond = __tmp_1 VAL [__return_125=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L49] COND TRUE __VERIFIER_assert__cond == 0 VAL [__return_125=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] [L51] reach_error() VAL [__return_125=0, __return_main=0, __tmp_1=0, __VERIFIER_assert__cond=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=0, main__i=0, main__max={5:0}, main__min={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 40 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 92 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 37 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 32 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 21:09:24,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/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/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro --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 a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:09:26,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:09:26,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:09:26,741 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:09:26,742 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:09:26,746 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:09:26,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:09:26,750 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:09:26,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:09:26,753 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:09:26,754 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:09:26,755 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:09:26,756 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:09:26,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:09:26,761 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:09:26,763 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:09:26,767 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:09:26,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:09:26,780 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:09:26,782 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:09:26,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:09:26,792 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:09:26,793 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:09:26,794 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:09:26,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:09:26,798 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:09:26,798 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:09:26,799 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:09:26,800 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:09:26,801 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:09:26,801 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:09:26,802 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:09:26,803 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:09:26,803 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:09:26,805 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:09:26,813 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:09:26,814 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:09:26,815 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:09:26,815 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:09:26,817 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:09:26,818 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:09:26,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-18 21:09:26,877 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:09:26,877 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:09:26,878 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:09:26,879 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:09:26,880 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:09:26,880 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:09:26,882 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:09:26,882 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:09:26,882 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:09:26,882 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:09:26,883 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:09:26,884 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:09:26,884 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:09:26,884 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:09:26,884 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:09:26,884 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:09:26,885 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 21:09:26,885 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 21:09:26,885 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 21:09:26,885 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:09:26,885 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:09:26,886 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:09:26,886 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:09:26,886 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:09:26,886 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:09:26,886 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:09:26,887 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:09:26,887 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:09:26,887 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:09:26,887 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:09:26,887 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 21:09:26,888 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 21:09:26,888 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:09:26,888 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:09:26,888 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:09:26,889 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 21:09:26,889 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_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8b1eb5a7109aada0c5a8e0cf18025c738de8d1a2cd1a38b7a389d7c7a6495a7 [2022-11-18 21:09:27,320 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:09:27,343 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:09:27,346 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:09:27,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:09:27,351 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:09:27,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2022-11-18 21:09:27,445 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/data/46dc6b5ab/b002d139a79f4880a40ab3f9093fc3fb/FLAGb016fb24f [2022-11-18 21:09:28,081 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:09:28,082 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c [2022-11-18 21:09:28,091 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/data/46dc6b5ab/b002d139a79f4880a40ab3f9093fc3fb/FLAGb016fb24f [2022-11-18 21:09:28,424 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/data/46dc6b5ab/b002d139a79f4880a40ab3f9093fc3fb [2022-11-18 21:09:28,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:09:28,429 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:09:28,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:09:28,431 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:09:28,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:09:28,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,439 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e5413d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28, skipping insertion in model container [2022-11-18 21:09:28,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:09:28,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:09:28,621 WARN L234 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_cbaccd07-c294-440b-a689-5313be0030b8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2022-11-18 21:09:28,628 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:09:28,641 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:09:28,695 WARN L234 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_cbaccd07-c294-440b-a689-5313be0030b8/sv-benchmarks/c/float-benchs/interpolation.c.v+cfa-reducer.c[1314,1327] [2022-11-18 21:09:28,698 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:09:28,722 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:09:28,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28 WrapperNode [2022-11-18 21:09:28,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:09:28,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:09:28,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:09:28,725 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:09:28,732 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,755 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,790 INFO L138 Inliner]: procedures = 19, calls = 37, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 109 [2022-11-18 21:09:28,791 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:09:28,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:09:28,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:09:28,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:09:28,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,831 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,833 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,834 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,849 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:09:28,850 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:09:28,850 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:09:28,851 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:09:28,851 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (1/1) ... [2022-11-18 21:09:28,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:09:28,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:09:28,895 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:09:28,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:09:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:09:28,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-18 21:09:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 21:09:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-18 21:09:28,946 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-18 21:09:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:09:28,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:09:28,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-18 21:09:29,067 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:09:29,070 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:09:31,952 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:09:31,959 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:09:31,959 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 21:09:31,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:09:31 BoogieIcfgContainer [2022-11-18 21:09:31,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:09:31,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:09:31,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:09:31,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:09:31,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:09:28" (1/3) ... [2022-11-18 21:09:31,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1fa020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:09:31, skipping insertion in model container [2022-11-18 21:09:31,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:09:28" (2/3) ... [2022-11-18 21:09:31,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1fa020 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:09:31, skipping insertion in model container [2022-11-18 21:09:31,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:09:31" (3/3) ... [2022-11-18 21:09:31,972 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation.c.v+cfa-reducer.c [2022-11-18 21:09:31,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:09:31,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:09:32,061 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:09:32,078 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@259cf97d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:09:32,078 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:09:32,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 16 states have (on average 1.5625) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:09:32,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 21:09:32,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:09:32,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:09:32,094 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:09:32,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:09:32,100 INFO L85 PathProgramCache]: Analyzing trace with hash 1718991182, now seen corresponding path program 1 times [2022-11-18 21:09:32,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:09:32,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1104005369] [2022-11-18 21:09:32,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:09:32,116 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:09:32,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:09:32,125 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:09:32,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 21:09:32,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 139 [2022-11-18 21:09:32,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:09:32,488 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) 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:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) 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) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-18 21:09:32,496 INFO L158 Benchmark]: Toolchain (without parser) took 4065.48ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 35.2MB in the beginning and 35.7MB in the end (delta: -440.5kB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2022-11-18 21:09:32,497 INFO L158 Benchmark]: CDTParser took 0.87ms. Allocated memory is still 56.6MB. Free memory was 37.8MB in the beginning and 37.7MB in the end (delta: 50.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:09:32,498 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.13ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 39.5MB in the end (delta: -4.5MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-11-18 21:09:32,499 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.65ms. Allocated memory is still 56.6MB. Free memory was 39.4MB in the beginning and 37.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:09:32,500 INFO L158 Benchmark]: Boogie Preprocessor took 58.23ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 36.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:09:32,508 INFO L158 Benchmark]: RCFGBuilder took 3111.43ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 36.0MB in the beginning and 48.0MB in the end (delta: -12.0MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-11-18 21:09:32,510 INFO L158 Benchmark]: TraceAbstraction took 529.89ms. Allocated memory is still 69.2MB. Free memory was 47.4MB in the beginning and 35.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 21:09:32,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.87ms. Allocated memory is still 56.6MB. Free memory was 37.8MB in the beginning and 37.7MB in the end (delta: 50.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 292.13ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 39.5MB in the end (delta: -4.5MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.65ms. Allocated memory is still 56.6MB. Free memory was 39.4MB in the beginning and 37.7MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.23ms. Allocated memory is still 56.6MB. Free memory was 37.7MB in the beginning and 36.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3111.43ms. Allocated memory was 56.6MB in the beginning and 69.2MB in the end (delta: 12.6MB). Free memory was 36.0MB in the beginning and 48.0MB in the end (delta: -12.0MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. * TraceAbstraction took 529.89ms. Allocated memory is still 69.2MB. Free memory was 47.4MB in the beginning and 35.7MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-18 21:09:32,598 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/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: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbaccd07-c294-440b-a689-5313be0030b8/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.