./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cdfpl/square_1.i --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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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 14ef7b4695081d3e006bc43e895bc31c74bdc7ec3cae3cedfb7a87dd07fa43f0 --- 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 20:04:05,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:04:05,252 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:04:05,290 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:04:05,291 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:04:05,292 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:04:05,293 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:04:05,299 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:04:05,302 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:04:05,308 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:04:05,310 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:04:05,311 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:04:05,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:04:05,315 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:04:05,317 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:04:05,319 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:04:05,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:04:05,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:04:05,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:04:05,331 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:04:05,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:04:05,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:04:05,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:04:05,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:04:05,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:04:05,350 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:04:05,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:04:05,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:04:05,353 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:04:05,355 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:04:05,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:04:05,357 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:04:05,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:04:05,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:04:05,363 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:04:05,364 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:04:05,364 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:04:05,365 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:04:05,365 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:04:05,366 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:04:05,367 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:04:05,368 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 20:04:05,413 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:04:05,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:04:05,414 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:04:05,414 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:04:05,415 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:04:05,416 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:04:05,416 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:04:05,417 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:04:05,417 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:04:05,417 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:04:05,419 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:04:05,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 20:04:05,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:04:05,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:04:05,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:04:05,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:04:05,421 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:04:05,421 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:04:05,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:04:05,421 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:04:05,422 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:04:05,422 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:04:05,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:04:05,423 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:04:05,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:04:05,423 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:04:05,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:04:05,424 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:04:05,424 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 20:04:05,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 20:04:05,425 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:04:05,425 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:04:05,426 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:04:05,426 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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14ef7b4695081d3e006bc43e895bc31c74bdc7ec3cae3cedfb7a87dd07fa43f0 [2022-11-18 20:04:05,768 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:04:05,792 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:04:05,794 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:04:05,796 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:04:05,797 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:04:05,798 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/floats-cdfpl/square_1.i [2022-11-18 20:04:05,884 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/data/4bccddacc/993e0ca33283454fadbdbf5511ccec85/FLAGbb7cacabb [2022-11-18 20:04:06,476 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:04:06,477 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/sv-benchmarks/c/floats-cdfpl/square_1.i [2022-11-18 20:04:06,484 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/data/4bccddacc/993e0ca33283454fadbdbf5511ccec85/FLAGbb7cacabb [2022-11-18 20:04:06,836 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/data/4bccddacc/993e0ca33283454fadbdbf5511ccec85 [2022-11-18 20:04:06,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:04:06,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:04:06,848 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:04:06,848 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:04:06,852 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:04:06,853 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:04:06" (1/1) ... [2022-11-18 20:04:06,855 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63dd223f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:06, skipping insertion in model container [2022-11-18 20:04:06,855 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:04:06" (1/1) ... [2022-11-18 20:04:06,866 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:04:06,886 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:04:07,165 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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/sv-benchmarks/c/floats-cdfpl/square_1.i[1626,1639] [2022-11-18 20:04:07,169 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:04:07,178 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:04:07,191 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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/sv-benchmarks/c/floats-cdfpl/square_1.i[1626,1639] [2022-11-18 20:04:07,191 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:04:07,206 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:04:07,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07 WrapperNode [2022-11-18 20:04:07,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:04:07,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:04:07,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:04:07,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:04:07,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (1/1) ... [2022-11-18 20:04:07,227 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (1/1) ... [2022-11-18 20:04:07,248 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 21 [2022-11-18 20:04:07,248 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:04:07,250 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:04:07,250 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:04:07,250 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:04:07,259 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (1/1) ... [2022-11-18 20:04:07,260 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (1/1) ... [2022-11-18 20:04:07,262 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (1/1) ... [2022-11-18 20:04:07,262 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (1/1) ... [2022-11-18 20:04:07,275 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (1/1) ... [2022-11-18 20:04:07,278 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (1/1) ... [2022-11-18 20:04:07,280 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (1/1) ... [2022-11-18 20:04:07,281 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (1/1) ... [2022-11-18 20:04:07,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:04:07,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:04:07,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:04:07,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:04:07,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (1/1) ... [2022-11-18 20:04:07,296 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:04:07,310 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:04:07,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:04:07,327 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:04:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:04:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 20:04:07,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:04:07,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:04:07,445 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:04:07,448 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:04:07,631 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:04:07,637 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:04:07,638 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:04:07,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:07 BoogieIcfgContainer [2022-11-18 20:04:07,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:04:07,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:04:07,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:04:07,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:04:07,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:04:06" (1/3) ... [2022-11-18 20:04:07,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dff105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:04:07, skipping insertion in model container [2022-11-18 20:04:07,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:07" (2/3) ... [2022-11-18 20:04:07,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dff105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:04:07, skipping insertion in model container [2022-11-18 20:04:07,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:07" (3/3) ... [2022-11-18 20:04:07,662 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1.i [2022-11-18 20:04:07,705 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:04:07,705 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:04:07,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:04:07,837 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;@4f38fb1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:04:07,838 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:04:07,842 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 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 20:04:07,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:04:07,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:04:07,849 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:04:07,850 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:04:07,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:07,856 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-11-18 20:04:07,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:07,867 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042304217] [2022-11-18 20:04:07,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:07,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:07,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:08,044 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 20:04:08,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 20:04:08,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042304217] [2022-11-18 20:04:08,046 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042304217] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:08,047 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:08,047 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:04:08,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932306995] [2022-11-18 20:04:08,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:08,055 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:04:08,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 20:04:08,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:04:08,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:04:08,102 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 20:04:08,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:04:08,120 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-18 20:04:08,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:04:08,126 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-18 20:04:08,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:04:08,136 INFO L225 Difference]: With dead ends: 19 [2022-11-18 20:04:08,137 INFO L226 Difference]: Without dead ends: 7 [2022-11-18 20:04:08,141 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:04:08,146 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:04:08,148 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:04:08,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-11-18 20:04:08,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-18 20:04:08,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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 20:04:08,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2022-11-18 20:04:08,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2022-11-18 20:04:08,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:04:08,183 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2022-11-18 20:04:08,184 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 20:04:08,184 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2022-11-18 20:04:08,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:04:08,185 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:04:08,185 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:04:08,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 20:04:08,186 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:04:08,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:08,187 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-11-18 20:04:08,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 20:04:08,187 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059897013] [2022-11-18 20:04:08,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:08,188 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 20:04:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:04:08,207 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:04:08,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:04:08,238 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 20:04:08,238 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:04:08,240 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:04:08,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 20:04:08,247 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 20:04:08,252 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:04:08,274 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:04:08 BoogieIcfgContainer [2022-11-18 20:04:08,274 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:04:08,275 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:04:08,275 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:04:08,275 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:04:08,276 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:07" (3/4) ... [2022-11-18 20:04:08,279 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 20:04:08,280 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:04:08,281 INFO L158 Benchmark]: Toolchain (without parser) took 1437.28ms. Allocated memory is still 127.9MB. Free memory was 96.1MB in the beginning and 69.5MB in the end (delta: 26.6MB). Peak memory consumption was 24.5MB. Max. memory is 16.1GB. [2022-11-18 20:04:08,282 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory was 45.6MB in the beginning and 45.6MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:04:08,283 INFO L158 Benchmark]: CACSL2BoogieTranslator took 359.14ms. Allocated memory is still 127.9MB. Free memory was 96.1MB in the beginning and 104.3MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:04:08,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.02ms. Allocated memory is still 127.9MB. Free memory was 104.3MB in the beginning and 103.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:08,295 INFO L158 Benchmark]: Boogie Preprocessor took 35.52ms. Allocated memory is still 127.9MB. Free memory was 103.0MB in the beginning and 101.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:08,295 INFO L158 Benchmark]: RCFGBuilder took 354.35ms. Allocated memory is still 127.9MB. Free memory was 101.8MB in the beginning and 93.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:04:08,296 INFO L158 Benchmark]: TraceAbstraction took 631.10ms. Allocated memory is still 127.9MB. Free memory was 92.1MB in the beginning and 69.9MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-18 20:04:08,296 INFO L158 Benchmark]: Witness Printer took 5.10ms. Allocated memory is still 127.9MB. Free memory was 69.9MB in the beginning and 69.5MB in the end (delta: 411.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:04:08,303 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 92.3MB. Free memory was 45.6MB in the beginning and 45.6MB in the end (delta: 76.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 359.14ms. Allocated memory is still 127.9MB. Free memory was 96.1MB in the beginning and 104.3MB in the end (delta: -8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.02ms. Allocated memory is still 127.9MB. Free memory was 104.3MB in the beginning and 103.0MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.52ms. Allocated memory is still 127.9MB. Free memory was 103.0MB in the beginning and 101.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 354.35ms. Allocated memory is still 127.9MB. Free memory was 101.8MB in the beginning and 93.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 631.10ms. Allocated memory is still 127.9MB. Free memory was 92.1MB in the beginning and 69.9MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 5.10ms. Allocated memory is still 127.9MB. Free memory was 69.9MB in the beginning and 69.5MB in the end (delta: 411.6kB). 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: 38]: 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 37, overapproximation of someBinaryArithmeticFLOAToperation at line 35. Possible FailurePath: [L29] float IN = __VERIFIER_nondet_float(); [L30] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L30] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L32] float x = IN; [L34-L35] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=53, x=53] [L37] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=53, x=53] [L38] reach_error() VAL [IN=53, x=53] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 20:04:08,333 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cdfpl/square_1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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 14ef7b4695081d3e006bc43e895bc31c74bdc7ec3cae3cedfb7a87dd07fa43f0 --- 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 20:04:10,868 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 20:04:10,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 20:04:10,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 20:04:10,921 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 20:04:10,926 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 20:04:10,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 20:04:10,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 20:04:10,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 20:04:10,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 20:04:10,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 20:04:10,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 20:04:10,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 20:04:10,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 20:04:10,948 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 20:04:10,951 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 20:04:10,954 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 20:04:10,961 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 20:04:10,968 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 20:04:10,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 20:04:10,980 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 20:04:10,983 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 20:04:10,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 20:04:10,987 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 20:04:10,996 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 20:04:10,999 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 20:04:10,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 20:04:11,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 20:04:11,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 20:04:11,004 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 20:04:11,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 20:04:11,005 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 20:04:11,007 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 20:04:11,009 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 20:04:11,010 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 20:04:11,010 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 20:04:11,011 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 20:04:11,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 20:04:11,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 20:04:11,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 20:04:11,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 20:04:11,022 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-18 20:04:11,082 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 20:04:11,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 20:04:11,084 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 20:04:11,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 20:04:11,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 20:04:11,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 20:04:11,088 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 20:04:11,088 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 20:04:11,089 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 20:04:11,089 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 20:04:11,090 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 20:04:11,091 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 20:04:11,091 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 20:04:11,091 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 20:04:11,092 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 20:04:11,092 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 20:04:11,093 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 20:04:11,093 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 20:04:11,093 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 20:04:11,094 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 20:04:11,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 20:04:11,094 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 20:04:11,094 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 20:04:11,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 20:04:11,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 20:04:11,095 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 20:04:11,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:04:11,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 20:04:11,097 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 20:04:11,097 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 20:04:11,097 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 20:04:11,098 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 20:04:11,098 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 20:04:11,098 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 20:04:11,099 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 20:04:11,099 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 20:04:11,099 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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 14ef7b4695081d3e006bc43e895bc31c74bdc7ec3cae3cedfb7a87dd07fa43f0 [2022-11-18 20:04:11,534 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 20:04:11,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 20:04:11,571 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 20:04:11,573 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 20:04:11,574 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 20:04:11,576 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/floats-cdfpl/square_1.i [2022-11-18 20:04:11,660 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/data/5ba64a848/a6da5ea0232f43f880866665fbb70a8b/FLAGb80df19c4 [2022-11-18 20:04:12,358 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 20:04:12,359 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/sv-benchmarks/c/floats-cdfpl/square_1.i [2022-11-18 20:04:12,366 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/data/5ba64a848/a6da5ea0232f43f880866665fbb70a8b/FLAGb80df19c4 [2022-11-18 20:04:12,703 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/data/5ba64a848/a6da5ea0232f43f880866665fbb70a8b [2022-11-18 20:04:12,713 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 20:04:12,721 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 20:04:12,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 20:04:12,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 20:04:12,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 20:04:12,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:04:12" (1/1) ... [2022-11-18 20:04:12,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76c785d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:12, skipping insertion in model container [2022-11-18 20:04:12,737 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 08:04:12" (1/1) ... [2022-11-18 20:04:12,760 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 20:04:12,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 20:04:13,022 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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/sv-benchmarks/c/floats-cdfpl/square_1.i[1626,1639] [2022-11-18 20:04:13,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:04:13,050 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 20:04:13,114 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_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/sv-benchmarks/c/floats-cdfpl/square_1.i[1626,1639] [2022-11-18 20:04:13,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 20:04:13,133 INFO L208 MainTranslator]: Completed translation [2022-11-18 20:04:13,134 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13 WrapperNode [2022-11-18 20:04:13,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 20:04:13,136 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 20:04:13,136 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 20:04:13,136 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 20:04:13,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (1/1) ... [2022-11-18 20:04:13,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (1/1) ... [2022-11-18 20:04:13,182 INFO L138 Inliner]: procedures = 16, calls = 7, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 22 [2022-11-18 20:04:13,183 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 20:04:13,184 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 20:04:13,184 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 20:04:13,184 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 20:04:13,196 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (1/1) ... [2022-11-18 20:04:13,196 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (1/1) ... [2022-11-18 20:04:13,218 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (1/1) ... [2022-11-18 20:04:13,219 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (1/1) ... [2022-11-18 20:04:13,225 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (1/1) ... [2022-11-18 20:04:13,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (1/1) ... [2022-11-18 20:04:13,230 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (1/1) ... [2022-11-18 20:04:13,238 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (1/1) ... [2022-11-18 20:04:13,240 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 20:04:13,248 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 20:04:13,248 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 20:04:13,248 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 20:04:13,249 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (1/1) ... [2022-11-18 20:04:13,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 20:04:13,272 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 20:04:13,293 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 20:04:13,324 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 20:04:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 20:04:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 20:04:13,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 20:04:13,357 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 20:04:13,471 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 20:04:13,474 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 20:04:15,744 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 20:04:15,759 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 20:04:15,759 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-18 20:04:15,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:15 BoogieIcfgContainer [2022-11-18 20:04:15,762 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 20:04:15,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 20:04:15,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 20:04:15,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 20:04:15,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 08:04:12" (1/3) ... [2022-11-18 20:04:15,783 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9b100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:04:15, skipping insertion in model container [2022-11-18 20:04:15,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 08:04:13" (2/3) ... [2022-11-18 20:04:15,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a9b100 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 08:04:15, skipping insertion in model container [2022-11-18 20:04:15,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:15" (3/3) ... [2022-11-18 20:04:15,786 INFO L112 eAbstractionObserver]: Analyzing ICFG square_1.i [2022-11-18 20:04:15,810 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 20:04:15,810 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 20:04:15,892 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 20:04:15,901 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;@68e9727e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 20:04:15,902 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 20:04:15,907 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 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 20:04:15,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:04:15,917 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:04:15,918 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:04:15,920 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:04:15,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:15,929 INFO L85 PathProgramCache]: Analyzing trace with hash 889508712, now seen corresponding path program 1 times [2022-11-18 20:04:15,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:04:15,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1162993074] [2022-11-18 20:04:15,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:15,951 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 20:04:15,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:04:15,960 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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 20:04:16,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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 20:04:16,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 20:04:16,855 INFO L263 TraceCheckSpWp]: Trace formula consists of 20 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 20:04:16,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 20:04:16,884 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 20:04:16,884 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 20:04:16,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 20:04:16,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1162993074] [2022-11-18 20:04:16,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1162993074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 20:04:16,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 20:04:16,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 20:04:16,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932602879] [2022-11-18 20:04:16,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 20:04:16,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 20:04:16,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 20:04:16,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 20:04:16,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:04:16,956 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.3333333333333333) internal successors, (12), 10 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) Second operand has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 20:04:16,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 20:04:16,969 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-18 20:04:16,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 20:04:16,971 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-11-18 20:04:16,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 20:04:16,979 INFO L225 Difference]: With dead ends: 19 [2022-11-18 20:04:16,979 INFO L226 Difference]: Without dead ends: 7 [2022-11-18 20:04:16,982 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 20:04:16,989 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 20:04:16,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 20:04:17,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2022-11-18 20:04:17,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2022-11-18 20:04:17,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7 states, 6 states have (on average 1.0) internal successors, (6), 6 states have internal predecessors, (6), 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 20:04:17,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2022-11-18 20:04:17,021 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 6 [2022-11-18 20:04:17,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 20:04:17,022 INFO L495 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2022-11-18 20:04:17,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 20:04:17,022 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2022-11-18 20:04:17,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-18 20:04:17,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 20:04:17,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-18 20:04:17,051 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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 0 [2022-11-18 20:04:17,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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 20:04:17,236 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 20:04:17,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 20:04:17,237 INFO L85 PathProgramCache]: Analyzing trace with hash 889568294, now seen corresponding path program 1 times [2022-11-18 20:04:17,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 20:04:17,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1763501448] [2022-11-18 20:04:17,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 20:04:17,238 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 20:04:17,238 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 20:04:17,239 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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 20:04:17,241 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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 (3)] Waiting until timeout for monitored process [2022-11-18 20:04:58,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:04:58,739 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 20:05:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 20:05:25,541 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-18 20:05:25,541 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 20:05:25,544 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 20:05:25,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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 (3)] Forceful destruction successful, exit code 0 [2022-11-18 20:05:25,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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 20:05:25,750 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 20:05:25,755 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 20:05:25,777 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 08:05:25 BoogieIcfgContainer [2022-11-18 20:05:25,777 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 20:05:25,778 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 20:05:25,779 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 20:05:25,779 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 20:05:25,780 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 08:04:15" (3/4) ... [2022-11-18 20:05:25,782 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 20:05:25,828 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 20:05:25,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 20:05:25,833 INFO L158 Benchmark]: Toolchain (without parser) took 73108.75ms. Allocated memory is still 77.6MB. Free memory was 61.7MB in the beginning and 49.4MB in the end (delta: 12.3MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2022-11-18 20:05:25,834 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 77.6MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:05:25,842 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.99ms. Allocated memory is still 77.6MB. Free memory was 61.6MB in the beginning and 61.3MB in the end (delta: 232.7kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 20:05:25,843 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.24ms. Allocated memory is still 77.6MB. Free memory was 61.3MB in the beginning and 59.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:05:25,843 INFO L158 Benchmark]: Boogie Preprocessor took 62.83ms. Allocated memory is still 77.6MB. Free memory was 59.9MB in the beginning and 58.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:05:25,844 INFO L158 Benchmark]: RCFGBuilder took 2514.65ms. Allocated memory is still 77.6MB. Free memory was 58.6MB in the beginning and 49.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 20:05:25,844 INFO L158 Benchmark]: TraceAbstraction took 70008.82ms. Allocated memory is still 77.6MB. Free memory was 48.7MB in the beginning and 51.0MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 20:05:25,845 INFO L158 Benchmark]: Witness Printer took 50.62ms. Allocated memory is still 77.6MB. Free memory was 51.0MB in the beginning and 49.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 20:05:25,847 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 77.6MB. Free memory is still 58.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.99ms. Allocated memory is still 77.6MB. Free memory was 61.6MB in the beginning and 61.3MB in the end (delta: 232.7kB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.24ms. Allocated memory is still 77.6MB. Free memory was 61.3MB in the beginning and 59.9MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 62.83ms. Allocated memory is still 77.6MB. Free memory was 59.9MB in the beginning and 58.6MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2514.65ms. Allocated memory is still 77.6MB. Free memory was 58.6MB in the beginning and 49.2MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 70008.82ms. Allocated memory is still 77.6MB. Free memory was 48.7MB in the beginning and 51.0MB in the end (delta: -2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 50.62ms. Allocated memory is still 77.6MB. Free memory was 51.0MB in the beginning and 49.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. 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 - CounterExampleResult [Line: 38]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L29] float IN = __VERIFIER_nondet_float(); [L30] CALL assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L24] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L30] RET assume_abort_if_not(IN >= 0.0f && IN < 1.0f) [L32] float x = IN; [L34-L35] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; VAL [IN=0.9842520356178284, result=1.3939661979675293, x=0.9842520356178284] [L37] COND TRUE !(result >= 0.0f && result < 1.39f) VAL [IN=0.9842520356178284, result=1.3939661979675293, x=0.9842520356178284] [L38] reach_error() VAL [IN=0.9842520356178284, result=1.3939661979675293, x=0.9842520356178284] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 69.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 10 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 42.3s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 5 SizeOfPredicates, 0 NumberOfNonLiveVariables, 20 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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 proved your program to be incorrect! [2022-11-18 20:05:25,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5d4e918-cc1a-4f23-9087-0988aa50fb1a/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE