./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/interpolation.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd --- 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-b5237d8 [2022-11-22 00:28:36,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:28:36,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:28:36,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:28:36,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:28:36,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:28:36,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:28:36,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:28:36,195 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:28:36,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:28:36,197 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:28:36,198 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:28:36,198 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:28:36,199 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:28:36,200 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:28:36,202 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:28:36,202 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:28:36,203 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:28:36,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:28:36,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:28:36,208 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:28:36,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:28:36,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:28:36,212 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:28:36,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:28:36,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:28:36,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:28:36,217 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:28:36,218 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:28:36,219 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:28:36,219 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:28:36,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:28:36,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:28:36,222 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:28:36,223 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:28:36,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:28:36,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:28:36,225 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:28:36,225 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:28:36,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:28:36,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:28:36,232 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 00:28:36,270 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:28:36,270 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:28:36,271 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:28:36,271 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:28:36,272 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:28:36,272 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:28:36,272 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:28:36,272 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:28:36,273 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:28:36,273 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 00:28:36,274 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:28:36,274 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:28:36,274 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 00:28:36,275 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 00:28:36,275 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:28:36,275 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 00:28:36,275 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 00:28:36,275 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 00:28:36,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:28:36,276 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:28:36,277 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 00:28:36,277 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:28:36,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:28:36,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:28:36,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:28:36,278 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:28:36,278 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:28:36,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:28:36,278 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:28:36,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:28:36,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:28:36,279 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:28:36,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:28:36,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:28:36,281 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 00:28:36,281 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:28:36,281 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:28:36,281 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 00:28:36,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 00:28:36,282 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:28:36,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:28:36,282 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_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd [2022-11-22 00:28:36,546 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:28:36,572 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:28:36,574 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:28:36,576 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:28:36,576 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:28:36,577 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-benchs/interpolation.c [2022-11-22 00:28:39,679 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:28:39,909 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:28:39,910 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/sv-benchmarks/c/float-benchs/interpolation.c [2022-11-22 00:28:39,916 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/data/e248beb6b/90bf0b454d064ec2b06f68d56bd94c74/FLAG07b2a8a96 [2022-11-22 00:28:39,935 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/data/e248beb6b/90bf0b454d064ec2b06f68d56bd94c74 [2022-11-22 00:28:39,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:28:39,945 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:28:39,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:28:39,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:28:39,956 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:28:39,957 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:28:39" (1/1) ... [2022-11-22 00:28:39,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65583304 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:39, skipping insertion in model container [2022-11-22 00:28:39,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:28:39" (1/1) ... [2022-11-22 00:28:39,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:28:39,980 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:28:40,133 WARN L237 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_06ac3fe2-4401-44c2-9989-55db7ce4a33c/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2022-11-22 00:28:40,164 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:28:40,172 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:28:40,189 WARN L237 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_06ac3fe2-4401-44c2-9989-55db7ce4a33c/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2022-11-22 00:28:40,214 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:28:40,228 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:28:40,228 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40 WrapperNode [2022-11-22 00:28:40,228 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:28:40,229 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:28:40,229 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:28:40,230 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:28:40,237 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (1/1) ... [2022-11-22 00:28:40,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (1/1) ... [2022-11-22 00:28:40,267 INFO L138 Inliner]: procedures = 18, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 76 [2022-11-22 00:28:40,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:28:40,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:28:40,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:28:40,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:28:40,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (1/1) ... [2022-11-22 00:28:40,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (1/1) ... [2022-11-22 00:28:40,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (1/1) ... [2022-11-22 00:28:40,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (1/1) ... [2022-11-22 00:28:40,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (1/1) ... [2022-11-22 00:28:40,293 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (1/1) ... [2022-11-22 00:28:40,295 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (1/1) ... [2022-11-22 00:28:40,301 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (1/1) ... [2022-11-22 00:28:40,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:28:40,303 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:28:40,303 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:28:40,304 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:28:40,304 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (1/1) ... [2022-11-22 00:28:40,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:28:40,323 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:28:40,336 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:28:40,370 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:28:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:28:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 00:28:40,389 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:28:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-22 00:28:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:28:40,390 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:28:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-22 00:28:40,390 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:28:40,465 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:28:40,472 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:28:40,588 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:28:40,676 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:28:40,677 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:28:40,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:28:40 BoogieIcfgContainer [2022-11-22 00:28:40,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:28:40,685 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:28:40,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:28:40,690 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:28:40,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:28:39" (1/3) ... [2022-11-22 00:28:40,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208a2a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:28:40, skipping insertion in model container [2022-11-22 00:28:40,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:40" (2/3) ... [2022-11-22 00:28:40,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@208a2a2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:28:40, skipping insertion in model container [2022-11-22 00:28:40,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:28:40" (3/3) ... [2022-11-22 00:28:40,696 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation.c [2022-11-22 00:28:40,717 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:28:40,717 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:28:40,788 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:28:40,796 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=FINITE_AUTOMATA, 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;@23a60d60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:28:40,797 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:28:40,801 INFO L276 IsEmpty]: Start isEmpty. Operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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) [2022-11-22 00:28:40,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-22 00:28:40,808 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:28:40,809 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-22 00:28:40,812 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:28:40,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:28:40,822 INFO L85 PathProgramCache]: Analyzing trace with hash 85683978, now seen corresponding path program 1 times [2022-11-22 00:28:40,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:28:40,834 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240469478] [2022-11-22 00:28:40,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:28:40,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:28:41,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 00:28:41,174 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-22 00:28:41,174 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-22 00:28:41,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240469478] [2022-11-22 00:28:41,175 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240469478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 00:28:41,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 00:28:41,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 00:28:41,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272254933] [2022-11-22 00:28:41,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 00:28:41,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-22 00:28:41,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-22 00:28:41,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-22 00:28:41,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:28:41,212 INFO L87 Difference]: Start difference. First operand has 9 states, 7 states have (on average 1.5714285714285714) internal successors, (11), 8 states have internal predecessors, (11), 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 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-22 00:28:41,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 00:28:41,246 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2022-11-22 00:28:41,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-22 00:28:41,249 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-22 00:28:41,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 00:28:41,256 INFO L225 Difference]: With dead ends: 23 [2022-11-22 00:28:41,257 INFO L226 Difference]: Without dead ends: 13 [2022-11-22 00:28:41,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-22 00:28:41,263 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 7 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-22 00:28:41,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 10 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 00:28:41,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-11-22 00:28:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 8. [2022-11-22 00:28:41,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2022-11-22 00:28:41,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2022-11-22 00:28:41,294 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2022-11-22 00:28:41,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 00:28:41,294 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-11-22 00:28:41,295 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-22 00:28:41,295 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-11-22 00:28:41,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-22 00:28:41,296 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:28:41,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-22 00:28:41,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 00:28:41,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:28:41,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:28:41,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1666710841, now seen corresponding path program 1 times [2022-11-22 00:28:41,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 00:28:41,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234772608] [2022-11-22 00:28:41,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:28:41,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 00:28:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:28:41,319 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 00:28:41,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 00:28:41,377 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 00:28:41,377 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 00:28:41,379 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 00:28:41,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-22 00:28:41,386 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-22 00:28:41,388 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 00:28:41,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 12:28:41 BoogieIcfgContainer [2022-11-22 00:28:41,409 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 00:28:41,410 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 00:28:41,410 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 00:28:41,410 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 00:28:41,411 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:28:40" (3/4) ... [2022-11-22 00:28:41,414 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 00:28:41,414 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 00:28:41,415 INFO L158 Benchmark]: Toolchain (without parser) took 1469.94ms. Allocated memory is still 140.5MB. Free memory was 110.1MB in the beginning and 50.9MB in the end (delta: 59.2MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2022-11-22 00:28:41,415 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:28:41,416 INFO L158 Benchmark]: CACSL2BoogieTranslator took 276.44ms. Allocated memory is still 140.5MB. Free memory was 109.5MB in the beginning and 99.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 00:28:41,417 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.75ms. Allocated memory is still 140.5MB. Free memory was 99.0MB in the beginning and 97.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:28:41,417 INFO L158 Benchmark]: Boogie Preprocessor took 34.12ms. Allocated memory is still 140.5MB. Free memory was 97.7MB in the beginning and 96.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:28:41,418 INFO L158 Benchmark]: RCFGBuilder took 377.30ms. Allocated memory is still 140.5MB. Free memory was 96.2MB in the beginning and 81.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-22 00:28:41,418 INFO L158 Benchmark]: TraceAbstraction took 724.45ms. Allocated memory is still 140.5MB. Free memory was 80.9MB in the beginning and 50.9MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-22 00:28:41,425 INFO L158 Benchmark]: Witness Printer took 4.59ms. Allocated memory is still 140.5MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:28:41,428 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 107.0MB. Free memory is still 60.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 276.44ms. Allocated memory is still 140.5MB. Free memory was 109.5MB in the beginning and 99.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.75ms. Allocated memory is still 140.5MB. Free memory was 99.0MB in the beginning and 97.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.12ms. Allocated memory is still 140.5MB. Free memory was 97.7MB in the beginning and 96.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 377.30ms. Allocated memory is still 140.5MB. Free memory was 96.2MB in the beginning and 81.5MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 724.45ms. Allocated memory is still 140.5MB. Free memory was 80.9MB in the beginning and 50.9MB in the end (delta: 30.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Witness Printer took 4.59ms. Allocated memory is still 140.5MB. Free memory is still 50.9MB. 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: 9]: 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 26, overapproximation of to_real at line 15, overapproximation of someBinaryArithmeticFLOAToperation at line 24. Possible FailurePath: [L13] int i; [L14] float z, t; [L15] float min[] = { 5, 10, 12, 30, 150 }; [L16] float max[] = { 10, 12, 30, 150, 300 }; [L18] t = __VERIFIER_nondet_float() [L19] EXPR min[0] [L19] EXPR t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1] [L19] EXPR max[sizeof(max) / sizeof(max[0]) - 1] [L19] EXPR t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1] [L19] CALL assume_abort_if_not(t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1]) [L7] COND FALSE !(!cond) [L19] RET assume_abort_if_not(t >= min[0] && t <= max[sizeof(max) / sizeof(max[0]) - 1]) [L21] i = 0 VAL [i=0, max={5:0}, min={4:0}] [L21] COND TRUE i < sizeof(min) / sizeof(min[0]) [L22] EXPR max[i] VAL [i=0, max={5:0}, max[i]=54, min={4:0}] [L22] COND TRUE t <= max[i] [L24] EXPR min[i] [L24] EXPR max[i] [L24] EXPR min[i] [L24] z = (t - min[i]) / (max[i] - min[i]) [L26] CALL __VERIFIER_assert(z >= 0.f && z <= 1.f) [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 7 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 7 mSDsluCounter, 10 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 9 IncrementalHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 5 mSDtfsCounter, 9 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=9occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 4 ConstructedInterpolants, 0 QuantifiedInterpolants, 6 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 [2022-11-22 00:28:41,510 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with 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_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/interpolation.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd --- 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-b5237d8 [2022-11-22 00:28:43,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 00:28:43,951 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 00:28:43,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 00:28:43,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 00:28:44,000 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 00:28:44,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 00:28:44,006 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 00:28:44,008 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 00:28:44,014 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 00:28:44,015 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 00:28:44,018 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 00:28:44,018 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 00:28:44,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 00:28:44,022 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 00:28:44,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 00:28:44,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 00:28:44,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 00:28:44,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 00:28:44,036 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 00:28:44,039 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 00:28:44,041 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 00:28:44,043 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 00:28:44,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 00:28:44,050 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 00:28:44,053 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 00:28:44,054 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 00:28:44,055 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 00:28:44,056 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 00:28:44,057 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 00:28:44,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 00:28:44,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 00:28:44,061 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 00:28:44,062 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 00:28:44,063 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 00:28:44,064 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 00:28:44,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 00:28:44,065 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 00:28:44,065 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 00:28:44,066 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 00:28:44,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 00:28:44,067 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-22 00:28:44,106 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 00:28:44,107 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 00:28:44,108 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 00:28:44,108 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 00:28:44,109 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 00:28:44,109 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 00:28:44,110 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 00:28:44,110 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 00:28:44,110 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 00:28:44,110 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 00:28:44,111 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 00:28:44,112 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 00:28:44,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 00:28:44,113 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 00:28:44,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 00:28:44,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 00:28:44,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 00:28:44,114 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 00:28:44,114 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 00:28:44,114 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 00:28:44,114 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 00:28:44,114 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 00:28:44,115 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 00:28:44,115 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 00:28:44,115 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 00:28:44,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 00:28:44,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 00:28:44,116 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 00:28:44,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 00:28:44,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:28:44,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 00:28:44,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 00:28:44,117 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 00:28:44,117 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 00:28:44,118 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 00:28:44,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 00:28:44,118 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 00:28:44,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 00:28:44,118 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_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 30f6a485d859f7eee00a1696279d966456b3a38851c6233a0367f621da73d6bd [2022-11-22 00:28:44,494 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 00:28:44,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 00:28:44,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 00:28:44,519 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 00:28:44,520 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 00:28:44,521 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-benchs/interpolation.c [2022-11-22 00:28:47,640 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 00:28:47,850 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 00:28:47,851 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/sv-benchmarks/c/float-benchs/interpolation.c [2022-11-22 00:28:47,858 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/data/56812d34c/ddbcc02a24104b56a3e125b9c453c375/FLAG85dd22ddf [2022-11-22 00:28:47,876 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/data/56812d34c/ddbcc02a24104b56a3e125b9c453c375 [2022-11-22 00:28:47,879 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 00:28:47,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 00:28:47,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 00:28:47,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 00:28:47,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 00:28:47,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:28:47" (1/1) ... [2022-11-22 00:28:47,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@111db66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:47, skipping insertion in model container [2022-11-22 00:28:47,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 12:28:47" (1/1) ... [2022-11-22 00:28:47,914 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 00:28:47,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 00:28:48,062 WARN L237 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_06ac3fe2-4401-44c2-9989-55db7ce4a33c/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2022-11-22 00:28:48,084 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:28:48,097 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 00:28:48,110 WARN L237 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_06ac3fe2-4401-44c2-9989-55db7ce4a33c/sv-benchmarks/c/float-benchs/interpolation.c[449,462] [2022-11-22 00:28:48,122 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 00:28:48,138 INFO L208 MainTranslator]: Completed translation [2022-11-22 00:28:48,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48 WrapperNode [2022-11-22 00:28:48,139 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 00:28:48,140 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 00:28:48,141 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 00:28:48,141 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 00:28:48,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,179 INFO L138 Inliner]: procedures = 19, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2022-11-22 00:28:48,179 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 00:28:48,180 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 00:28:48,180 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 00:28:48,180 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 00:28:48,189 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,189 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,193 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,213 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,216 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 00:28:48,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 00:28:48,217 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 00:28:48,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 00:28:48,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (1/1) ... [2022-11-22 00:28:48,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 00:28:48,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 00:28:48,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 00:28:48,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 00:28:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 00:28:48,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2022-11-22 00:28:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 00:28:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-22 00:28:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-22 00:28:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 00:28:48,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 00:28:48,295 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-22 00:28:48,376 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 00:28:48,377 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 00:28:48,994 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 00:28:48,999 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 00:28:48,999 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 00:28:49,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:28:49 BoogieIcfgContainer [2022-11-22 00:28:49,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 00:28:49,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 00:28:49,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 00:28:49,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 00:28:49,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 12:28:47" (1/3) ... [2022-11-22 00:28:49,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc97b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:28:49, skipping insertion in model container [2022-11-22 00:28:49,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 12:28:48" (2/3) ... [2022-11-22 00:28:49,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fc97b16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 12:28:49, skipping insertion in model container [2022-11-22 00:28:49,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 12:28:49" (3/3) ... [2022-11-22 00:28:49,011 INFO L112 eAbstractionObserver]: Analyzing ICFG interpolation.c [2022-11-22 00:28:49,029 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 00:28:49,029 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 00:28:49,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 00:28:49,085 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=FINITE_AUTOMATA, 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;@52338ec0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 00:28:49,085 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 00:28:49,090 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 15 states have (on average 1.4666666666666666) internal successors, (22), 16 states have internal predecessors, (22), 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) [2022-11-22 00:28:49,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-22 00:28:49,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 00:28:49,100 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 00:28:49,100 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 00:28:49,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 00:28:49,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1235833265, now seen corresponding path program 1 times [2022-11-22 00:28:49,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 00:28:49,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1488281116] [2022-11-22 00:28:49,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 00:28:49,127 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 [2022-11-22 00:28:49,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 00:28:49,139 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/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) [2022-11-22 00:28:49,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/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 [2022-11-22 00:28:49,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/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 [2022-11-22 00:28:49,310 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheck.(InterpolatingTraceCheck.java:91) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:132) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.AnnotateAndAsserter.buildAnnotatedSsaAndAssertTerms(AnnotateAndAsserter.java:130) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.checkTrace(TraceCheck.java:317) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:215) ... 30 more Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 37 more [2022-11-22 00:28:49,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 139 [2022-11-22 00:28:49,333 INFO L158 Benchmark]: Toolchain (without parser) took 1452.51ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 26.8MB in the beginning and 33.9MB in the end (delta: -7.1MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-11-22 00:28:49,334 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:28:49,335 INFO L158 Benchmark]: CACSL2BoogieTranslator took 257.75ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 26.5MB in the beginning and 43.6MB in the end (delta: -17.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2022-11-22 00:28:49,335 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.89ms. Allocated memory is still 73.4MB. Free memory was 43.6MB in the beginning and 41.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 00:28:49,336 INFO L158 Benchmark]: Boogie Preprocessor took 36.80ms. Allocated memory is still 73.4MB. Free memory was 41.9MB in the beginning and 40.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 00:28:49,336 INFO L158 Benchmark]: RCFGBuilder took 784.28ms. Allocated memory is still 73.4MB. Free memory was 40.3MB in the beginning and 46.2MB in the end (delta: -5.9MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. [2022-11-22 00:28:49,337 INFO L158 Benchmark]: TraceAbstraction took 327.68ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 33.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 00:28:49,340 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 60.8MB. Free memory was 39.1MB in the beginning and 39.0MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 257.75ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 26.5MB in the beginning and 43.6MB in the end (delta: -17.1MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.89ms. Allocated memory is still 73.4MB. Free memory was 43.6MB in the beginning and 41.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.80ms. Allocated memory is still 73.4MB. Free memory was 41.9MB in the beginning and 40.3MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 784.28ms. Allocated memory is still 73.4MB. Free memory was 40.3MB in the beginning and 46.2MB in the end (delta: -5.9MB). Peak memory consumption was 10.3MB. Max. memory is 16.1GB. * TraceAbstraction took 327.68ms. Allocated memory is still 73.4MB. Free memory was 45.4MB in the beginning and 33.9MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output. de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.: de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheck.(TraceCheck.java:236) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-22 00:28:49,396 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_06ac3fe2-4401-44c2-9989-55db7ce4a33c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2) with exit command (exit)) Received EOF on stdin. No stderr output.