./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur --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 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 --- 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-38b53e6 [2022-11-26 00:42:28,114 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:42:28,116 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:42:28,144 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:42:28,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:42:28,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:42:28,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:42:28,148 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:42:28,150 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:42:28,151 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:42:28,152 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:42:28,153 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:42:28,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:42:28,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:42:28,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:42:28,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:42:28,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:42:28,160 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:42:28,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:42:28,164 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:42:28,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:42:28,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:42:28,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:42:28,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:42:28,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:42:28,188 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:42:28,189 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:42:28,190 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:42:28,190 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:42:28,191 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:42:28,191 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:42:28,192 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:42:28,193 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:42:28,194 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:42:28,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:42:28,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:42:28,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:42:28,198 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:42:28,199 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:42:28,200 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:42:28,200 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:42:28,203 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-26 00:42:28,236 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:42:28,237 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:42:28,237 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:42:28,238 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:42:28,239 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:42:28,239 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:42:28,239 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:42:28,239 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:42:28,240 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:42:28,240 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:42:28,241 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:42:28,241 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:42:28,241 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:42:28,242 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:42:28,242 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:42:28,242 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:42:28,242 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:42:28,243 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:42:28,243 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:42:28,244 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:42:28,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:42:28,244 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:42:28,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:42:28,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:42:28,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:42:28,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:42:28,245 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:42:28,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:42:28,246 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:42:28,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:42:28,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:42:28,247 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:42:28,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:42:28,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:42:28,247 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:42:28,248 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:42:28,248 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:42:28,249 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:42:28,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:42:28,249 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:42:28,249 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:42:28,250 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_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 [2022-11-26 00:42:28,521 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:42:28,561 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:42:28,564 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:42:28,566 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:42:28,566 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:42:28,568 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2022-11-26 00:42:31,558 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:42:31,845 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:42:31,846 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2022-11-26 00:42:31,853 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/data/ccbccbb51/5b53f816ca9443d897597e57e71c2f50/FLAG255b574f7 [2022-11-26 00:42:31,867 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/data/ccbccbb51/5b53f816ca9443d897597e57e71c2f50 [2022-11-26 00:42:31,870 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:42:31,872 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:42:31,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:42:31,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:42:31,877 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:42:31,878 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:42:31" (1/1) ... [2022-11-26 00:42:31,879 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@605ba9b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:31, skipping insertion in model container [2022-11-26 00:42:31,879 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:42:31" (1/1) ... [2022-11-26 00:42:31,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:42:31,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:42:32,134 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_8f27c08c-23e0-4fcb-8e14-b7180d81da34/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2022-11-26 00:42:32,142 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:42:32,151 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:42:32,217 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_8f27c08c-23e0-4fcb-8e14-b7180d81da34/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2022-11-26 00:42:32,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:42:32,231 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:42:32,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32 WrapperNode [2022-11-26 00:42:32,232 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:42:32,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:42:32,233 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:42:32,233 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:42:32,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (1/1) ... [2022-11-26 00:42:32,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (1/1) ... [2022-11-26 00:42:32,291 INFO L138 Inliner]: procedures = 19, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 242 [2022-11-26 00:42:32,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:42:32,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:42:32,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:42:32,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:42:32,311 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (1/1) ... [2022-11-26 00:42:32,311 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (1/1) ... [2022-11-26 00:42:32,315 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (1/1) ... [2022-11-26 00:42:32,316 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (1/1) ... [2022-11-26 00:42:32,357 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (1/1) ... [2022-11-26 00:42:32,363 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (1/1) ... [2022-11-26 00:42:32,366 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (1/1) ... [2022-11-26 00:42:32,367 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (1/1) ... [2022-11-26 00:42:32,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:42:32,382 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:42:32,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:42:32,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:42:32,383 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (1/1) ... [2022-11-26 00:42:32,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:42:32,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:42:32,421 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:42:32,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:42:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:42:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:42:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:42:32,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:42:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-26 00:42:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-26 00:42:32,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:42:32,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:42:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:42:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2022-11-26 00:42:32,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:42:32,556 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:42:32,558 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:42:33,100 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:42:33,310 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:42:33,310 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-26 00:42:33,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:42:33 BoogieIcfgContainer [2022-11-26 00:42:33,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:42:33,315 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:42:33,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:42:33,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:42:33,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:42:31" (1/3) ... [2022-11-26 00:42:33,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dfd772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:42:33, skipping insertion in model container [2022-11-26 00:42:33,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:32" (2/3) ... [2022-11-26 00:42:33,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dfd772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:42:33, skipping insertion in model container [2022-11-26 00:42:33,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:42:33" (3/3) ... [2022-11-26 00:42:33,323 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2022-11-26 00:42:33,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:42:33,343 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:42:33,392 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:42:33,399 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;@35355630, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:42:33,399 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:42:33,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 45 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 44 states have internal predecessors, (76), 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) [2022-11-26 00:42:33,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-26 00:42:33,411 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:33,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:42:33,412 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:42:33,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:33,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1875325126, now seen corresponding path program 1 times [2022-11-26 00:42:33,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:33,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161095108] [2022-11-26 00:42:33,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:33,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:33,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:42:33,645 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:42:33,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161095108] [2022-11-26 00:42:33,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161095108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:33,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:33,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:42:33,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956131418] [2022-11-26 00:42:33,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:33,655 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:42:33,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:42:33,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:42:33,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:42:33,727 INFO L87 Difference]: Start difference. First operand has 45 states, 43 states have (on average 1.7674418604651163) internal successors, (76), 44 states have internal predecessors, (76), 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 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-26 00:42:33,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:33,810 INFO L93 Difference]: Finished difference Result 88 states and 149 transitions. [2022-11-26 00:42:33,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:42:33,813 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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 10 [2022-11-26 00:42:33,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:33,824 INFO L225 Difference]: With dead ends: 88 [2022-11-26 00:42:33,824 INFO L226 Difference]: Without dead ends: 42 [2022-11-26 00:42:33,827 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 [2022-11-26 00:42:33,833 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-26 00:42:33,834 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-26 00:42:33,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-11-26 00:42:33,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-11-26 00:42:33,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.4634146341463414) internal successors, (60), 41 states have internal predecessors, (60), 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) [2022-11-26 00:42:33,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 60 transitions. [2022-11-26 00:42:33,883 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 60 transitions. Word has length 10 [2022-11-26 00:42:33,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:33,884 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 60 transitions. [2022-11-26 00:42:33,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 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) [2022-11-26 00:42:33,884 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 60 transitions. [2022-11-26 00:42:33,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:42:33,887 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:33,887 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:42:33,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:42:33,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:42:33,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:33,889 INFO L85 PathProgramCache]: Analyzing trace with hash -86320413, now seen corresponding path program 1 times [2022-11-26 00:42:33,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:42:33,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593630297] [2022-11-26 00:42:33,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:33,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:42:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:42:34,134 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:42:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:42:34,247 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:42:34,247 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:42:34,249 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 00:42:34,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:42:34,255 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-26 00:42:34,258 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:42:34,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:42:34 BoogieIcfgContainer [2022-11-26 00:42:34,284 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:42:34,285 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:42:34,285 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:42:34,285 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:42:34,286 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:42:33" (3/4) ... [2022-11-26 00:42:34,289 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:42:34,289 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:42:34,290 INFO L158 Benchmark]: Toolchain (without parser) took 2417.98ms. Allocated memory is still 188.7MB. Free memory was 154.6MB in the beginning and 127.8MB in the end (delta: 26.8MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2022-11-26 00:42:34,290 INFO L158 Benchmark]: CDTParser took 0.95ms. Allocated memory is still 146.8MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:42:34,291 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.92ms. Allocated memory is still 188.7MB. Free memory was 154.6MB in the beginning and 140.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:42:34,291 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.62ms. Allocated memory is still 188.7MB. Free memory was 140.5MB in the beginning and 137.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:42:34,292 INFO L158 Benchmark]: Boogie Preprocessor took 88.52ms. Allocated memory is still 188.7MB. Free memory was 137.8MB in the beginning and 135.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:42:34,292 INFO L158 Benchmark]: RCFGBuilder took 931.34ms. Allocated memory is still 188.7MB. Free memory was 135.0MB in the beginning and 94.2MB in the end (delta: 40.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-26 00:42:34,293 INFO L158 Benchmark]: TraceAbstraction took 968.72ms. Allocated memory is still 188.7MB. Free memory was 93.8MB in the beginning and 127.8MB in the end (delta: -34.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:42:34,293 INFO L158 Benchmark]: Witness Printer took 4.34ms. Allocated memory is still 188.7MB. Free memory is still 127.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:42:34,296 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.95ms. Allocated memory is still 146.8MB. Free memory is still 87.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.92ms. Allocated memory is still 188.7MB. Free memory was 154.6MB in the beginning and 140.5MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.62ms. Allocated memory is still 188.7MB. Free memory was 140.5MB in the beginning and 137.8MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 88.52ms. Allocated memory is still 188.7MB. Free memory was 137.8MB in the beginning and 135.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 931.34ms. Allocated memory is still 188.7MB. Free memory was 135.0MB in the beginning and 94.2MB in the end (delta: 40.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 968.72ms. Allocated memory is still 188.7MB. Free memory was 93.8MB in the beginning and 127.8MB in the end (delta: -34.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.34ms. Allocated memory is still 188.7MB. Free memory is still 127.8MB. 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: 193]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseOr at line 46, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of bitwiseAnd at line 41, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47, overapproximation of someBinaryDOUBLEComparisonOperation at line 192, overapproximation of bitwiseXor at line 42. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; [L184] double x = 0.0; [L185] double y = __VERIFIER_nondet_double(); [L187] COND TRUE y < 0.0 || y > 0.0 [L189] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [\old(x)=0, \old(y)=8589934614, one_fmod=1, x=0, y=8589934614, Zero_fmod={4:0}] [L30] ieee_double_shape_type ew_u; [L31] ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] (lx) = ew_u.parts.lsw [L36] ieee_double_shape_type ew_u; [L37] ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] (ly) = ew_u.parts.lsw [L41] sx = hx & 0x80000000 [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [\old(x)=0, \old(y)=8589934614, hx=4294967295, hy=0, lx=8589934602, ly=0, one_fmod=1, sx=4294967295, x=0, y=8589934614, Zero_fmod={4:0}] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [\old(x)=0, \old(y)=8589934614, hx=4294967295, hy=0, lx=8589934602, ly=0, one_fmod=1, sx=4294967295, x=0, y=8589934614, Zero_fmod={4:0}] [L189] RET, EXPR fmod_double(x, y) [L189] double res = fmod_double(x, y); [L192] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [one_fmod=1, res=8589934613, res == 0.0 && __signbit_double(res) == 0=0, x=0, y=8589934614, Zero_fmod={4:0}] [L192] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L193] reach_error() VAL [one_fmod=1, res=8589934613, x=0, y=8589934614, Zero_fmod={4:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 45 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 16 IncrementalHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 48 mSDtfsCounter, 16 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=45occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 [2022-11-26 00:42:34,319 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur --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 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 --- 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-38b53e6 [2022-11-26 00:42:36,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:42:36,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:42:36,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:42:36,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:42:36,766 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:42:36,768 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:42:36,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:42:36,774 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:42:36,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:42:36,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:42:36,783 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:42:36,784 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:42:36,786 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:42:36,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:42:36,794 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:42:36,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:42:36,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:42:36,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:42:36,799 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:42:36,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:42:36,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:42:36,806 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:42:36,807 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:42:36,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:42:36,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:42:36,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:42:36,821 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:42:36,821 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:42:36,822 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:42:36,822 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:42:36,823 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:42:36,824 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:42:36,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:42:36,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:42:36,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:42:36,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:42:36,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:42:36,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:42:36,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:42:36,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:42:36,844 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-26 00:42:36,883 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:42:36,883 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:42:36,884 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:42:36,884 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:42:36,885 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:42:36,885 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:42:36,886 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:42:36,886 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:42:36,886 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:42:36,886 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:42:36,887 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:42:36,887 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:42:36,888 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:42:36,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-26 00:42:36,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-26 00:42:36,889 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:42:36,889 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:42:36,889 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:42:36,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:42:36,889 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:42:36,890 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:42:36,890 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:42:36,890 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-26 00:42:36,890 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:42:36,890 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:42:36,890 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:42:36,891 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:42:36,891 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:42:36,891 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:42:36,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:42:36,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:42:36,892 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:42:36,892 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:42:36,892 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:42:36,892 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:42:36,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:42:36,893 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:42:36,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:42:36,893 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_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23d3becec5645fa497625df98df84137049a5fde6a7d2da6a420cf3c624fd037 [2022-11-26 00:42:37,246 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:42:37,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:42:37,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:42:37,290 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:42:37,290 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:42:37,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2022-11-26 00:42:40,318 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:42:40,591 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:42:40,591 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c [2022-11-26 00:42:40,598 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/data/1d7616ae4/356da1376c6f4d07a8766864600c6898/FLAGefcdcb987 [2022-11-26 00:42:40,617 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/data/1d7616ae4/356da1376c6f4d07a8766864600c6898 [2022-11-26 00:42:40,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:42:40,620 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:42:40,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:42:40,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:42:40,630 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:42:40,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:40,633 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48a1523e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40, skipping insertion in model container [2022-11-26 00:42:40,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:40,641 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:42:40,680 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:42:40,875 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_8f27c08c-23e0-4fcb-8e14-b7180d81da34/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2022-11-26 00:42:40,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:42:40,896 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:42:40,939 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_8f27c08c-23e0-4fcb-8e14-b7180d81da34/sv-benchmarks/c/float-newlib/double_req_bl_1130a.c[4166,4179] [2022-11-26 00:42:40,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:42:40,957 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:42:40,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40 WrapperNode [2022-11-26 00:42:40,958 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:42:40,959 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:42:40,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:42:40,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:42:40,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:40,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:41,020 INFO L138 Inliner]: procedures = 22, calls = 39, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 242 [2022-11-26 00:42:41,020 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:42:41,021 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:42:41,021 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:42:41,021 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:42:41,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:41,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:41,036 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:41,037 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:41,049 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:41,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:41,058 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:41,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:41,064 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:42:41,065 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:42:41,065 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:42:41,066 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:42:41,067 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (1/1) ... [2022-11-26 00:42:41,073 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:42:41,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:42:41,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:42:41,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:42:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:42:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2022-11-26 00:42:41,162 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2022-11-26 00:42:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:42:41,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:42:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2022-11-26 00:42:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-26 00:42:41,164 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:42:41,164 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:42:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:42:41,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:42:41,307 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:42:41,309 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:42:46,824 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:42:46,830 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:42:46,834 INFO L300 CfgBuilder]: Removed 16 assume(true) statements. [2022-11-26 00:42:46,837 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:42:46 BoogieIcfgContainer [2022-11-26 00:42:46,837 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:42:46,839 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:42:46,839 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:42:46,842 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:42:46,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:42:40" (1/3) ... [2022-11-26 00:42:46,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0e414e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:42:46, skipping insertion in model container [2022-11-26 00:42:46,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:42:40" (2/3) ... [2022-11-26 00:42:46,844 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f0e414e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:42:46, skipping insertion in model container [2022-11-26 00:42:46,844 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:42:46" (3/3) ... [2022-11-26 00:42:46,845 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1130a.c [2022-11-26 00:42:46,859 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:42:46,859 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:42:46,907 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:42:46,913 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;@330ae32b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:42:46,914 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:42:46,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 59 states have (on average 1.7966101694915255) internal successors, (106), 60 states have internal predecessors, (106), 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) [2022-11-26 00:42:46,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-26 00:42:46,925 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:46,925 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:42:46,926 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:42:46,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:46,932 INFO L85 PathProgramCache]: Analyzing trace with hash 464220005, now seen corresponding path program 1 times [2022-11-26 00:42:46,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:42:46,945 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1653879605] [2022-11-26 00:42:46,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:46,945 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 [2022-11-26 00:42:46,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:42:46,951 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:42:46,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:42:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:48,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-26 00:42:48,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:42:48,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:42:48,110 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:42:48,110 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:42:48,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1653879605] [2022-11-26 00:42:48,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1653879605] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:48,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:48,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:42:48,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379721793] [2022-11-26 00:42:48,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:48,119 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-26 00:42:48,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:42:48,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-26 00:42:48,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:42:48,153 INFO L87 Difference]: Start difference. First operand has 61 states, 59 states have (on average 1.7966101694915255) internal successors, (106), 60 states have internal predecessors, (106), 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 5.5) internal successors, (11), 2 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) [2022-11-26 00:42:48,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:42:48,177 INFO L93 Difference]: Finished difference Result 119 states and 208 transitions. [2022-11-26 00:42:48,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-26 00:42:48,185 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) Word has length 11 [2022-11-26 00:42:48,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:42:48,195 INFO L225 Difference]: With dead ends: 119 [2022-11-26 00:42:48,195 INFO L226 Difference]: Without dead ends: 57 [2022-11-26 00:42:48,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-26 00:42:48,202 INFO L413 NwaCegarLoop]: 89 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, 89 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 [2022-11-26 00:42:48,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:42:48,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-26 00:42:48,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-26 00:42:48,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.5) internal successors, (84), 56 states have internal predecessors, (84), 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) [2022-11-26 00:42:48,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2022-11-26 00:42:48,247 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 11 [2022-11-26 00:42:48,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:42:48,248 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2022-11-26 00:42:48,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 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) [2022-11-26 00:42:48,248 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2022-11-26 00:42:48,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-26 00:42:48,249 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:42:48,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:42:48,279 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:42:48,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:42:48,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:42:48,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:42:48,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1051323842, now seen corresponding path program 1 times [2022-11-26 00:42:48,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:42:48,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1937503624] [2022-11-26 00:42:48,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:42:48,458 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 [2022-11-26 00:42:48,458 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:42:48,460 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:42:48,462 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:42:49,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:42:49,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-26 00:42:49,594 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:42:49,975 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 16 [2022-11-26 00:42:50,516 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2022-11-26 00:42:59,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:42:59,348 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:42:59,348 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:42:59,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1937503624] [2022-11-26 00:42:59,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1937503624] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:42:59,352 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:42:59,352 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-26 00:42:59,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969914057] [2022-11-26 00:42:59,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:42:59,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-26 00:42:59,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:42:59,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-26 00:42:59,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=29, Unknown=2, NotChecked=0, Total=42 [2022-11-26 00:42:59,355 INFO L87 Difference]: Start difference. First operand 57 states and 84 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2022-11-26 00:43:02,374 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:12,662 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:14,712 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:16,750 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:18,787 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:20,794 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:22,826 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:24,859 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:26,865 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:28,876 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:30,915 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:32,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:34,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:37,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:39,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:41,044 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:43,053 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:45,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:47,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:49,087 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:51,137 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:53,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:55,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:57,195 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:43:59,242 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:44:01,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:44:03,321 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:44:05,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:44:07,339 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:44:09,345 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:44:12,039 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:44:14,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-26 00:44:18,155 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-26 00:44:18,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:44:18,157 INFO L93 Difference]: Finished difference Result 118 states and 167 transitions. [2022-11-26 00:44:18,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-26 00:44:18,184 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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 13 [2022-11-26 00:44:18,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:44:18,185 INFO L225 Difference]: With dead ends: 118 [2022-11-26 00:44:18,185 INFO L226 Difference]: Without dead ends: 73 [2022-11-26 00:44:18,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 17.6s TimeCoverageRelationStatistics Valid=33, Invalid=73, Unknown=4, NotChecked=0, Total=110 [2022-11-26 00:44:18,187 INFO L413 NwaCegarLoop]: 59 mSDtfsCounter, 201 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 3 mSolverCounterUnsat, 33 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 69.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 163 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 33 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 69.9s IncrementalHoareTripleChecker+Time [2022-11-26 00:44:18,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 163 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 112 Invalid, 33 Unknown, 0 Unchecked, 69.9s Time] [2022-11-26 00:44:18,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-26 00:44:18,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 55. [2022-11-26 00:44:18,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 54 states have internal predecessors, (77), 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) [2022-11-26 00:44:18,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 77 transitions. [2022-11-26 00:44:18,200 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 77 transitions. Word has length 13 [2022-11-26 00:44:18,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:44:18,200 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 77 transitions. [2022-11-26 00:44:18,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 7 states have internal predecessors, (13), 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) [2022-11-26 00:44:18,201 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 77 transitions. [2022-11-26 00:44:18,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:44:18,201 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:44:18,201 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:18,228 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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)] Ended with exit code 0 [2022-11-26 00:44:18,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:44:18,415 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:44:18,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:44:18,416 INFO L85 PathProgramCache]: Analyzing trace with hash 734189607, now seen corresponding path program 1 times [2022-11-26 00:44:18,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:44:18,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [903004150] [2022-11-26 00:44:18,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:18,416 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 [2022-11-26 00:44:18,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:44:18,418 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:44:18,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 (4)] Waiting until timeout for monitored process [2022-11-26 00:44:18,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:44:18,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-26 00:44:18,526 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:44:18,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:44:18,943 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:44:18,944 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:44:18,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [903004150] [2022-11-26 00:44:18,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [903004150] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:44:18,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:44:18,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-26 00:44:18,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667244978] [2022-11-26 00:44:18,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:44:18,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-26 00:44:18,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:44:18,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-26 00:44:18,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-26 00:44:18,946 INFO L87 Difference]: Start difference. First operand 55 states and 77 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-11-26 00:44:20,829 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-26 00:44:20,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:44:20,931 INFO L93 Difference]: Finished difference Result 76 states and 97 transitions. [2022-11-26 00:44:20,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-26 00:44:20,931 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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 15 [2022-11-26 00:44:20,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:44:20,932 INFO L225 Difference]: With dead ends: 76 [2022-11-26 00:44:20,933 INFO L226 Difference]: Without dead ends: 73 [2022-11-26 00:44:20,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-11-26 00:44:20,934 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 175 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:44:20,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 223 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-26 00:44:20,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-11-26 00:44:20,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 57. [2022-11-26 00:44:20,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.4107142857142858) internal successors, (79), 56 states have internal predecessors, (79), 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) [2022-11-26 00:44:20,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 79 transitions. [2022-11-26 00:44:20,946 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 79 transitions. Word has length 15 [2022-11-26 00:44:20,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:44:20,946 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 79 transitions. [2022-11-26 00:44:20,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 6 states have internal predecessors, (15), 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) [2022-11-26 00:44:20,947 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 79 transitions. [2022-11-26 00:44:20,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:44:20,947 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:44:20,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:20,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 (4)] Forceful destruction successful, exit code 0 [2022-11-26 00:44:21,161 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:44:21,161 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:44:21,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:44:21,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1151454894, now seen corresponding path program 1 times [2022-11-26 00:44:21,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:44:21,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884233058] [2022-11-26 00:44:21,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:21,164 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 [2022-11-26 00:44:21,165 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:44:21,167 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:44:21,176 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 (5)] Waiting until timeout for monitored process [2022-11-26 00:44:21,261 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:44:21,262 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_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 (5) 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:337) 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_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 (5) 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 [2022-11-26 00:44:21,266 INFO L158 Benchmark]: Toolchain (without parser) took 100645.11ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 54.0MB in the beginning and 61.8MB in the end (delta: -7.8MB). Peak memory consumption was 19.4MB. Max. memory is 16.1GB. [2022-11-26 00:44:21,266 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:44:21,266 INFO L158 Benchmark]: CACSL2BoogieTranslator took 331.83ms. Allocated memory is still 75.5MB. Free memory was 53.8MB in the beginning and 39.4MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:44:21,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.47ms. Allocated memory is still 75.5MB. Free memory was 39.4MB in the beginning and 37.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:44:21,267 INFO L158 Benchmark]: Boogie Preprocessor took 43.64ms. Allocated memory is still 75.5MB. Free memory was 37.0MB in the beginning and 34.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:44:21,267 INFO L158 Benchmark]: RCFGBuilder took 5771.64ms. Allocated memory is still 75.5MB. Free memory was 34.6MB in the beginning and 37.9MB in the end (delta: -3.3MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. [2022-11-26 00:44:21,267 INFO L158 Benchmark]: TraceAbstraction took 94426.22ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 37.2MB in the beginning and 61.8MB in the end (delta: -24.6MB). Peak memory consumption was 2.0MB. Max. memory is 16.1GB. [2022-11-26 00:44:21,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2022-11-26 00:44:21,262 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 (5)] Forceful destruction successful, exit code 139 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory is still 54.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 331.83ms. Allocated memory is still 75.5MB. Free memory was 53.8MB in the beginning and 39.4MB in the end (delta: 14.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.47ms. Allocated memory is still 75.5MB. Free memory was 39.4MB in the beginning and 37.0MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.64ms. Allocated memory is still 75.5MB. Free memory was 37.0MB in the beginning and 34.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 5771.64ms. Allocated memory is still 75.5MB. Free memory was 34.6MB in the beginning and 37.9MB in the end (delta: -3.3MB). Peak memory consumption was 9.1MB. Max. memory is 16.1GB. * TraceAbstraction took 94426.22ms. Allocated memory was 75.5MB in the beginning and 100.7MB in the end (delta: 25.2MB). Free memory was 37.2MB in the beginning and 61.8MB in the end (delta: -24.6MB). Peak memory consumption was 2.0MB. 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_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 (5) 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_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 (5) 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. [2022-11-26 00:44:21,494 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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_8f27c08c-23e0-4fcb-8e14-b7180d81da34/bin/utaipan-ByfvJB40ur/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 (5) with exit command (exit)) Received EOF on stdin. No stderr output.