./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d --- 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 [2022-11-25 22:30:05,798 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:30:05,800 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:30:05,822 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:30:05,822 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:30:05,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:30:05,824 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:30:05,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:30:05,828 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:30:05,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:30:05,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:30:05,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:30:05,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:30:05,832 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:30:05,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:30:05,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:30:05,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:30:05,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:30:05,839 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:30:05,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:30:05,842 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:30:05,843 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:30:05,845 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:30:05,846 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:30:05,849 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:30:05,849 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:30:05,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:30:05,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:30:05,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:30:05,852 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:30:05,853 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:30:05,853 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:30:05,854 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:30:05,866 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:30:05,867 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:30:05,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:30:05,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:30:05,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:30:05,868 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:30:05,869 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:30:05,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:30:05,871 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-25 22:30:05,907 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:30:05,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:30:05,908 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:30:05,908 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:30:05,909 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:30:05,909 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:30:05,909 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:30:05,909 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:30:05,910 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:30:05,910 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:30:05,910 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:30:05,910 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:30:05,911 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:30:05,911 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:30:05,911 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:30:05,911 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:30:05,911 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:30:05,912 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:30:05,912 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:30:05,913 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:30:05,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:30:05,913 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:30:05,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:30:05,914 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:30:05,916 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:30:05,917 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:30:05,917 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:30:05,917 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:30:05,918 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:30:05,918 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:30:05,918 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:30:05,919 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:30:05,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:30:05,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:30:05,920 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:30:05,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:30:05,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:30:05,921 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:30:05,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:30:05,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:30:05,922 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:30:05,922 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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d [2022-11-25 22:30:06,189 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:30:06,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:30:06,220 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:30:06,221 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:30:06,222 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:30:06,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2022-11-25 22:30:09,339 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:30:09,649 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:30:09,651 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2022-11-25 22:30:09,660 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/data/68ed41686/26037c36e7774160b7bcbd751b6616e4/FLAGb110d1e49 [2022-11-25 22:30:09,677 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/data/68ed41686/26037c36e7774160b7bcbd751b6616e4 [2022-11-25 22:30:09,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:30:09,685 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:30:09,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:30:09,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:30:09,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:30:09,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:30:09" (1/1) ... [2022-11-25 22:30:09,695 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@127cbce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:09, skipping insertion in model container [2022-11-25 22:30:09,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:30:09" (1/1) ... [2022-11-25 22:30:09,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:30:09,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:30:09,944 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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2022-11-25 22:30:09,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:30:09,959 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:30:10,003 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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2022-11-25 22:30:10,004 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:30:10,020 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:30:10,020 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10 WrapperNode [2022-11-25 22:30:10,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:30:10,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:30:10,022 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:30:10,022 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:30:10,029 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (1/1) ... [2022-11-25 22:30:10,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (1/1) ... [2022-11-25 22:30:10,097 INFO L138 Inliner]: procedures = 19, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 257 [2022-11-25 22:30:10,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:30:10,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:30:10,104 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:30:10,104 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:30:10,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (1/1) ... [2022-11-25 22:30:10,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (1/1) ... [2022-11-25 22:30:10,133 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (1/1) ... [2022-11-25 22:30:10,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (1/1) ... [2022-11-25 22:30:10,152 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (1/1) ... [2022-11-25 22:30:10,158 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (1/1) ... [2022-11-25 22:30:10,160 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (1/1) ... [2022-11-25 22:30:10,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (1/1) ... [2022-11-25 22:30:10,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:30:10,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:30:10,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:30:10,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:30:10,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (1/1) ... [2022-11-25 22:30:10,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:30:10,188 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:30:10,203 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:30:10,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:30:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:30:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:30:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:30:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-25 22:30:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:30:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-25 22:30:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:30:10,244 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:30:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:30:10,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:30:10,341 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:30:10,344 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:30:10,758 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:30:10,844 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:30:10,844 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-25 22:30:10,847 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:10 BoogieIcfgContainer [2022-11-25 22:30:10,847 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:30:10,850 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:30:10,850 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:30:10,853 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:30:10,853 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:30:09" (1/3) ... [2022-11-25 22:30:10,854 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37979e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:30:10, skipping insertion in model container [2022-11-25 22:30:10,854 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:10" (2/3) ... [2022-11-25 22:30:10,855 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37979e7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:30:10, skipping insertion in model container [2022-11-25 22:30:10,855 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:10" (3/3) ... [2022-11-25 22:30:10,856 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270b.c [2022-11-25 22:30:10,876 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:30:10,876 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:30:10,927 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:30:10,935 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;@6c23831a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:30:10,936 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:30:10,942 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 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) [2022-11-25 22:30:10,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:30:10,951 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:10,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:10,955 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:30:10,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:10,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1760934509, now seen corresponding path program 1 times [2022-11-25 22:30:10,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:10,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209596346] [2022-11-25 22:30:10,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:10,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:11,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:11,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:30:11,193 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:30:11,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209596346] [2022-11-25 22:30:11,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209596346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:11,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:11,196 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:30:11,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102555711] [2022-11-25 22:30:11,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:11,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:30:11,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:30:11,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:30:11,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:30:11,265 INFO L87 Difference]: Start difference. First operand has 46 states, 44 states have (on average 1.7045454545454546) internal successors, (75), 45 states have internal predecessors, (75), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-25 22:30:11,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:11,328 INFO L93 Difference]: Finished difference Result 91 states and 149 transitions. [2022-11-25 22:30:11,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:30:11,332 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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 8 [2022-11-25 22:30:11,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:11,343 INFO L225 Difference]: With dead ends: 91 [2022-11-25 22:30:11,343 INFO L226 Difference]: Without dead ends: 44 [2022-11-25 22:30:11,347 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 [2022-11-25 22:30:11,354 INFO L413 NwaCegarLoop]: 48 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:11,356 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:30:11,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-25 22:30:11,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-25 22:30:11,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.302325581395349) internal successors, (56), 43 states have internal predecessors, (56), 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) [2022-11-25 22:30:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2022-11-25 22:30:11,399 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 8 [2022-11-25 22:30:11,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:11,400 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2022-11-25 22:30:11,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 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) [2022-11-25 22:30:11,401 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2022-11-25 22:30:11,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:30:11,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:11,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:11,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:30:11,403 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:30:11,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:11,403 INFO L85 PathProgramCache]: Analyzing trace with hash -971347180, now seen corresponding path program 1 times [2022-11-25 22:30:11,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:30:11,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61197975] [2022-11-25 22:30:11,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:11,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:30:11,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:30:11,443 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:30:11,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:30:11,505 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:30:11,506 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:30:11,508 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 22:30:11,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 22:30:11,512 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:30:11,516 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:30:11,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:30:11 BoogieIcfgContainer [2022-11-25 22:30:11,553 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:30:11,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:30:11,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:30:11,555 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:30:11,556 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:10" (3/4) ... [2022-11-25 22:30:11,560 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:30:11,560 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:30:11,561 INFO L158 Benchmark]: Toolchain (without parser) took 1875.69ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 109.9MB in the beginning and 128.6MB in the end (delta: -18.7MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-11-25 22:30:11,562 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 142.6MB. Free memory is still 112.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:30:11,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 332.03ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 96.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 22:30:11,572 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.37ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 93.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:30:11,573 INFO L158 Benchmark]: Boogie Preprocessor took 62.22ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 91.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:30:11,577 INFO L158 Benchmark]: RCFGBuilder took 681.10ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 63.3MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-25 22:30:11,578 INFO L158 Benchmark]: TraceAbstraction took 703.61ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 62.9MB in the beginning and 128.6MB in the end (delta: -65.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:30:11,579 INFO L158 Benchmark]: Witness Printer took 5.34ms. Allocated memory is still 176.2MB. Free memory is still 128.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:30:11,582 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 142.6MB. Free memory is still 112.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 332.03ms. Allocated memory is still 142.6MB. Free memory was 109.5MB in the beginning and 96.3MB in the end (delta: 13.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.37ms. Allocated memory is still 142.6MB. Free memory was 96.3MB in the beginning and 93.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.22ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 91.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 681.10ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 63.3MB in the end (delta: 28.0MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 703.61ms. Allocated memory was 142.6MB in the beginning and 176.2MB in the end (delta: 33.6MB). Free memory was 62.9MB in the beginning and 128.6MB in the end (delta: -65.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.34ms. Allocated memory is still 176.2MB. Free memory is still 128.6MB. 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: 200]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 199, overapproximation of someUnaryDOUBLEoperation at line 113, overapproximation of bitwiseAnd at line 127, overapproximation of someUnaryFLOAToperation at line 111, overapproximation of someBinaryArithmeticFLOAToperation at line 130. Possible FailurePath: [L26] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L109-L117] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; [L195] float x = 0.0f; [L196] CALL, EXPR __ieee754_asinf(x) [L120] float t, w, p, q, c, r, s; [L121] __int32_t hx, ix; VAL [\old(x)=0, huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L123] ieee_float_shape_type gf_u; [L124] gf_u.value = (x) [L125] EXPR gf_u.word [L125] (hx) = gf_u.word [L127] ix = hx & 0x7fffffff VAL [\old(x)=0, huge_asin=1000000000000000000000000000000, hx=1065353216, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L128] COND TRUE ix == 0x3f800000 [L130] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=0, huge_asin=1000000000000000000000000000000, hx=1065353216, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L196] RET, EXPR __ieee754_asinf(x) [L196] float res = __ieee754_asinf(x); [L199] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000001, res == 0.0f && __signbit_float(res) == 0=0, tiny_sqrt=1/1000000000000000000000000000000, x=0] [L199] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L200] reach_error() VAL [huge_asin=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=1000000000000000000000000000001, tiny_sqrt=1/1000000000000000000000000000000, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, 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, 0.0s 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, 10 IncrementalHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 48 mSDtfsCounter, 10 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=46occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 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 [2022-11-25 22:30:11,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d --- 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 [2022-11-25 22:30:14,324 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:30:14,327 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:30:14,389 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:30:14,390 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:30:14,394 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:30:14,397 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:30:14,400 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:30:14,402 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:30:14,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:30:14,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:30:14,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:30:14,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:30:14,415 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:30:14,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:30:14,423 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:30:14,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:30:14,425 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:30:14,427 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:30:14,433 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:30:14,435 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:30:14,438 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:30:14,439 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:30:14,441 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:30:14,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:30:14,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:30:14,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:30:14,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:30:14,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:30:14,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:30:14,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:30:14,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:30:14,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:30:14,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:30:14,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:30:14,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:30:14,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:30:14,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:30:14,462 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:30:14,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:30:14,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:30:14,465 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-25 22:30:14,506 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:30:14,507 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:30:14,508 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:30:14,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:30:14,510 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:30:14,510 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:30:14,510 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:30:14,510 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:30:14,510 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:30:14,511 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:30:14,512 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:30:14,512 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:30:14,513 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:30:14,513 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 22:30:14,513 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 22:30:14,514 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:30:14,514 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:30:14,514 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:30:14,514 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:30:14,514 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:30:14,515 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:30:14,515 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:30:14,515 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 22:30:14,515 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:30:14,516 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:30:14,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:30:14,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:30:14,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:30:14,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:30:14,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:30:14,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:30:14,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:30:14,518 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:30:14,518 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:30:14,518 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:30:14,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:30:14,518 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:30:14,519 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:30:14,519 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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cac107c363e3fd6d917de6ef8bceef6babf5688036a19c829686ca43ca0273d [2022-11-25 22:30:14,947 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:30:14,982 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:30:14,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:30:14,986 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:30:14,987 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:30:14,988 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2022-11-25 22:30:18,234 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:30:18,469 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:30:18,470 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c [2022-11-25 22:30:18,477 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/data/660705c40/508025f00f27412a880ede273e862087/FLAGd8a0a72c4 [2022-11-25 22:30:18,494 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/data/660705c40/508025f00f27412a880ede273e862087 [2022-11-25 22:30:18,496 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:30:18,497 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:30:18,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:30:18,499 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:30:18,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:30:18,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:18,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@175fb928 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18, skipping insertion in model container [2022-11-25 22:30:18,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:18,515 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:30:18,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:30:18,784 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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2022-11-25 22:30:18,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:30:18,813 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:30:18,916 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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/sv-benchmarks/c/float-newlib/float_req_bl_0270b.c[4700,4713] [2022-11-25 22:30:18,916 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:30:18,940 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:30:18,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18 WrapperNode [2022-11-25 22:30:18,941 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:30:18,942 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:30:18,943 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:30:18,943 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:30:18,951 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:18,977 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:19,025 INFO L138 Inliner]: procedures = 22, calls = 43, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 257 [2022-11-25 22:30:19,029 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:30:19,029 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:30:19,030 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:30:19,030 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:30:19,040 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:19,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:19,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:19,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:19,084 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:19,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:19,092 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:19,094 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:19,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:30:19,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:30:19,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:30:19,100 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:30:19,101 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (1/1) ... [2022-11-25 22:30:19,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:30:19,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:30:19,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:30:19,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:30:19,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:30:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:30:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:30:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2022-11-25 22:30:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 22:30:19,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:30:19,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:30:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2022-11-25 22:30:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 22:30:19,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:30:19,303 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:30:19,305 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:30:29,987 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:30:29,994 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:30:29,995 INFO L300 CfgBuilder]: Removed 18 assume(true) statements. [2022-11-25 22:30:30,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:29 BoogieIcfgContainer [2022-11-25 22:30:30,000 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:30:30,002 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:30:30,003 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:30:30,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:30:30,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:30:18" (1/3) ... [2022-11-25 22:30:30,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504dfb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:30:30, skipping insertion in model container [2022-11-25 22:30:30,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:30:18" (2/3) ... [2022-11-25 22:30:30,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@504dfb8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:30:30, skipping insertion in model container [2022-11-25 22:30:30,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:30:29" (3/3) ... [2022-11-25 22:30:30,010 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0270b.c [2022-11-25 22:30:30,031 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:30:30,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 22:30:30,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:30:30,082 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;@3946a00c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:30:30,083 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 22:30:30,086 INFO L276 IsEmpty]: Start isEmpty. Operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 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) [2022-11-25 22:30:30,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:30:30,092 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:30,093 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:30,093 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:30:30,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:30,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1900514974, now seen corresponding path program 1 times [2022-11-25 22:30:30,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:30:30,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [289060713] [2022-11-25 22:30:30,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:30,110 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 [2022-11-25 22:30:30,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:30:30,112 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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) [2022-11-25 22:30:30,115 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 [2022-11-25 22:30:30,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:30,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 22:30:30,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:30:30,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:30:30,766 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:30:30,767 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:30:30,768 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [289060713] [2022-11-25 22:30:30,768 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [289060713] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:30,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:30,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:30:30,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [901795566] [2022-11-25 22:30:30,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:30,776 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:30:30,776 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:30:30,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:30:30,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:30:30,810 INFO L87 Difference]: Start difference. First operand has 60 states, 58 states have (on average 1.6724137931034482) internal successors, (97), 59 states have internal predecessors, (97), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:30:30,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:30,835 INFO L93 Difference]: Finished difference Result 118 states and 192 transitions. [2022-11-25 22:30:30,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:30:30,837 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-25 22:30:30,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:30,847 INFO L225 Difference]: With dead ends: 118 [2022-11-25 22:30:30,847 INFO L226 Difference]: Without dead ends: 57 [2022-11-25 22:30:30,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:30:30,853 INFO L413 NwaCegarLoop]: 78 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, 78 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 [2022-11-25 22:30:30,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:30:30,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-25 22:30:30,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-25 22:30:30,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.3392857142857142) internal successors, (75), 56 states have internal predecessors, (75), 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) [2022-11-25 22:30:30,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 75 transitions. [2022-11-25 22:30:30,892 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 75 transitions. Word has length 9 [2022-11-25 22:30:30,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:30,893 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 75 transitions. [2022-11-25 22:30:30,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:30:30,893 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 75 transitions. [2022-11-25 22:30:30,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-25 22:30:30,894 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:30,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:30,915 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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)] Ended with exit code 0 [2022-11-25 22:30:31,105 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 [2022-11-25 22:30:31,106 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:30:31,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:31,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1487835839, now seen corresponding path program 1 times [2022-11-25 22:30:31,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:30:31,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [442599368] [2022-11-25 22:30:31,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:31,108 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 [2022-11-25 22:30:31,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:30:31,109 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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) [2022-11-25 22:30:31,160 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 [2022-11-25 22:30:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:31,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-25 22:30:31,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:30:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:30:32,178 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:30:32,178 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:30:32,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [442599368] [2022-11-25 22:30:32,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [442599368] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:32,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:32,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:30:32,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744624497] [2022-11-25 22:30:32,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:32,181 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:30:32,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:30:32,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:30:32,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:32,183 INFO L87 Difference]: Start difference. First operand 57 states and 75 transitions. Second operand has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2022-11-25 22:30:34,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:34,002 INFO L93 Difference]: Finished difference Result 104 states and 135 transitions. [2022-11-25 22:30:34,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 22:30:34,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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 [2022-11-25 22:30:34,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:34,006 INFO L225 Difference]: With dead ends: 104 [2022-11-25 22:30:34,009 INFO L226 Difference]: Without dead ends: 57 [2022-11-25 22:30:34,011 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-25 22:30:34,014 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 196 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:34,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [196 Valid, 62 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2022-11-25 22:30:34,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-25 22:30:34,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-25 22:30:34,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 56 states have internal predecessors, (69), 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) [2022-11-25 22:30:34,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 69 transitions. [2022-11-25 22:30:34,040 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 69 transitions. Word has length 10 [2022-11-25 22:30:34,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:34,041 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 69 transitions. [2022-11-25 22:30:34,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.0) internal successors, (10), 5 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) [2022-11-25 22:30:34,041 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 69 transitions. [2022-11-25 22:30:34,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 22:30:34,043 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:34,043 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:34,075 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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)] Forceful destruction successful, exit code 0 [2022-11-25 22:30:34,269 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 [2022-11-25 22:30:34,269 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:30:34,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:34,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1089938183, now seen corresponding path program 1 times [2022-11-25 22:30:34,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:30:34,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1671917385] [2022-11-25 22:30:34,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:34,271 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 [2022-11-25 22:30:34,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:30:34,272 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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) [2022-11-25 22:30:34,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 [2022-11-25 22:30:34,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:34,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 22:30:34,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:30:35,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:30:35,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:30:35,187 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:30:35,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1671917385] [2022-11-25 22:30:35,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1671917385] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:35,188 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:35,188 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-25 22:30:35,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075120036] [2022-11-25 22:30:35,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:35,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 22:30:35,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:30:35,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 22:30:35,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 22:30:35,190 INFO L87 Difference]: Start difference. First operand 57 states and 69 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-11-25 22:30:35,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:35,850 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2022-11-25 22:30:35,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-25 22:30:35,851 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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 14 [2022-11-25 22:30:35,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:35,852 INFO L225 Difference]: With dead ends: 69 [2022-11-25 22:30:35,852 INFO L226 Difference]: Without dead ends: 66 [2022-11-25 22:30:35,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-25 22:30:35,854 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 83 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:35,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 182 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 22:30:35,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-25 22:30:35,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 59. [2022-11-25 22:30:35,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 58 states have (on average 1.2241379310344827) internal successors, (71), 58 states have internal predecessors, (71), 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) [2022-11-25 22:30:35,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 71 transitions. [2022-11-25 22:30:35,870 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 71 transitions. Word has length 14 [2022-11-25 22:30:35,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:35,870 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 71 transitions. [2022-11-25 22:30:35,871 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 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) [2022-11-25 22:30:35,871 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 71 transitions. [2022-11-25 22:30:35,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 22:30:35,872 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:35,872 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:35,899 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 [2022-11-25 22:30:36,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 [2022-11-25 22:30:36,094 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:30:36,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:36,095 INFO L85 PathProgramCache]: Analyzing trace with hash 980104924, now seen corresponding path program 1 times [2022-11-25 22:30:36,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:30:36,095 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967091374] [2022-11-25 22:30:36,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:36,096 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 [2022-11-25 22:30:36,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:30:36,097 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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) [2022-11-25 22:30:36,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 [2022-11-25 22:30:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:30:36,661 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-25 22:30:36,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:30:37,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:30:37,652 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:30:37,652 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:30:37,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967091374] [2022-11-25 22:30:37,653 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967091374] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:30:37,653 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:30:37,653 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-11-25 22:30:37,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716777089] [2022-11-25 22:30:37,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:30:37,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-25 22:30:37,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:30:37,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-25 22:30:37,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-11-25 22:30:37,655 INFO L87 Difference]: Start difference. First operand 59 states and 71 transitions. Second operand has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:30:39,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:30:39,206 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2022-11-25 22:30:39,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-25 22:30:39,207 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-25 22:30:39,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:30:39,208 INFO L225 Difference]: With dead ends: 66 [2022-11-25 22:30:39,208 INFO L226 Difference]: Without dead ends: 57 [2022-11-25 22:30:39,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-25 22:30:39,210 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 91 mSDsluCounter, 364 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 22:30:39,210 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 424 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 22:30:39,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-25 22:30:39,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2022-11-25 22:30:39,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 56 states have internal predecessors, (68), 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) [2022-11-25 22:30:39,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 68 transitions. [2022-11-25 22:30:39,219 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 68 transitions. Word has length 18 [2022-11-25 22:30:39,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:30:39,219 INFO L495 AbstractCegarLoop]: Abstraction has 57 states and 68 transitions. [2022-11-25 22:30:39,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.0) internal successors, (18), 9 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 22:30:39,220 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 68 transitions. [2022-11-25 22:30:39,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-11-25 22:30:39,221 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:30:39,221 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:30:39,239 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 0 [2022-11-25 22:30:39,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 [2022-11-25 22:30:39,426 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 22:30:39,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:30:39,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1296197232, now seen corresponding path program 1 times [2022-11-25 22:30:39,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:30:39,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170385556] [2022-11-25 22:30:39,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:30:39,428 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 [2022-11-25 22:30:39,428 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:30:39,430 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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) [2022-11-25 22:30:39,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 (6)] Waiting until timeout for monitored process [2022-11-25 22:30:39,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 (6)] Ended with exit code 139 [2022-11-25 22:30:39,891 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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 (6) 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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 (6) 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 [2022-11-25 22:30:39,896 INFO L158 Benchmark]: Toolchain (without parser) took 21398.24ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 40.9MB in the beginning and 51.3MB in the end (delta: -10.4MB). Peak memory consumption was 7.3MB. Max. memory is 16.1GB. [2022-11-25 22:30:39,896 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 69.2MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:30:39,896 INFO L158 Benchmark]: CACSL2BoogieTranslator took 442.93ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 40.6MB in the beginning and 64.3MB in the end (delta: -23.7MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. [2022-11-25 22:30:39,897 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.41ms. Allocated memory is still 86.0MB. Free memory was 64.3MB in the beginning and 61.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:30:39,897 INFO L158 Benchmark]: Boogie Preprocessor took 69.66ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 59.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:30:39,897 INFO L158 Benchmark]: RCFGBuilder took 10900.49ms. Allocated memory is still 86.0MB. Free memory was 59.3MB in the beginning and 60.7MB in the end (delta: -1.4MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2022-11-25 22:30:39,898 INFO L158 Benchmark]: TraceAbstraction took 9892.60ms. Allocated memory is still 86.0MB. Free memory was 60.0MB in the beginning and 51.3MB in the end (delta: 8.7MB). Peak memory consumption was 9.4MB. Max. memory is 16.1GB. [2022-11-25 22:30:39,900 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 69.2MB. Free memory is still 47.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 442.93ms. Allocated memory was 69.2MB in the beginning and 86.0MB in the end (delta: 16.8MB). Free memory was 40.6MB in the beginning and 64.3MB in the end (delta: -23.7MB). Peak memory consumption was 14.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.41ms. Allocated memory is still 86.0MB. Free memory was 64.3MB in the beginning and 61.7MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.66ms. Allocated memory is still 86.0MB. Free memory was 61.7MB in the beginning and 59.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 10900.49ms. Allocated memory is still 86.0MB. Free memory was 59.3MB in the beginning and 60.7MB in the end (delta: -1.4MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9892.60ms. Allocated memory is still 86.0MB. Free memory was 60.0MB in the beginning and 51.3MB in the end (delta: 8.7MB). Peak memory consumption was 9.4MB. 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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 (6) 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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 (6) 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. [2022-11-25 22:30:40,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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_88e3ee06-c54a-47d5-88b9-4a51e2dcd998/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 (6) with exit command (exit)) Received EOF on stdin. No stderr output.