./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e42e84729022b725ebcfce66d0ece68757a1a9b385230356b4d45a24fc6b4ef2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:55:11,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:55:11,057 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:55:11,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:55:11,080 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:55:11,082 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:55:11,083 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:55:11,085 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:55:11,087 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:55:11,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:55:11,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:55:11,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:55:11,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:55:11,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:55:11,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:55:11,094 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:55:11,095 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:55:11,097 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:55:11,099 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:55:11,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:55:11,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:55:11,104 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:55:11,105 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:55:11,106 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:55:11,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:55:11,111 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:55:11,111 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:55:11,112 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:55:11,113 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:55:11,114 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:55:11,114 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:55:11,116 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:55:11,117 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:55:11,118 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:55:11,119 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:55:11,120 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:55:11,121 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:55:11,121 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:55:11,122 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:55:11,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:55:11,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:55:11,127 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-22 01:55:11,169 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:55:11,170 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:55:11,170 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:55:11,171 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:55:11,172 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:55:11,172 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:55:11,172 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:55:11,173 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:55:11,173 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:55:11,173 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-22 01:55:11,174 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:55:11,174 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:55:11,177 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-22 01:55:11,178 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-22 01:55:11,179 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:55:11,179 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-22 01:55:11,179 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-22 01:55:11,179 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-22 01:55:11,180 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:55:11,181 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:55:11,181 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-22 01:55:11,181 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:55:11,181 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:55:11,182 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:55:11,182 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:55:11,183 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:55:11,183 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:55:11,183 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:55:11,184 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:55:11,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:55:11,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:55:11,186 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:55:11,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:55:11,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:55:11,187 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-22 01:55:11,187 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:55:11,188 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:55:11,189 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-22 01:55:11,189 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-22 01:55:11,189 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:55:11,190 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:55:11,190 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_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e42e84729022b725ebcfce66d0ece68757a1a9b385230356b4d45a24fc6b4ef2 [2022-11-22 01:55:11,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:55:11,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:55:11,601 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:55:11,602 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:55:11,603 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:55:11,604 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-benchs/filter2.c [2022-11-22 01:55:14,815 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:55:15,028 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:55:15,029 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/sv-benchmarks/c/float-benchs/filter2.c [2022-11-22 01:55:15,036 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/data/3eb5b2c0a/57b920db540647b081758dd8569185a9/FLAG4ae75169d [2022-11-22 01:55:15,053 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/data/3eb5b2c0a/57b920db540647b081758dd8569185a9 [2022-11-22 01:55:15,056 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:55:15,058 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:55:15,060 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:55:15,060 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:55:15,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:55:15,065 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,066 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14582ce3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15, skipping insertion in model container [2022-11-22 01:55:15,067 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,076 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:55:15,092 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:55:15,285 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_dbe54479-155e-4333-ae95-abfc5618009c/sv-benchmarks/c/float-benchs/filter2.c[652,665] [2022-11-22 01:55:15,317 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:55:15,331 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:55:15,346 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_dbe54479-155e-4333-ae95-abfc5618009c/sv-benchmarks/c/float-benchs/filter2.c[652,665] [2022-11-22 01:55:15,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:55:15,367 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:55:15,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15 WrapperNode [2022-11-22 01:55:15,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:55:15,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:55:15,369 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:55:15,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:55:15,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,401 INFO L138 Inliner]: procedures = 14, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 50 [2022-11-22 01:55:15,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:55:15,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:55:15,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:55:15,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:55:15,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,429 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,434 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:55:15,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:55:15,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:55:15,438 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:55:15,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (1/1) ... [2022-11-22 01:55:15,446 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:55:15,460 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:15,474 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:55:15,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:55:15,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:55:15,538 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:55:15,538 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:55:15,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-22 01:55:15,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:55:15,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:55:15,630 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:55:15,632 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:55:15,819 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:55:15,848 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:55:15,848 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:55:15,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:15 BoogieIcfgContainer [2022-11-22 01:55:15,851 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:55:15,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:55:15,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:55:15,859 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:55:15,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:55:15" (1/3) ... [2022-11-22 01:55:15,860 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618bf999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:55:15, skipping insertion in model container [2022-11-22 01:55:15,860 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:15" (2/3) ... [2022-11-22 01:55:15,861 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@618bf999 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:55:15, skipping insertion in model container [2022-11-22 01:55:15,861 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:15" (3/3) ... [2022-11-22 01:55:15,863 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2.c [2022-11-22 01:55:15,889 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:55:15,902 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:55:15,984 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:55:15,993 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;@7124d967, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:55:15,993 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:55:15,998 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:55:16,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-22 01:55:16,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:16,015 INFO L195 NwaCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:16,015 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:16,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:16,045 INFO L85 PathProgramCache]: Analyzing trace with hash -251003801, now seen corresponding path program 1 times [2022-11-22 01:55:16,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-22 01:55:16,059 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491970129] [2022-11-22 01:55:16,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:16,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-22 01:55:16,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:55:16,217 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-22 01:55:16,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-22 01:55:16,284 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-22 01:55:16,287 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-22 01:55:16,289 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-22 01:55:16,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-22 01:55:16,298 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-22 01:55:16,304 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-22 01:55:16,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:55:16 BoogieIcfgContainer [2022-11-22 01:55:16,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-22 01:55:16,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-22 01:55:16,376 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-22 01:55:16,376 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-22 01:55:16,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:15" (3/4) ... [2022-11-22 01:55:16,380 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-22 01:55:16,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-22 01:55:16,381 INFO L158 Benchmark]: Toolchain (without parser) took 1323.38ms. Allocated memory is still 186.6MB. Free memory was 144.7MB in the beginning and 157.9MB in the end (delta: -13.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:55:16,382 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 130.0MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:55:16,390 INFO L158 Benchmark]: CACSL2BoogieTranslator took 308.87ms. Allocated memory is still 186.6MB. Free memory was 144.2MB in the beginning and 133.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:55:16,392 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.95ms. Allocated memory is still 186.6MB. Free memory was 133.7MB in the beginning and 132.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-22 01:55:16,393 INFO L158 Benchmark]: Boogie Preprocessor took 33.74ms. Allocated memory is still 186.6MB. Free memory was 132.1MB in the beginning and 131.1MB in the end (delta: 975.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:55:16,397 INFO L158 Benchmark]: RCFGBuilder took 414.15ms. Allocated memory is still 186.6MB. Free memory was 131.1MB in the beginning and 120.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-22 01:55:16,399 INFO L158 Benchmark]: TraceAbstraction took 492.55ms. Allocated memory is still 186.6MB. Free memory was 119.5MB in the beginning and 105.3MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-22 01:55:16,400 INFO L158 Benchmark]: Witness Printer took 5.00ms. Allocated memory is still 186.6MB. Free memory is still 157.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-22 01:55:16,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 130.0MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 308.87ms. Allocated memory is still 186.6MB. Free memory was 144.2MB in the beginning and 133.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.95ms. Allocated memory is still 186.6MB. Free memory was 133.7MB in the beginning and 132.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.74ms. Allocated memory is still 186.6MB. Free memory was 132.1MB in the beginning and 131.1MB in the end (delta: 975.8kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 414.15ms. Allocated memory is still 186.6MB. Free memory was 131.1MB in the beginning and 120.2MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 492.55ms. Allocated memory is still 186.6MB. Free memory was 119.5MB in the beginning and 105.3MB in the end (delta: 14.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Witness Printer took 5.00ms. Allocated memory is still 186.6MB. Free memory is still 157.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 17]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 44, overapproximation of to_real at line 30, overapproximation of someBinaryArithmeticDOUBLEoperation at line 42. Possible FailurePath: [L22] double E, E0, E1, S0, S1, S; [L23] int i; [L25] E = __VERIFIER_nondet_double() [L26] E0 = __VERIFIER_nondet_double() [L27] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) [L27] RET assume_abort_if_not(E >= 0. && E <= 1.) [L28] CALL assume_abort_if_not(E0 >= 0. && E0 <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) [L28] RET assume_abort_if_not(E0 >= 0. && E0 <= 1.) [L30] S0 = 0 [L31] S = 0 [L33] i = 0 VAL [i=0] [L33] COND TRUE i <= 1000000 [L34] E1 = E0 [L35] E0 = E [L37] E = __VERIFIER_nondet_double() [L38] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) [L38] RET assume_abort_if_not(E >= 0. && E <= 1.) VAL [E=54, E=55, E=56, i=0] [L40] S1 = S0 [L41] S0 = S [L42] S = 0.7*E - E0*1.3 + E1*1.1 + S0*1.4 - S1*0.7 [L44] CALL __VERIFIER_assert(S >= -4. && S <= 4.) [L17] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L17] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 14 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-22 01:55:16,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e42e84729022b725ebcfce66d0ece68757a1a9b385230356b4d45a24fc6b4ef2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-22 01:55:19,191 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-22 01:55:19,194 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-22 01:55:19,255 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-22 01:55:19,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-22 01:55:19,260 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-22 01:55:19,263 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-22 01:55:19,268 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-22 01:55:19,270 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-22 01:55:19,276 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-22 01:55:19,277 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-22 01:55:19,279 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-22 01:55:19,279 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-22 01:55:19,280 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-22 01:55:19,281 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-22 01:55:19,283 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-22 01:55:19,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-22 01:55:19,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-22 01:55:19,291 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-22 01:55:19,299 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-22 01:55:19,305 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-22 01:55:19,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-22 01:55:19,308 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-22 01:55:19,309 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-22 01:55:19,312 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-22 01:55:19,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-22 01:55:19,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-22 01:55:19,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-22 01:55:19,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-22 01:55:19,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-22 01:55:19,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-22 01:55:19,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-22 01:55:19,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-22 01:55:19,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-22 01:55:19,324 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-22 01:55:19,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-22 01:55:19,325 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-22 01:55:19,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-22 01:55:19,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-22 01:55:19,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-22 01:55:19,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-22 01:55:19,333 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2022-11-22 01:55:19,379 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-22 01:55:19,379 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-22 01:55:19,380 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-22 01:55:19,381 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-22 01:55:19,382 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-22 01:55:19,382 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-22 01:55:19,383 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-22 01:55:19,383 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-22 01:55:19,383 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-22 01:55:19,383 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-22 01:55:19,384 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-22 01:55:19,384 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-22 01:55:19,385 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-22 01:55:19,386 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-22 01:55:19,386 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-22 01:55:19,386 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-22 01:55:19,386 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-22 01:55:19,386 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-22 01:55:19,386 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-22 01:55:19,387 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-22 01:55:19,387 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-22 01:55:19,387 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-22 01:55:19,387 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-22 01:55:19,387 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-22 01:55:19,388 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-22 01:55:19,388 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-22 01:55:19,388 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-22 01:55:19,388 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-22 01:55:19,388 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-22 01:55:19,389 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:55:19,389 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-22 01:55:19,389 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-22 01:55:19,390 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-22 01:55:19,390 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-22 01:55:19,390 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-22 01:55:19,390 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-22 01:55:19,390 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-22 01:55:19,390 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-22 01:55:19,391 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_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e42e84729022b725ebcfce66d0ece68757a1a9b385230356b4d45a24fc6b4ef2 [2022-11-22 01:55:19,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-22 01:55:19,847 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-22 01:55:19,851 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-22 01:55:19,853 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-22 01:55:19,854 INFO L275 PluginConnector]: CDTParser initialized [2022-11-22 01:55:19,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/../../sv-benchmarks/c/float-benchs/filter2.c [2022-11-22 01:55:23,018 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-22 01:55:23,302 INFO L351 CDTParser]: Found 1 translation units. [2022-11-22 01:55:23,303 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/sv-benchmarks/c/float-benchs/filter2.c [2022-11-22 01:55:23,323 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/data/82cdae9ca/53a34fb3f8c44b7d98aa42ac2618d0b2/FLAG756e76d90 [2022-11-22 01:55:23,353 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/data/82cdae9ca/53a34fb3f8c44b7d98aa42ac2618d0b2 [2022-11-22 01:55:23,356 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-22 01:55:23,357 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-22 01:55:23,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-22 01:55:23,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-22 01:55:23,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-22 01:55:23,368 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f6c805a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23, skipping insertion in model container [2022-11-22 01:55:23,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,378 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-22 01:55:23,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-22 01:55:23,604 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_dbe54479-155e-4333-ae95-abfc5618009c/sv-benchmarks/c/float-benchs/filter2.c[652,665] [2022-11-22 01:55:23,631 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:55:23,651 INFO L203 MainTranslator]: Completed pre-run [2022-11-22 01:55:23,669 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_dbe54479-155e-4333-ae95-abfc5618009c/sv-benchmarks/c/float-benchs/filter2.c[652,665] [2022-11-22 01:55:23,690 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-22 01:55:23,712 INFO L208 MainTranslator]: Completed translation [2022-11-22 01:55:23,713 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23 WrapperNode [2022-11-22 01:55:23,713 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-22 01:55:23,715 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-22 01:55:23,715 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-22 01:55:23,715 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-22 01:55:23,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,751 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,781 INFO L138 Inliner]: procedures = 15, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 51 [2022-11-22 01:55:23,782 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-22 01:55:23,784 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-22 01:55:23,784 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-22 01:55:23,784 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-22 01:55:23,796 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,805 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,805 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,827 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,829 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,830 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-22 01:55:23,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-22 01:55:23,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-22 01:55:23,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-22 01:55:23,842 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (1/1) ... [2022-11-22 01:55:23,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-22 01:55:23,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/z3 [2022-11-22 01:55:23,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-22 01:55:23,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-22 01:55:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-22 01:55:24,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-22 01:55:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-22 01:55:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-22 01:55:24,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-22 01:55:24,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-22 01:55:24,105 INFO L235 CfgBuilder]: Building ICFG [2022-11-22 01:55:24,109 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-22 01:55:26,525 INFO L276 CfgBuilder]: Performing block encoding [2022-11-22 01:55:26,532 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-22 01:55:26,533 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-22 01:55:26,535 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:26 BoogieIcfgContainer [2022-11-22 01:55:26,536 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-22 01:55:26,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-22 01:55:26,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-22 01:55:26,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-22 01:55:26,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:55:23" (1/3) ... [2022-11-22 01:55:26,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e26c034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:55:26, skipping insertion in model container [2022-11-22 01:55:26,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:55:23" (2/3) ... [2022-11-22 01:55:26,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e26c034 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:55:26, skipping insertion in model container [2022-11-22 01:55:26,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:55:26" (3/3) ... [2022-11-22 01:55:26,546 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2.c [2022-11-22 01:55:26,568 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-22 01:55:26,568 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-22 01:55:26,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-22 01:55:26,628 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;@2e25d1d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-22 01:55:26,628 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-22 01:55:26,633 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:55:26,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 01:55:26,641 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:26,642 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:26,642 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:26,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:26,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1602622425, now seen corresponding path program 1 times [2022-11-22 01:55:26,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:55:26,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1905397590] [2022-11-22 01:55:26,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:26,679 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:55:26,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:55:26,705 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:55:26,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-22 01:55:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:28,440 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-22 01:55:28,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:55:28,467 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-22 01:55:28,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:55:28,468 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:55:28,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1905397590] [2022-11-22 01:55:28,469 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1905397590] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:55:28,470 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:55:28,470 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-22 01:55:28,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502253327] [2022-11-22 01:55:28,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:55:28,477 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-22 01:55:28,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:55:28,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-22 01:55:28,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:55:28,509 INFO L87 Difference]: Start difference. First operand has 21 states, 15 states have (on average 1.3333333333333333) internal successors, (20), 16 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:55:28,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:55:28,529 INFO L93 Difference]: Finished difference Result 39 states and 51 transitions. [2022-11-22 01:55:28,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-22 01:55:28,532 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2022-11-22 01:55:28,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:55:28,537 INFO L225 Difference]: With dead ends: 39 [2022-11-22 01:55:28,538 INFO L226 Difference]: Without dead ends: 17 [2022-11-22 01:55:28,542 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-22 01:55:28,550 INFO L413 NwaCegarLoop]: 23 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, 23 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 [2022-11-22 01:55:28,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-22 01:55:28,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-22 01:55:28,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-11-22 01:55:28,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:55:28,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-11-22 01:55:28,588 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 22 [2022-11-22 01:55:28,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:55:28,588 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-11-22 01:55:28,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-22 01:55:28,589 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-11-22 01:55:28,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-22 01:55:28,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:55:28,591 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:55:28,620 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2022-11-22 01:55:28,792 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:55:28,792 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:55:28,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:55:28,793 INFO L85 PathProgramCache]: Analyzing trace with hash 168652453, now seen corresponding path program 1 times [2022-11-22 01:55:28,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:55:28,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [737813968] [2022-11-22 01:55:28,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:55:28,795 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:55:28,795 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:55:28,796 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:55:28,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-22 01:55:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 01:55:39,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 20 conjunts are in the unsatisfiable core [2022-11-22 01:55:39,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 01:58:24,641 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 10.0))) (.cse9 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (let ((.cse3 (fp.neg .cse2)) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 13.0 10.0))) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0))) (.cse7 (fp.mul roundNearestTiesToEven .cse9 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 5.0)))) (.cse8 (fp.mul roundNearestTiesToEven .cse9 .cse4)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (and (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (let ((.cse1 (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse5)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse6)) .cse7) .cse8))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse0) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse0) (fp.leq .cse1 .cse2) (fp.geq .cse1 .cse3)))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (and (or (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse5)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse6)) .cse7) .cse8) .cse3)) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse0))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse0))) (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse0))) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse0) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse4 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse5)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse6)) .cse7) .cse8) .cse2)) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse0))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse0)))))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32)))))) is different from false [2022-11-22 01:58:56,296 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 10.0))) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 13.0 10.0))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0))) (.cse3 (fp.mul roundNearestTiesToEven .cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 5.0)))) (.cse4 (fp.mul roundNearestTiesToEven .cse7 .cse0)) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse1)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse2)) .cse3) .cse4) (fp.neg .cse5))) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse6))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse6))) (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse6))) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse6) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse1)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse2)) .cse3) .cse4) .cse5)) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse6))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse6)))))))) is different from false [2022-11-22 01:58:58,337 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 10.0))) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 13.0 10.0))) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 11.0 10.0))) (.cse3 (fp.mul roundNearestTiesToEven .cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 7.0 5.0)))) (.cse4 (fp.mul roundNearestTiesToEven .cse7 .cse0)) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (or (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse1)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse2)) .cse3) .cse4) (fp.neg .cse5))) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse6))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse6))) (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse6))) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse6) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.leq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| .cse1)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| .cse2)) .cse3) .cse4) .cse5)) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse6))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse6)))))))) is different from true [2022-11-22 01:58:58,338 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-22 01:58:58,338 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-22 01:58:58,338 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-22 01:58:58,338 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [737813968] [2022-11-22 01:58:58,339 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [737813968] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-22 01:58:58,339 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-22 01:58:58,339 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-22 01:58:58,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435764268] [2022-11-22 01:58:58,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-22 01:58:58,340 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-22 01:58:58,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-22 01:58:58,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-22 01:58:58,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=60, Unknown=3, NotChecked=34, Total=132 [2022-11-22 01:58:58,341 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:59:01,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.68s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:03,875 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-22 01:59:03,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-22 01:59:03,899 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2022-11-22 01:59:03,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-22 01:59:03,900 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 22 [2022-11-22 01:59:03,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-22 01:59:03,901 INFO L225 Difference]: With dead ends: 27 [2022-11-22 01:59:03,901 INFO L226 Difference]: Without dead ends: 25 [2022-11-22 01:59:03,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 9 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=40, Invalid=75, Unknown=3, NotChecked=38, Total=156 [2022-11-22 01:59:03,904 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 6 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 31 IncrementalHoareTripleChecker+Unchecked, 5.4s IncrementalHoareTripleChecker+Time [2022-11-22 01:59:03,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 55 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 46 Invalid, 2 Unknown, 31 Unchecked, 5.4s Time] [2022-11-22 01:59:03,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2022-11-22 01:59:03,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2022-11-22 01:59:03,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 18 states have (on average 1.0555555555555556) internal successors, (19), 18 states have internal predecessors, (19), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-22 01:59:03,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 27 transitions. [2022-11-22 01:59:03,916 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 27 transitions. Word has length 22 [2022-11-22 01:59:03,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-22 01:59:03,917 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 27 transitions. [2022-11-22 01:59:03,917 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 8 states have internal predecessors, (10), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-22 01:59:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 27 transitions. [2022-11-22 01:59:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-11-22 01:59:03,920 INFO L187 NwaCegarLoop]: Found error trace [2022-11-22 01:59:03,920 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-22 01:59:03,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-22 01:59:04,142 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:04,143 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-22 01:59:04,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-22 01:59:04,144 INFO L85 PathProgramCache]: Analyzing trace with hash -262310387, now seen corresponding path program 1 times [2022-11-22 01:59:04,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-22 01:59:04,145 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [933382899] [2022-11-22 01:59:04,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-22 01:59:04,145 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-22 01:59:04,150 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat [2022-11-22 01:59:04,152 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-22 01:59:04,186 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dbe54479-155e-4333-ae95-abfc5618009c/bin/utaipan-g80aRyZoba/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-22 02:03:08,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-22 02:03:08,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 31 conjunts are in the unsatisfiable core [2022-11-22 02:03:08,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-22 02:03:27,195 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (= .cse0 |c_ULTIMATE.start_main_~S0~0#1|) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1) (= |c_ULTIMATE.start_main_~S~0#1| (let ((.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse2 |c_ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E0~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode .cse0 .cse2)))))) (fp.leq |c_ULTIMATE.start_main_~E~0#1| .cse1) (fp.leq |c_ULTIMATE.start_main_~E0~0#1| .cse1) (let ((.cse5 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (let ((.cse3 (fp.leq |c_ULTIMATE.start_main_~S~0#1| .cse5)) (.cse4 (fp.geq |c_ULTIMATE.start_main_~S~0#1| (fp.neg .cse5)))) (or (and (or (not .cse3) (not .cse4)) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (and .cse3 (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse4)))) (fp.geq |c_ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.geq |c_ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-11-22 02:03:42,430 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (= .cse0 |c_ULTIMATE.start_main_~S0~0#1|) (fp.leq |c_ULTIMATE.start_main_~S~0#1| .cse1) (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse2) (= |c_ULTIMATE.start_main_~S~0#1| (let ((.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 |c_ULTIMATE.start_main_~E~0#1|) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E0~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |ULTIMATE.start_main_~E1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode .cse0 .cse3)))))) (fp.leq |c_ULTIMATE.start_main_~E~0#1| .cse2) (fp.leq |c_ULTIMATE.start_main_~E0~0#1| .cse2) (fp.geq |c_ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.geq |c_ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.geq |c_ULTIMATE.start_main_~S~0#1| (fp.neg .cse1)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-11-22 02:04:23,916 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode 4.0))) (and (exists ((|v_ULTIMATE.start_main_~E1~0#1_5| (_ FloatingPoint 11 53))) (and (= (let ((.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~E0~0#1|) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E1~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E1~0#1_5| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~S0~0#1| ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode .cse1 .cse0))) |c_ULTIMATE.start_main_~S~0#1|) (fp.leq |v_ULTIMATE.start_main_~E1~0#1_5| .cse2) (fp.geq |v_ULTIMATE.start_main_~E1~0#1_5| (_ +zero 11 53)))) (= .cse1 |c_ULTIMATE.start_main_~S0~0#1|) (fp.leq |c_ULTIMATE.start_main_~S~0#1| .cse3) (fp.leq |c_ULTIMATE.start_main_~E1~0#1| .cse2) (fp.geq |c_ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |c_ULTIMATE.start_main_~E0~0#1| .cse2) (fp.geq |c_ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.geq |c_ULTIMATE.start_main_~S~0#1| (fp.neg .cse3)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2022-11-22 02:05:01,501 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~E1~0#1_5| (_ FloatingPoint 11 53))) (let ((.cse0 (let ((.cse4 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 |v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3|) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E1~0#1_5| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode .cse4 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode .cse4 .cse3)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.geq |v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| (_ +zero 11 53)) (fp.leq .cse0 .cse1) (fp.leq |v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3| .cse2) (fp.geq .cse0 (fp.neg .cse1)) (fp.leq |v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| .cse2) (fp.leq |v_ULTIMATE.start_main_~E1~0#1_5| .cse2) (fp.geq |v_ULTIMATE.start_main_~E1~0#1_5| (_ +zero 11 53)) (fp.geq |v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3| (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven)) is different from false [2022-11-22 02:06:06,827 WARN L233 SmtUtils]: Spent 14.70s on a formula simplification that was a NOOP. DAG size: 45 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-22 02:06:44,520 WARN L837 $PredicateComparison]: unable to prove that (and (exists ((|v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~E1~0#1_5| (_ FloatingPoint 11 53))) (let ((.cse0 (let ((.cse4 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse3 |v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3|) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0)))) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E1~0#1_5| ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0)))) (fp.mul c_currentRoundingMode .cse4 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0)))) (fp.mul c_currentRoundingMode .cse4 .cse3)))) (.cse1 ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode 1.0))) (and (fp.geq |v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| (_ +zero 11 53)) (fp.leq .cse0 .cse1) (fp.leq |v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3| .cse2) (fp.geq .cse0 (fp.neg .cse1)) (fp.leq |v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| .cse2) (fp.leq |v_ULTIMATE.start_main_~E1~0#1_5| .cse2) (fp.geq |v_ULTIMATE.start_main_~E1~0#1_5| (_ +zero 11 53)) (fp.geq |v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3| (_ +zero 11 53))))) (= c_currentRoundingMode roundNearestTiesToEven) (not (= |c_assume_abort_if_not_#in~cond| (_ bv0 32)))) is different from false [2022-11-22 02:08:11,277 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 11 53) c_currentRoundingMode 4.0)) (.cse6 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))) (.cse0 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 10.0)))) (let ((.cse1 ((_ to_fp 11 53) c_currentRoundingMode (/ 13.0 10.0))) (.cse2 ((_ to_fp 11 53) c_currentRoundingMode (/ 11.0 10.0))) (.cse3 ((_ to_fp 11 53) c_currentRoundingMode (/ 7.0 5.0))) (.cse4 (fp.mul c_currentRoundingMode .cse6 .cse0)) (.cse5 ((_ to_fp 11 53) c_currentRoundingMode 1.0)) (.cse9 (fp.neg .cse7))) (and (exists ((|v_ULTIMATE.start_main_~E1~0#1_5| (_ FloatingPoint 11 53))) (and (= (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 |c_ULTIMATE.start_main_~E0~0#1|) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~E1~0#1| .cse1)) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E1~0#1_5| .cse2)) (fp.mul c_currentRoundingMode |c_ULTIMATE.start_main_~S0~0#1| .cse3)) .cse4) |c_ULTIMATE.start_main_~S~0#1|) (fp.leq |v_ULTIMATE.start_main_~E1~0#1_5| .cse5) (fp.geq |v_ULTIMATE.start_main_~E1~0#1_5| (_ +zero 11 53)))) (= .cse6 |c_ULTIMATE.start_main_~S0~0#1|) (fp.leq |c_ULTIMATE.start_main_~S~0#1| .cse7) (fp.leq |c_ULTIMATE.start_main_~E1~0#1| .cse5) (exists ((|v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~E1~0#1_6| (_ FloatingPoint 11 53)) (|v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3| (_ FloatingPoint 11 53))) (let ((.cse8 (fp.sub c_currentRoundingMode (fp.add c_currentRoundingMode (fp.add c_currentRoundingMode (fp.sub c_currentRoundingMode (fp.mul c_currentRoundingMode .cse0 |v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3|) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| .cse1)) (fp.mul c_currentRoundingMode |v_ULTIMATE.start_main_~E1~0#1_6| .cse2)) (fp.mul c_currentRoundingMode .cse6 .cse3)) .cse4))) (and (fp.geq |v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| (_ +zero 11 53)) (fp.leq |v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3| .cse5) (fp.leq |v_ULTIMATE.start_main_~E1~0#1_6| .cse5) (fp.leq |v_ULTIMATE.start_main_~E1~0#1_BEFORE_CALL_3| .cse5) (fp.geq |v_ULTIMATE.start_main_~E0~0#1_BEFORE_CALL_3| (_ +zero 11 53)) (fp.geq |v_ULTIMATE.start_main_~E1~0#1_6| (_ +zero 11 53)) (fp.leq .cse8 .cse7) (fp.geq .cse8 .cse9)))) (fp.geq |c_ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |c_ULTIMATE.start_main_~E~0#1| .cse5) (fp.leq |c_ULTIMATE.start_main_~E0~0#1| .cse5) (fp.geq |c_ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.geq |c_ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.geq |c_ULTIMATE.start_main_~S~0#1| .cse9) (= c_currentRoundingMode roundNearestTiesToEven)))) is different from false