./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/filter2_set.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_set.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:37:18,335 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:37:18,337 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:37:18,359 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:37:18,359 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:37:18,360 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:37:18,362 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:37:18,363 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:37:18,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:37:18,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:37:18,367 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:37:18,368 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:37:18,368 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:37:18,374 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:37:18,378 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:37:18,380 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:37:18,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:37:18,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:37:18,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:37:18,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:37:18,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:37:18,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:37:18,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:37:18,407 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:37:18,413 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:37:18,413 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:37:18,413 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:37:18,415 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:37:18,416 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:37:18,417 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:37:18,418 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:37:18,419 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:37:18,421 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:37:18,422 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:37:18,423 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:37:18,423 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:37:18,424 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:37:18,424 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:37:18,424 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:37:18,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:37:18,426 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:37:18,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:37:18,463 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:37:18,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:37:18,467 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:37:18,467 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:37:18,467 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:37:18,468 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:37:18,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:37:18,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:37:18,469 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:37:18,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:37:18,469 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:37:18,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:37:18,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:37:18,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:37:18,470 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:37:18,470 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:37:18,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:37:18,470 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:37:18,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:37:18,470 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:37:18,471 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:37:18,471 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:37:18,471 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:37:18,471 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:37:18,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:37:18,472 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:37:18,472 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:37:18,472 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:37:18,472 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:37:18,472 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:37:18,472 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:37:18,473 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:37:18,473 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:37:18,473 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_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 [2022-11-18 19:37:18,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:37:18,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:37:18,803 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:37:18,805 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:37:18,805 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:37:18,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/float-benchs/filter2_set.c [2022-11-18 19:37:18,880 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/data/2d436f2e9/6d6bb9214300453485337d62e0adb1cb/FLAG48a21becc [2022-11-18 19:37:19,416 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:37:19,417 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/sv-benchmarks/c/float-benchs/filter2_set.c [2022-11-18 19:37:19,424 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/data/2d436f2e9/6d6bb9214300453485337d62e0adb1cb/FLAG48a21becc [2022-11-18 19:37:19,802 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/data/2d436f2e9/6d6bb9214300453485337d62e0adb1cb [2022-11-18 19:37:19,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:37:19,807 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:37:19,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:37:19,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:37:19,814 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:37:19,815 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:19" (1/1) ... [2022-11-18 19:37:19,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@287e8a7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:19, skipping insertion in model container [2022-11-18 19:37:19,816 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:19" (1/1) ... [2022-11-18 19:37:19,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:37:19,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:37:20,036 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/sv-benchmarks/c/float-benchs/filter2_set.c[664,677] [2022-11-18 19:37:20,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:37:20,067 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:37:20,080 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/sv-benchmarks/c/float-benchs/filter2_set.c[664,677] [2022-11-18 19:37:20,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:37:20,101 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:37:20,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20 WrapperNode [2022-11-18 19:37:20,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:37:20,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:37:20,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:37:20,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:37:20,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,135 INFO L138 Inliner]: procedures = 14, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 70 [2022-11-18 19:37:20,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:37:20,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:37:20,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:37:20,136 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:37:20,143 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,144 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,145 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,154 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,155 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,159 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:37:20,159 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:37:20,160 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:37:20,160 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:37:20,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (1/1) ... [2022-11-18 19:37:20,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:37:20,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:20,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:20,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:37:20,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:37:20,239 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 19:37:20,239 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 19:37:20,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:37:20,240 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:37:20,240 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:37:20,306 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:37:20,310 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:37:20,454 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:37:20,477 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:37:20,477 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:37:20,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:20 BoogieIcfgContainer [2022-11-18 19:37:20,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:37:20,483 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:37:20,491 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:37:20,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:37:20,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:37:19" (1/3) ... [2022-11-18 19:37:20,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffdb49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:20, skipping insertion in model container [2022-11-18 19:37:20,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:20" (2/3) ... [2022-11-18 19:37:20,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ffdb49f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:20, skipping insertion in model container [2022-11-18 19:37:20,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:20" (3/3) ... [2022-11-18 19:37:20,504 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2_set.c [2022-11-18 19:37:20,525 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:37:20,525 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:37:20,612 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:37:20,622 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4825ca69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:37:20,622 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:37:20,626 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 19:37:20,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-18 19:37:20,637 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:20,637 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:20,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:37:20,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:20,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1697849372, now seen corresponding path program 1 times [2022-11-18 19:37:20,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:20,652 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720698838] [2022-11-18 19:37:20,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:20,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 19:37:20,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-11-18 19:37:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-11-18 19:37:20,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-11-18 19:37:20,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:37:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-18 19:37:20,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2022-11-18 19:37:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-11-18 19:37:20,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:20,955 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-18 19:37:20,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:37:20,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720698838] [2022-11-18 19:37:20,959 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720698838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:20,959 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:20,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:37:20,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854378689] [2022-11-18 19:37:20,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:20,974 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:37:20,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:37:21,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:37:21,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:37:21,029 INFO L87 Difference]: Start difference. First operand has 27 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 19:37:21,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:21,063 INFO L93 Difference]: Finished difference Result 51 states and 78 transitions. [2022-11-18 19:37:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:37:21,066 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2022-11-18 19:37:21,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:21,083 INFO L225 Difference]: With dead ends: 51 [2022-11-18 19:37:21,092 INFO L226 Difference]: Without dead ends: 23 [2022-11-18 19:37:21,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:37:21,101 INFO L413 NwaCegarLoop]: 34 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, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:21,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:37:21,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-18 19:37:21,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-18 19:37:21,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 19:37:21,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-11-18 19:37:21,158 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 48 [2022-11-18 19:37:21,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:21,159 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-18 19:37:21,160 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 19:37:21,161 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-11-18 19:37:21,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-18 19:37:21,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:21,167 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:21,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:37:21,168 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:37:21,169 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:21,170 INFO L85 PathProgramCache]: Analyzing trace with hash -1417424168, now seen corresponding path program 1 times [2022-11-18 19:37:21,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:37:21,171 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747310508] [2022-11-18 19:37:21,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:21,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:37:21,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:21,281 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:37:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:37:21,368 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:37:21,369 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:37:21,371 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 19:37:21,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:37:21,378 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 19:37:21,382 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:37:21,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:37:21 BoogieIcfgContainer [2022-11-18 19:37:21,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:37:21,429 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:37:21,429 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:37:21,429 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:37:21,429 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:20" (3/4) ... [2022-11-18 19:37:21,436 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:37:21,436 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:37:21,438 INFO L158 Benchmark]: Toolchain (without parser) took 1630.18ms. Allocated memory is still 127.9MB. Free memory was 89.0MB in the beginning and 53.7MB in the end (delta: 35.3MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2022-11-18 19:37:21,442 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:37:21,445 INFO L158 Benchmark]: CACSL2BoogieTranslator took 293.30ms. Allocated memory is still 127.9MB. Free memory was 88.6MB in the beginning and 101.5MB in the end (delta: -12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 19:37:21,448 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.37ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 99.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:37:21,449 INFO L158 Benchmark]: Boogie Preprocessor took 22.74ms. Allocated memory is still 127.9MB. Free memory was 99.8MB in the beginning and 98.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:37:21,449 INFO L158 Benchmark]: RCFGBuilder took 320.36ms. Allocated memory is still 127.9MB. Free memory was 98.4MB in the beginning and 87.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:37:21,450 INFO L158 Benchmark]: TraceAbstraction took 945.47ms. Allocated memory is still 127.9MB. Free memory was 86.8MB in the beginning and 54.0MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-18 19:37:21,450 INFO L158 Benchmark]: Witness Printer took 8.06ms. Allocated memory is still 127.9MB. Free memory was 53.9MB in the beginning and 53.7MB in the end (delta: 181.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:37:21,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 105.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 293.30ms. Allocated memory is still 127.9MB. Free memory was 88.6MB in the beginning and 101.5MB in the end (delta: -12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.37ms. Allocated memory is still 127.9MB. Free memory was 101.3MB in the beginning and 99.8MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 22.74ms. Allocated memory is still 127.9MB. Free memory was 99.8MB in the beginning and 98.6MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 320.36ms. Allocated memory is still 127.9MB. Free memory was 98.4MB in the beginning and 87.5MB in the end (delta: 10.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 945.47ms. Allocated memory is still 127.9MB. Free memory was 86.8MB in the beginning and 54.0MB in the end (delta: 32.8MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 8.06ms. Allocated memory is still 127.9MB. Free memory was 53.9MB in the beginning and 53.7MB in the end (delta: 181.8kB). 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 57, overapproximation of to_real at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 55. Possible FailurePath: [L22] double E, E0, E1, S0, S1, S; [L23] double A1, A2, A3, B1, B2; [L24] int i; [L26] A1 = __VERIFIER_nondet_double() [L27] A2 = __VERIFIER_nondet_double() [L28] A3 = __VERIFIER_nondet_double() [L29] B1 = __VERIFIER_nondet_double() [L30] B2 = __VERIFIER_nondet_double() [L31] CALL assume_abort_if_not(A1 >= 0.69 && A1 <= 0.71) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L31] RET assume_abort_if_not(A1 >= 0.69 && A1 <= 0.71) [L32] CALL assume_abort_if_not(A2 >= -1.31 && A2 <= -1.29) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L32] RET assume_abort_if_not(A2 >= -1.31 && A2 <= -1.29) [L33] CALL assume_abort_if_not(A3 >= 1.09 && A3 <= 1.11) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L33] RET assume_abort_if_not(A3 >= 1.09 && A3 <= 1.11) [L34] CALL assume_abort_if_not(B1 >= 1.39 && B1 <= 1.41) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L34] RET assume_abort_if_not(B1 >= 1.39 && B1 <= 1.41) [L35] CALL assume_abort_if_not(B2 >= -0.71 && B2 <= -0.69) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L35] RET assume_abort_if_not(B2 >= -0.71 && B2 <= -0.69) [L38] E = __VERIFIER_nondet_double() [L39] E0 = __VERIFIER_nondet_double() [L40] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L40] RET assume_abort_if_not(E >= 0. && E <= 1.) VAL [E=55, E=56] [L41] CALL assume_abort_if_not(E0 >= 0. && E0 <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L41] RET assume_abort_if_not(E0 >= 0. && E0 <= 1.) VAL [E=55, E=56] [L43] S0 = 0 [L44] S = 0 [L46] i = 0 VAL [E=55, E=56, i=0] [L46] COND TRUE i <= 1000000 [L47] E1 = E0 [L48] E0 = E [L50] E = __VERIFIER_nondet_double() [L51] CALL assume_abort_if_not(E >= 0. && E <= 1.) VAL [\old(cond)=1] [L15] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L51] RET assume_abort_if_not(E >= 0. && E <= 1.) VAL [E=53, E=55, E=56, i=0] [L53] S1 = S0 [L54] S0 = S [L55] S = A1*E - E0*A2 + E1*A3 + S0*B1 + S1*B2 [L57] CALL __VERIFIER_assert(S >= -100. && S <= 100.) [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, 27 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 34 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 34 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 47 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 112/112 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 19:37:21,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/filter2_set.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:37:24,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:37:24,003 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:37:24,039 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:37:24,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:37:24,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:37:24,045 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:37:24,052 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:37:24,056 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:37:24,058 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:37:24,060 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:37:24,062 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:37:24,065 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:37:24,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:37:24,071 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:37:24,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:37:24,075 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:37:24,083 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:37:24,086 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:37:24,088 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:37:24,095 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:37:24,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:37:24,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:37:24,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:37:24,108 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:37:24,113 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:37:24,114 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:37:24,115 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:37:24,116 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:37:24,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:37:24,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:37:24,121 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:37:24,123 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:37:24,125 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:37:24,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:37:24,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:37:24,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:37:24,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:37:24,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:37:24,134 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:37:24,136 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:37:24,137 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2022-11-18 19:37:24,193 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:37:24,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:37:24,195 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:37:24,196 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:37:24,197 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:37:24,198 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:37:24,200 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:37:24,200 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:37:24,200 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:37:24,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:37:24,202 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:37:24,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:37:24,203 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:37:24,203 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:37:24,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:37:24,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:37:24,204 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:37:24,204 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 19:37:24,204 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 19:37:24,204 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:37:24,205 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:37:24,205 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:37:24,205 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:37:24,205 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:37:24,206 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:37:24,206 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:37:24,206 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:37:24,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:37:24,207 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:37:24,207 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:37:24,207 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 19:37:24,208 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 19:37:24,208 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:37:24,208 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:37:24,209 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:37:24,209 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 19:37:24,209 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_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1052e6ec9925823ba5a2ccaaebf89a3336e5de0f5b82a0218158837daebc1dd1 [2022-11-18 19:37:24,631 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:37:24,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:37:24,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:37:24,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:37:24,667 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:37:24,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/float-benchs/filter2_set.c [2022-11-18 19:37:24,755 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/data/7b921d294/547b57a3aebd4a88a6b75d1386eadd13/FLAG4bc8b6c56 [2022-11-18 19:37:25,329 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:37:25,330 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/sv-benchmarks/c/float-benchs/filter2_set.c [2022-11-18 19:37:25,338 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/data/7b921d294/547b57a3aebd4a88a6b75d1386eadd13/FLAG4bc8b6c56 [2022-11-18 19:37:25,682 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/data/7b921d294/547b57a3aebd4a88a6b75d1386eadd13 [2022-11-18 19:37:25,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:37:25,687 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:37:25,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:37:25,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:37:25,694 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:37:25,695 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:25,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef1c7e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25, skipping insertion in model container [2022-11-18 19:37:25,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:25,706 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:37:25,720 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:37:25,850 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/sv-benchmarks/c/float-benchs/filter2_set.c[664,677] [2022-11-18 19:37:25,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:37:25,898 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:37:25,940 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/sv-benchmarks/c/float-benchs/filter2_set.c[664,677] [2022-11-18 19:37:25,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:37:25,979 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:37:25,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25 WrapperNode [2022-11-18 19:37:25,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:37:25,981 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:37:25,981 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:37:25,982 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:37:25,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:26,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:26,040 INFO L138 Inliner]: procedures = 15, calls = 16, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 71 [2022-11-18 19:37:26,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:37:26,041 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:37:26,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:37:26,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:37:26,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:26,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:26,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:26,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:26,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:26,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:26,082 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:26,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:26,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:37:26,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:37:26,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:37:26,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:37:26,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (1/1) ... [2022-11-18 19:37:26,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:37:26,107 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:37:26,123 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:37:26,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:37:26,177 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:37:26,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-18 19:37:26,177 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-18 19:37:26,178 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-18 19:37:26,178 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:37:26,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:37:26,276 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:37:26,278 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:37:28,799 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:37:28,807 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:37:28,808 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:37:28,810 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:28 BoogieIcfgContainer [2022-11-18 19:37:28,810 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:37:28,813 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:37:28,813 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:37:28,817 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:37:28,818 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:37:25" (1/3) ... [2022-11-18 19:37:28,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c805a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:28, skipping insertion in model container [2022-11-18 19:37:28,819 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:37:25" (2/3) ... [2022-11-18 19:37:28,819 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c805a3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:37:28, skipping insertion in model container [2022-11-18 19:37:28,820 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:37:28" (3/3) ... [2022-11-18 19:37:28,821 INFO L112 eAbstractionObserver]: Analyzing ICFG filter2_set.c [2022-11-18 19:37:28,857 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:37:28,857 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:37:28,982 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:37:29,001 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43932b0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:37:29,001 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:37:29,009 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 19:37:29,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-18 19:37:29,021 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:29,022 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:29,023 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:37:29,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:29,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1697849372, now seen corresponding path program 1 times [2022-11-18 19:37:29,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:37:29,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1507083343] [2022-11-18 19:37:29,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:29,057 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:37:29,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:37:29,070 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:37:29,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 19:37:30,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:30,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-18 19:37:30,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:37:30,849 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2022-11-18 19:37:30,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:37:30,850 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:37:30,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1507083343] [2022-11-18 19:37:30,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1507083343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:37:30,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:37:30,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:37:30,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378801085] [2022-11-18 19:37:30,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:37:30,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:37:30,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:37:30,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:37:30,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:37:30,889 INFO L87 Difference]: Start difference. First operand has 27 states, 16 states have (on average 1.3125) internal successors, (21), 17 states have internal predecessors, (21), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 19:37:30,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:37:30,913 INFO L93 Difference]: Finished difference Result 51 states and 78 transitions. [2022-11-18 19:37:30,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:37:30,915 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 48 [2022-11-18 19:37:30,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:37:30,922 INFO L225 Difference]: With dead ends: 51 [2022-11-18 19:37:30,923 INFO L226 Difference]: Without dead ends: 23 [2022-11-18 19:37:30,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:37:30,929 INFO L413 NwaCegarLoop]: 34 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, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:37:30,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:37:30,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-18 19:37:30,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-18 19:37:30,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 19:37:30,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 30 transitions. [2022-11-18 19:37:30,969 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 30 transitions. Word has length 48 [2022-11-18 19:37:30,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:37:30,969 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 30 transitions. [2022-11-18 19:37:30,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-18 19:37:30,970 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 30 transitions. [2022-11-18 19:37:30,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-18 19:37:30,972 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:37:30,972 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:37:31,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:37:31,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:37:31,177 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:37:31,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:37:31,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1417424168, now seen corresponding path program 1 times [2022-11-18 19:37:31,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:37:31,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853728321] [2022-11-18 19:37:31,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:37:31,180 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:37:31,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:37:31,190 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:37:31,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 19:37:39,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:37:39,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-18 19:37:39,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:48:25,259 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse13 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (/ 69.0 100.0))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 71.0 100.0)))) (let ((.cse3 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 129.0 100.0)))) (.cse8 (fp.neg .cse5)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 139.0 100.0))) (.cse4 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 131.0 100.0)))) (.cse9 (fp.neg .cse10)) (.cse11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 141.0 100.0))) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 109.0 100.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse7 (fp.neg .cse13)) (.cse12 ((_ to_fp 11 53) roundNearestTiesToEven (/ 111.0 100.0))) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))) (or (and (or (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~A3~0#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| .cse1) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse2) (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse4) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse5) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~B2~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B2~0#1|)) .cse7)) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse8) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse9))) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse10))))) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse11))))) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12))) (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse4) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse5) (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_~B2~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse8) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse9) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1) (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B2~0#1|)) .cse13)))))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse10))))) (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse2) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse11))) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A3~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12)))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (and (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~B2~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53)) (|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (let ((.cse14 (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B2~0#1|)))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse5) (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse8) (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse2) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse4) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse9) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse10) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse11) (fp.geq |ULTIMATE.start_main_~A3~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1) (fp.geq .cse14 .cse7) (fp.leq .cse14 .cse13) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12)))) (= |c_ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)))))) is different from false [2022-11-18 19:49:00,083 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (/ 69.0 100.0))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 71.0 100.0)))) (let ((.cse3 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 129.0 100.0)))) (.cse4 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 131.0 100.0)))) (.cse8 (fp.neg .cse5)) (.cse9 (fp.neg .cse10)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 139.0 100.0))) (.cse11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 141.0 100.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 109.0 100.0))) (.cse12 ((_ to_fp 11 53) roundNearestTiesToEven (/ 111.0 100.0)))) (or (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~A3~0#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| .cse1) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse2) (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse4) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse5) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~B2~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B2~0#1|)) (fp.neg .cse7))) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse8) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse9))) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse10))))) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse11))))) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12))) (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse4) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse5) (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_~B2~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse8) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse9) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1) (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B2~0#1|)) .cse7)))))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse10))))) (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse2) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse11))) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A3~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12)))))) is different from false [2022-11-18 19:49:02,177 WARN L859 $PredicateComparison]: unable to prove that (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (/ 69.0 100.0))) (.cse5 ((_ to_fp 11 53) roundNearestTiesToEven (/ 71.0 100.0)))) (let ((.cse3 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 129.0 100.0)))) (.cse4 (fp.neg ((_ to_fp 11 53) roundNearestTiesToEven (/ 131.0 100.0)))) (.cse8 (fp.neg .cse5)) (.cse9 (fp.neg .cse10)) (.cse6 ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))) (.cse7 ((_ to_fp 11 53) roundNearestTiesToEven 100.0)) (.cse2 ((_ to_fp 11 53) roundNearestTiesToEven (/ 139.0 100.0))) (.cse11 ((_ to_fp 11 53) roundNearestTiesToEven (/ 141.0 100.0))) (.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 1.0)) (.cse0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 109.0 100.0))) (.cse12 ((_ to_fp 11 53) roundNearestTiesToEven (/ 111.0 100.0)))) (or (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~A3~0#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| .cse1) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse2) (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse4) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse5) (exists ((|ULTIMATE.start_main_~E~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~B2~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (not (fp.geq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B2~0#1|)) (fp.neg .cse7))) (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse8) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse9))) (fp.geq |ULTIMATE.start_main_~E~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse10))))) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse11))))) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12))) (exists ((|ULTIMATE.start_main_~A3~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~E1~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E1~0#1| (_ +zero 11 53)) (exists ((|ULTIMATE.start_main_~B1~0#1| (_ FloatingPoint 11 53))) (and (exists ((|ULTIMATE.start_main_~A2~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A2~0#1| .cse3) (fp.geq |ULTIMATE.start_main_~A2~0#1| .cse4) (exists ((|ULTIMATE.start_main_~A1~0#1| (_ FloatingPoint 11 53))) (and (fp.leq |ULTIMATE.start_main_~A1~0#1| .cse5) (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_~B2~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~B2~0#1| .cse8) (fp.leq |ULTIMATE.start_main_~B2~0#1| .cse9) (exists ((|ULTIMATE.start_main_~E0~0#1| (_ FloatingPoint 11 53))) (and (fp.geq |ULTIMATE.start_main_~E0~0#1| (_ +zero 11 53)) (fp.leq |ULTIMATE.start_main_~E0~0#1| .cse1) (not (fp.leq (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~A1~0#1| |ULTIMATE.start_main_~E~0#1|) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E0~0#1| |ULTIMATE.start_main_~A2~0#1|)) (fp.mul roundNearestTiesToEven |ULTIMATE.start_main_~E1~0#1| |ULTIMATE.start_main_~A3~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B1~0#1|)) (fp.mul roundNearestTiesToEven .cse6 |ULTIMATE.start_main_~B2~0#1|)) .cse7)))))) (fp.leq |ULTIMATE.start_main_~E~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A1~0#1| .cse10))))) (fp.geq |ULTIMATE.start_main_~B1~0#1| .cse2) (fp.leq |ULTIMATE.start_main_~B1~0#1| .cse11))) (fp.leq |ULTIMATE.start_main_~E1~0#1| .cse1))) (fp.geq |ULTIMATE.start_main_~A3~0#1| .cse0) (fp.leq |ULTIMATE.start_main_~A3~0#1| .cse12)))))) is different from true [2022-11-18 19:49:02,179 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2022-11-18 19:49:02,179 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:49:02,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:49:02,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1853728321] [2022-11-18 19:49:02,180 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1853728321] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:49:02,180 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:49:02,181 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-11-18 19:49:02,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445210939] [2022-11-18 19:49:02,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:49:02,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-18 19:49:02,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:49:02,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-18 19:49:02,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=130, Unknown=3, NotChecked=54, Total=272 [2022-11-18 19:49:02,185 INFO L87 Difference]: Start difference. First operand 23 states and 30 transitions. Second operand has 17 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 19:49:07,297 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.72s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-11-18 19:49:07,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:49:07,301 INFO L93 Difference]: Finished difference Result 33 states and 40 transitions. [2022-11-18 19:49:07,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-18 19:49:07,516 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Word has length 48 [2022-11-18 19:49:07,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:49:07,517 INFO L225 Difference]: With dead ends: 33 [2022-11-18 19:49:07,517 INFO L226 Difference]: Without dead ends: 31 [2022-11-18 19:49:07,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 25 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 13.4s TimeCoverageRelationStatistics Valid=90, Invalid=155, Unknown=3, NotChecked=58, Total=306 [2022-11-18 19:49:07,522 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 12 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 45 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:49:07,522 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 58 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 109 Invalid, 1 Unknown, 45 Unchecked, 4.9s Time] [2022-11-18 19:49:07,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-18 19:49:07,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-18 19:49:07,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.0526315789473684) internal successors, (20), 19 states have internal predecessors, (20), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-18 19:49:07,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 38 transitions. [2022-11-18 19:49:07,544 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 38 transitions. Word has length 48 [2022-11-18 19:49:07,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:49:07,545 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 38 transitions. [2022-11-18 19:49:07,545 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 10 states have (on average 1.1) internal successors, (11), 9 states have internal predecessors, (11), 8 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 19:49:07,545 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 38 transitions. [2022-11-18 19:49:07,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-18 19:49:07,547 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:49:07,548 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:49:07,576 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 19:49:07,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:49:07,750 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:49:07,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:49:07,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1357191508, now seen corresponding path program 1 times [2022-11-18 19:49:07,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:49:07,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [393968099] [2022-11-18 19:49:07,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:49:07,752 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 19:49:07,752 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:49:07,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 19:49:07,758 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_def3af94-5a7d-43e2-b9e5-7f15f56c1d21/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process