./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --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 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:15:45,144 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:15:45,203 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 12:15:45,208 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:15:45,209 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:15:45,230 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:15:45,230 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:15:45,231 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:15:45,231 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:15:45,231 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:15:45,231 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:15:45,231 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:15:45,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:15:45,232 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:15:45,232 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:15:45,232 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:15:45,232 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:15:45,232 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:15:45,232 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 12:15:45,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:15:45,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:15:45,232 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:15:45,232 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:15:45,232 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:15:45,233 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:15:45,233 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:15:45,233 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:15:45,233 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:15:45,233 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:15:45,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:15:45,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:15:45,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:15:45,233 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:15:45,233 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:15:45,233 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:15:45,233 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:15:45,233 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:15:45,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:15:45,234 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:15:45,234 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:15:45,234 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:15:45,234 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:15:45,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 12:15:45,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 12:15:45,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:15:45,234 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:15:45,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:15:45,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:15:45,234 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 [2024-12-02 12:15:45,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:15:45,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:15:45,490 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:15:45,492 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:15:45,492 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:15:45,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2024-12-02 12:15:48,186 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/data/c81d8b3d8/77275824d7274d2abf753323ddd4b107/FLAGeb1b3d1a4 [2024-12-02 12:15:48,390 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:15:48,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2024-12-02 12:15:48,403 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/data/c81d8b3d8/77275824d7274d2abf753323ddd4b107/FLAGeb1b3d1a4 [2024-12-02 12:15:48,419 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/data/c81d8b3d8/77275824d7274d2abf753323ddd4b107 [2024-12-02 12:15:48,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:15:48,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:15:48,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:15:48,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:15:48,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:15:48,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:15:48" (1/1) ... [2024-12-02 12:15:48,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c890d74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:48, skipping insertion in model container [2024-12-02 12:15:48,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:15:48" (1/1) ... [2024-12-02 12:15:48,453 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:15:48,593 ERROR L321 MainTranslator]: Unsupported Syntax: floats in unions are not supported in the integer translation. [2024-12-02 12:15:48,593 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@bd43f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:48, skipping insertion in model container [2024-12-02 12:15:48,593 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:15:48,594 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-12-02 12:15:48,595 INFO L158 Benchmark]: Toolchain (without parser) took 171.84ms. Allocated memory is still 142.6MB. Free memory was 118.3MB in the beginning and 109.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:15:48,596 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:15:48,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 168.90ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 109.5MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:15:48,598 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 142.6MB. Free memory is still 82.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 168.90ms. Allocated memory is still 142.6MB. Free memory was 118.1MB in the beginning and 109.5MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 9]: Unsupported Syntax floats in unions are not supported in the integer translation. RESULT: Ultimate could not prove your program: Toolchain returned no result. 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --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 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 12:15:50,431 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 12:15:50,512 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 12:15:50,519 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 12:15:50,519 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 12:15:50,541 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 12:15:50,541 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 12:15:50,542 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 12:15:50,542 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 12:15:50,542 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 12:15:50,542 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 12:15:50,542 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 12:15:50,542 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 12:15:50,543 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 12:15:50,543 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 12:15:50,543 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 12:15:50,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 12:15:50,543 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 12:15:50,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 12:15:50,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 12:15:50,543 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 12:15:50,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 12:15:50,544 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 12:15:50,544 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 12:15:50,544 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 12:15:50,544 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 12:15:50,544 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 12:15:50,544 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 12:15:50,544 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 12:15:50,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 12:15:50,544 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 12:15:50,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:15:50,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:15:50,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:15:50,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:15:50,545 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 12:15:50,545 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 12:15:50,545 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 12:15:50,545 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 12:15:50,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:15:50,546 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 12:15:50,546 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 12:15:50,546 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 12:15:50,546 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 12:15:50,546 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 12:15:50,546 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 12:15:50,546 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 12:15:50,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 12:15:50,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 12:15:50,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 12:15:50,546 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 1c3190f495eae54e4d617ff48fc187597eb553c8ed8ec63a4d85f293d62b08d2 [2024-12-02 12:15:50,773 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 12:15:50,779 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 12:15:50,782 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 12:15:50,783 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 12:15:50,783 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 12:15:50,784 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2024-12-02 12:15:53,470 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/data/dabb5b0cc/10ce25c14b0c4860b50653da89e6af19/FLAG6730f15be [2024-12-02 12:15:53,666 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 12:15:53,666 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c [2024-12-02 12:15:53,674 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/data/dabb5b0cc/10ce25c14b0c4860b50653da89e6af19/FLAG6730f15be [2024-12-02 12:15:53,686 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/data/dabb5b0cc/10ce25c14b0c4860b50653da89e6af19 [2024-12-02 12:15:53,688 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 12:15:53,689 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 12:15:53,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 12:15:53,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 12:15:53,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 12:15:53,694 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:53,695 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b95cf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53, skipping insertion in model container [2024-12-02 12:15:53,695 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:53,711 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 12:15:53,886 WARN L250 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_2c792fa2-4463-4977-904d-2e26c4d9ea4d/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c[5286,5299] [2024-12-02 12:15:53,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:15:53,906 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 12:15:53,954 WARN L250 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_2c792fa2-4463-4977-904d-2e26c4d9ea4d/sv-benchmarks/c/float-newlib/float_req_bl_0660a.c[5286,5299] [2024-12-02 12:15:53,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 12:15:53,977 INFO L204 MainTranslator]: Completed translation [2024-12-02 12:15:53,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53 WrapperNode [2024-12-02 12:15:53,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 12:15:53,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 12:15:53,979 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 12:15:53,979 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 12:15:53,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:53,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,021 INFO L138 Inliner]: procedures = 23, calls = 79, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 216 [2024-12-02 12:15:54,021 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 12:15:54,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 12:15:54,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 12:15:54,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 12:15:54,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,036 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,056 INFO L175 MemorySlicer]: Split 53 memory accesses to 11 slices as follows [2, 7, 2, 7, 2, 23, 2, 2, 2, 2, 2]. 43 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 4, 0, 4, 0, 0, 0, 0, 0, 0, 0]. The 19 writes are split as follows [0, 0, 1, 0, 1, 12, 1, 1, 1, 1, 1]. [2024-12-02 12:15:54,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,074 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,075 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,084 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,086 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 12:15:54,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 12:15:54,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 12:15:54,092 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 12:15:54,093 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (1/1) ... [2024-12-02 12:15:54,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 12:15:54,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 12:15:54,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 12:15:54,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 12:15:54,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#6 [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#7 [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#8 [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#9 [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#10 [2024-12-02 12:15:54,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#9 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#10 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-12-02 12:15:54,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#6 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#7 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#8 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#9 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#10 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2024-12-02 12:15:54,153 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-12-02 12:15:54,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#9 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#10 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#0 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#1 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#2 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#3 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#4 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#5 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#6 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#7 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#8 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#9 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE4#10 [2024-12-02 12:15:54,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 12:15:54,155 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#6 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#7 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#8 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#9 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#10 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2024-12-02 12:15:54,155 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-12-02 12:15:54,155 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-12-02 12:15:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-12-02 12:15:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-12-02 12:15:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-12-02 12:15:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2024-12-02 12:15:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2024-12-02 12:15:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2024-12-02 12:15:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#9 [2024-12-02 12:15:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#10 [2024-12-02 12:15:54,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-12-02 12:15:54,321 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 12:15:54,324 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 12:16:18,441 INFO L? ?]: Removed 77 outVars from TransFormulas that were not future-live. [2024-12-02 12:16:18,441 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 12:16:18,452 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 12:16:18,452 INFO L312 CfgBuilder]: Removed 7 assume(true) statements. [2024-12-02 12:16:18,452 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:16:18 BoogieIcfgContainer [2024-12-02 12:16:18,452 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 12:16:18,455 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 12:16:18,455 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 12:16:18,458 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 12:16:18,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 12:15:53" (1/3) ... [2024-12-02 12:16:18,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6372ffc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:16:18, skipping insertion in model container [2024-12-02 12:16:18,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 12:15:53" (2/3) ... [2024-12-02 12:16:18,459 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6372ffc6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 12:16:18, skipping insertion in model container [2024-12-02 12:16:18,459 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:16:18" (3/3) ... [2024-12-02 12:16:18,460 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_0660a.c [2024-12-02 12:16:18,470 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 12:16:18,471 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_0660a.c that has 3 procedures, 86 locations, 1 initial locations, 7 loop locations, and 1 error locations. [2024-12-02 12:16:18,506 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 12:16:18,516 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@4283f6bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 12:16:18,516 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 12:16:18,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 86 states, 78 states have (on average 1.6666666666666667) internal successors, (130), 79 states have internal predecessors, (130), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 12:16:18,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-12-02 12:16:18,523 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:16:18,524 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:16:18,524 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:16:18,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:16:18,528 INFO L85 PathProgramCache]: Analyzing trace with hash 1864806797, now seen corresponding path program 1 times [2024-12-02 12:16:18,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:16:18,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2025473514] [2024-12-02 12:16:18,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:18,537 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 [2024-12-02 12:16:18,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:16:18,540 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 12:16:18,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:16:19,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:19,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 12:16:19,473 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:16:19,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:19,487 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:16:19,487 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:16:19,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2025473514] [2024-12-02 12:16:19,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2025473514] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:16:19,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:16:19,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 12:16:19,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724164934] [2024-12-02 12:16:19,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:16:19,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 12:16:19,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:16:19,507 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 12:16:19,507 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:16:19,509 INFO L87 Difference]: Start difference. First operand has 86 states, 78 states have (on average 1.6666666666666667) internal successors, (130), 79 states have internal predecessors, (130), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:16:19,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:16:19,535 INFO L93 Difference]: Finished difference Result 169 states and 276 transitions. [2024-12-02 12:16:19,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 12:16:19,537 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-12-02 12:16:19,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:16:19,544 INFO L225 Difference]: With dead ends: 169 [2024-12-02 12:16:19,544 INFO L226 Difference]: Without dead ends: 82 [2024-12-02 12:16:19,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 12:16:19,551 INFO L435 NwaCegarLoop]: 123 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, 123 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 [2024-12-02 12:16:19,551 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 12:16:19,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2024-12-02 12:16:19,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2024-12-02 12:16:19,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 75 states have (on average 1.4666666666666666) internal successors, (110), 75 states have internal predecessors, (110), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-12-02 12:16:19,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 118 transitions. [2024-12-02 12:16:19,593 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 118 transitions. Word has length 11 [2024-12-02 12:16:19,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:16:19,593 INFO L471 AbstractCegarLoop]: Abstraction has 82 states and 118 transitions. [2024-12-02 12:16:19,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:16:19,594 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 118 transitions. [2024-12-02 12:16:19,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-12-02 12:16:19,594 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:16:19,594 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:16:19,615 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 12:16:19,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:16:19,795 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:16:19,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:16:19,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1315494249, now seen corresponding path program 1 times [2024-12-02 12:16:19,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:16:19,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2080891518] [2024-12-02 12:16:19,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:19,798 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 [2024-12-02 12:16:19,798 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:16:19,801 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 12:16:19,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:16:20,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:20,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-12-02 12:16:20,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:16:20,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:16:20,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 12:16:25,503 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:16:25,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 12:16:26,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:26,047 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:16:26,047 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:16:26,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2080891518] [2024-12-02 12:16:26,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2080891518] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:16:26,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:16:26,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 12:16:26,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972811332] [2024-12-02 12:16:26,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:16:26,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-02 12:16:26,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:16:26,049 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 12:16:26,049 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=42, Unknown=1, NotChecked=0, Total=56 [2024-12-02 12:16:26,050 INFO L87 Difference]: Start difference. First operand 82 states and 118 transitions. Second operand has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:16:27,118 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:16:33,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:16:38,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2024-12-02 12:16:38,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:16:38,298 INFO L93 Difference]: Finished difference Result 153 states and 217 transitions. [2024-12-02 12:16:38,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:16:38,299 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2024-12-02 12:16:38,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:16:38,301 INFO L225 Difference]: With dead ends: 153 [2024-12-02 12:16:38,301 INFO L226 Difference]: Without dead ends: 89 [2024-12-02 12:16:38,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=46, Invalid=109, Unknown=1, NotChecked=0, Total=156 [2024-12-02 12:16:38,303 INFO L435 NwaCegarLoop]: 85 mSDtfsCounter, 195 mSDsluCounter, 377 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 462 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.4s IncrementalHoareTripleChecker+Time [2024-12-02 12:16:38,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 462 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 2 Unknown, 0 Unchecked, 11.4s Time] [2024-12-02 12:16:38,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-12-02 12:16:38,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2024-12-02 12:16:38,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.3623188405797102) internal successors, (94), 69 states have internal predecessors, (94), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 12:16:38,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 100 transitions. [2024-12-02 12:16:38,313 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 100 transitions. Word has length 13 [2024-12-02 12:16:38,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:16:38,313 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 100 transitions. [2024-12-02 12:16:38,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.625) internal successors, (13), 8 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:16:38,314 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 100 transitions. [2024-12-02 12:16:38,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-12-02 12:16:38,314 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:16:38,314 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:16:38,333 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 12:16:38,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:16:38,515 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:16:38,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:16:38,515 INFO L85 PathProgramCache]: Analyzing trace with hash 378546928, now seen corresponding path program 1 times [2024-12-02 12:16:38,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:16:38,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1272471857] [2024-12-02 12:16:38,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:38,516 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 [2024-12-02 12:16:38,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:16:38,517 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 12:16:38,518 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:16:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:39,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 12:16:39,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:16:39,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:16:39,486 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 13 [2024-12-02 12:16:40,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:40,292 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:16:40,292 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:16:40,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1272471857] [2024-12-02 12:16:40,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1272471857] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:16:40,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:16:40,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:16:40,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456115180] [2024-12-02 12:16:40,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:16:40,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:16:40,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:16:40,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:16:40,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:16:40,294 INFO L87 Difference]: Start difference. First operand 75 states and 100 transitions. Second operand has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:16:41,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:16:41,322 INFO L93 Difference]: Finished difference Result 151 states and 204 transitions. [2024-12-02 12:16:41,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:16:41,323 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2024-12-02 12:16:41,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:16:41,324 INFO L225 Difference]: With dead ends: 151 [2024-12-02 12:16:41,324 INFO L226 Difference]: Without dead ends: 89 [2024-12-02 12:16:41,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-12-02 12:16:41,326 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 151 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:16:41,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 310 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:16:41,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-12-02 12:16:41,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 75. [2024-12-02 12:16:41,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.3333333333333333) internal successors, (92), 69 states have internal predecessors, (92), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 12:16:41,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 98 transitions. [2024-12-02 12:16:41,336 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 98 transitions. Word has length 18 [2024-12-02 12:16:41,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:16:41,336 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 98 transitions. [2024-12-02 12:16:41,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 7 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:16:41,337 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 98 transitions. [2024-12-02 12:16:41,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-12-02 12:16:41,337 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:16:41,337 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:16:41,354 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 12:16:41,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:16:41,538 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:16:41,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:16:41,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1152362867, now seen corresponding path program 1 times [2024-12-02 12:16:41,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:16:41,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2062672177] [2024-12-02 12:16:41,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:41,539 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 [2024-12-02 12:16:41,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:16:41,541 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 12:16:41,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 12:16:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:42,415 INFO L256 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 12:16:42,417 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:16:42,599 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-12-02 12:16:42,614 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2024-12-02 12:16:43,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:43,132 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:16:43,132 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:16:43,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2062672177] [2024-12-02 12:16:43,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2062672177] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:16:43,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:16:43,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 12:16:43,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410772950] [2024-12-02 12:16:43,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:16:43,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 12:16:43,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:16:43,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 12:16:43,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:16:43,134 INFO L87 Difference]: Start difference. First operand 75 states and 98 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:16:44,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:16:44,030 INFO L93 Difference]: Finished difference Result 80 states and 102 transitions. [2024-12-02 12:16:44,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 12:16:44,031 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-12-02 12:16:44,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:16:44,031 INFO L225 Difference]: With dead ends: 80 [2024-12-02 12:16:44,031 INFO L226 Difference]: Without dead ends: 76 [2024-12-02 12:16:44,032 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-12-02 12:16:44,032 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 124 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:16:44,033 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 380 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-02 12:16:44,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2024-12-02 12:16:44,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 75. [2024-12-02 12:16:44,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.318840579710145) internal successors, (91), 69 states have internal predecessors, (91), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 12:16:44,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 97 transitions. [2024-12-02 12:16:44,039 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 97 transitions. Word has length 19 [2024-12-02 12:16:44,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:16:44,039 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 97 transitions. [2024-12-02 12:16:44,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:16:44,039 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 97 transitions. [2024-12-02 12:16:44,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-12-02 12:16:44,040 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:16:44,040 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:16:44,060 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 12:16:44,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:16:44,240 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:16:44,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:16:44,241 INFO L85 PathProgramCache]: Analyzing trace with hash -1365777301, now seen corresponding path program 1 times [2024-12-02 12:16:44,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:16:44,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [151761690] [2024-12-02 12:16:44,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:16:44,241 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 [2024-12-02 12:16:44,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:16:44,243 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 12:16:44,244 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 12:16:45,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:16:45,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-12-02 12:16:45,132 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:16:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:16:46,479 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:16:46,479 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:16:46,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [151761690] [2024-12-02 12:16:46,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [151761690] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:16:46,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:16:46,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 12:16:46,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1627854410] [2024-12-02 12:16:46,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:16:46,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-02 12:16:46,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:16:46,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 12:16:46,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 12:16:46,481 INFO L87 Difference]: Start difference. First operand 75 states and 97 transitions. Second operand has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:16:51,736 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:16:56,980 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.39s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:17:00,986 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:17:04,990 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:17:06,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:17:10,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:17:13,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.28s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-12-02 12:17:18,043 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:17:22,048 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:17:24,640 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:17:29,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.11s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:17:33,639 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 12:17:35,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:17:35,488 INFO L93 Difference]: Finished difference Result 79 states and 100 transitions. [2024-12-02 12:17:35,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 12:17:35,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-12-02 12:17:35,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:17:35,512 INFO L225 Difference]: With dead ends: 79 [2024-12-02 12:17:35,512 INFO L226 Difference]: Without dead ends: 75 [2024-12-02 12:17:35,512 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-12-02 12:17:35,513 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 82 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 1 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 207 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 48.6s IncrementalHoareTripleChecker+Time [2024-12-02 12:17:35,513 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 207 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 74 Invalid, 8 Unknown, 0 Unchecked, 48.6s Time] [2024-12-02 12:17:35,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-12-02 12:17:35,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-12-02 12:17:35,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 69 states have (on average 1.289855072463768) internal successors, (89), 69 states have internal predecessors, (89), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-12-02 12:17:35,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 95 transitions. [2024-12-02 12:17:35,523 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 95 transitions. Word has length 20 [2024-12-02 12:17:35,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:17:35,523 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 95 transitions. [2024-12-02 12:17:35,523 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:17:35,523 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 95 transitions. [2024-12-02 12:17:35,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-12-02 12:17:35,524 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 12:17:35,524 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 12:17:35,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 12:17:35,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:17:35,725 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 12:17:35,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 12:17:35,725 INFO L85 PathProgramCache]: Analyzing trace with hash -283540221, now seen corresponding path program 1 times [2024-12-02 12:17:35,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 12:17:35,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [349653429] [2024-12-02 12:17:35,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 12:17:35,726 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 [2024-12-02 12:17:35,726 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 12:17:35,728 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 12:17:35,729 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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 (7)] Waiting until timeout for monitored process [2024-12-02 12:17:36,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 12:17:36,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-12-02 12:17:36,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 12:17:37,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-02 12:17:37,844 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 12:17:37,844 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 12:17:37,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [349653429] [2024-12-02 12:17:37,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [349653429] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 12:17:37,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 12:17:37,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-12-02 12:17:37,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972369585] [2024-12-02 12:17:37,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 12:17:37,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 12:17:37,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 12:17:37,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 12:17:37,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-12-02 12:17:37,846 INFO L87 Difference]: Start difference. First operand 75 states and 95 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:17:38,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 12:17:38,819 INFO L93 Difference]: Finished difference Result 75 states and 95 transitions. [2024-12-02 12:17:38,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-02 12:17:38,819 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2024-12-02 12:17:38,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 12:17:38,820 INFO L225 Difference]: With dead ends: 75 [2024-12-02 12:17:38,820 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 12:17:38,820 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2024-12-02 12:17:38,821 INFO L435 NwaCegarLoop]: 8 mSDtfsCounter, 17 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 12:17:38,821 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 44 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 12:17:38,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 12:17:38,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 12:17:38,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:17:38,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 12:17:38,822 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 25 [2024-12-02 12:17:38,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 12:17:38,823 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 12:17:38,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 12:17:38,823 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 12:17:38,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 12:17:38,825 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 12:17:38,847 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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 (7)] Ended with exit code 0 [2024-12-02 12:17:39,026 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 12:17:39,028 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-12-02 12:17:39,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 12:17:39,560 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 12:17:39,571 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 12:17:39,572 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2024-12-02 12:17:39,572 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 12:17:39,572 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 12:17:39,573 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-12-02 12:17:39,573 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2024-12-02 12:17:39,573 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 12:17:39,574 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2024-12-02 12:17:39,574 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-12-02 12:17:39,574 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 12:17:39,574 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression [2024-12-02 12:17:39,574 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 12:17:39,574 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-12-02 12:17:39,574 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~Pluszero~32 [2024-12-02 12:17:39,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 12:17:39 BoogieIcfgContainer [2024-12-02 12:17:39,574 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 12:17:39,575 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 12:17:39,575 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 12:17:39,575 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 12:17:39,576 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 12:16:18" (3/4) ... [2024-12-02 12:17:39,578 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 12:17:39,581 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2024-12-02 12:17:39,581 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2024-12-02 12:17:39,586 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2024-12-02 12:17:39,586 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-12-02 12:17:39,586 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-02 12:17:39,587 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 12:17:39,668 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 12:17:39,668 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 12:17:39,668 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 12:17:39,668 INFO L158 Benchmark]: Toolchain (without parser) took 105979.89ms. Allocated memory is still 92.3MB. Free memory was 69.9MB in the beginning and 47.1MB in the end (delta: 22.8MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2024-12-02 12:17:39,669 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:17:39,669 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.42ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 54.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 12:17:39,669 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.48ms. Allocated memory is still 92.3MB. Free memory was 54.3MB in the beginning and 52.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:17:39,669 INFO L158 Benchmark]: Boogie Preprocessor took 69.76ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 47.5MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:17:39,669 INFO L158 Benchmark]: RCFGBuilder took 24360.31ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 45.1MB in the end (delta: 2.4MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. [2024-12-02 12:17:39,670 INFO L158 Benchmark]: TraceAbstraction took 81119.97ms. Allocated memory is still 92.3MB. Free memory was 44.5MB in the beginning and 54.7MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 12:17:39,670 INFO L158 Benchmark]: Witness Printer took 92.86ms. Allocated memory is still 92.3MB. Free memory was 54.7MB in the beginning and 47.1MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 12:17:39,671 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 83.9MB. Free memory is still 48.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 288.42ms. Allocated memory is still 92.3MB. Free memory was 69.7MB in the beginning and 54.3MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.48ms. Allocated memory is still 92.3MB. Free memory was 54.3MB in the beginning and 52.3MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.76ms. Allocated memory is still 92.3MB. Free memory was 52.3MB in the beginning and 47.5MB in the end (delta: 4.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 24360.31ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 45.1MB in the end (delta: 2.4MB). Peak memory consumption was 21.8MB. Max. memory is 16.1GB. * TraceAbstraction took 81119.97ms. Allocated memory is still 92.3MB. Free memory was 44.5MB in the beginning and 54.7MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 92.86ms. Allocated memory is still 92.3MB. Free memory was 54.7MB in the beginning and 47.1MB in the end (delta: 7.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: BitVectorAccessExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~Pluszero~32 * 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 - PositiveResult [Line: 232]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 86 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 80.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 64.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 571 SdHoareTripleChecker+Valid, 61.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 569 mSDsluCounter, 1526 SdHoareTripleChecker+Invalid, 61.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1073 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 286 IncrementalHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 453 mSDtfsCounter, 286 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 119 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 9.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=0, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 29 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 100 ConstructedInterpolants, 16 QuantifiedInterpolants, 1014 SizeOfPredicates, 24 NumberOfNonLiveVariables, 822 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 198]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-12-02 12:17:39,765 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c792fa2-4463-4977-904d-2e26c4d9ea4d/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE