./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.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_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB --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 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:55:34,150 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:55:34,247 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:55:34,259 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:55:34,259 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:55:34,297 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:55:34,298 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:55:34,299 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:55:34,299 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:55:34,300 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:55:34,300 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:55:34,300 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:55:34,301 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:55:34,301 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:55:34,301 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:55:34,301 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:55:34,302 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:55:34,303 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:55:34,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:55:34,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:55:34,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:55:34,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:55:34,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:55:34,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:55:34,303 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:55:34,304 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:55:34,304 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:55:34,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:55:34,304 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:55:34,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:55:34,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:55:34,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:55:34,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:55:34,305 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:55:34,305 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:55:34,305 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:55:34,305 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:55:34,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:55:34,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:55:34,306 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:55:34,306 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:55:34,306 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:55:34,306 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:55:34,307 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:55:34,307 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:55:34,307 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:55:34,307 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:55:34,307 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:55:34,307 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_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc [2024-11-28 02:55:34,642 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:55:34,652 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:55:34,655 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:55:34,657 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:55:34,657 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:55:34,658 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2024-11-28 02:55:37,520 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/data/4f8950b90/775a1e5faf8b4cf4bebee8eb48d576b9/FLAG286cfdd98 [2024-11-28 02:55:37,832 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:55:37,832 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2024-11-28 02:55:37,842 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/data/4f8950b90/775a1e5faf8b4cf4bebee8eb48d576b9/FLAG286cfdd98 [2024-11-28 02:55:37,882 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/data/4f8950b90/775a1e5faf8b4cf4bebee8eb48d576b9 [2024-11-28 02:55:37,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:55:37,887 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:55:37,889 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:55:37,889 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:55:37,895 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:55:37,896 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:55:37" (1/1) ... [2024-11-28 02:55:37,899 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1598f4e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:37, skipping insertion in model container [2024-11-28 02:55:37,899 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:55:37" (1/1) ... [2024-11-28 02:55:37,922 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:55:38,075 ERROR L321 MainTranslator]: Unsupported Syntax: floats in unions are not supported in the integer translation. [2024-11-28 02:55:38,075 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5cb26f7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:38, skipping insertion in model container [2024-11-28 02:55:38,075 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:55:38,076 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 02:55:38,077 INFO L158 Benchmark]: Toolchain (without parser) took 189.60ms. Allocated memory is still 117.4MB. Free memory was 93.9MB in the beginning and 85.1MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:55:38,078 INFO L158 Benchmark]: CDTParser took 1.27ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:55:38,078 INFO L158 Benchmark]: CACSL2BoogieTranslator took 186.95ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 85.1MB in the end (delta: 8.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:55:38,079 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.27ms. Allocated memory is still 167.8MB. Free memory is still 103.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 186.95ms. Allocated memory is still 117.4MB. Free memory was 93.5MB in the beginning and 85.1MB in the end (delta: 8.5MB). 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_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB --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 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:55:40,470 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:55:40,550 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 02:55:40,556 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:55:40,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:55:40,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:55:40,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:55:40,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:55:40,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:55:40,592 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:55:40,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:55:40,593 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:55:40,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:55:40,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:55:40,593 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:55:40,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:55:40,594 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:55:40,594 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:55:40,594 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:55:40,594 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:55:40,594 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:55:40,594 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:55:40,595 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:55:40,595 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 02:55:40,595 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 02:55:40,595 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 02:55:40,595 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:55:40,595 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:55:40,595 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:55:40,595 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:55:40,596 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:55:40,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:55:40,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:55:40,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:55:40,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:55:40,596 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:55:40,596 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:55:40,596 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:55:40,596 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:55:40,596 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:55:40,597 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:55:40,597 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:55:40,597 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:55:40,597 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:55:40,597 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 02:55:40,597 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 02:55:40,597 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:55:40,597 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:55:40,597 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:55:40,597 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:55:40,598 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_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 531a1139fb1df73d7771aceceeca279cd2242c70bbd9f853f2d0e457d633cadc [2024-11-28 02:55:40,942 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:55:40,955 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:55:40,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:55:40,960 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:55:40,961 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:55:40,965 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2024-11-28 02:55:44,024 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/data/43d9e9cf4/c4a32051fbda42c8866910374e41e14b/FLAG98687e00a [2024-11-28 02:55:44,328 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:55:44,329 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c [2024-11-28 02:55:44,347 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/data/43d9e9cf4/c4a32051fbda42c8866910374e41e14b/FLAG98687e00a [2024-11-28 02:55:44,606 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/data/43d9e9cf4/c4a32051fbda42c8866910374e41e14b [2024-11-28 02:55:44,609 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:55:44,610 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:55:44,612 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:55:44,612 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:55:44,616 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:55:44,617 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:44,618 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49abd7d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44, skipping insertion in model container [2024-11-28 02:55:44,618 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:44,634 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:55:44,812 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_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2024-11-28 02:55:44,816 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:55:44,829 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:55:44,863 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_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/sv-benchmarks/c/float-newlib/float_req_bl_1122b.c[2726,2739] [2024-11-28 02:55:44,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:55:44,887 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:55:44,888 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44 WrapperNode [2024-11-28 02:55:44,888 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:55:44,890 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:55:44,890 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:55:44,891 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:55:44,899 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:44,913 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:44,952 INFO L138 Inliner]: procedures = 21, calls = 31, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 165 [2024-11-28 02:55:44,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:55:44,955 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:55:44,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:55:44,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:55:44,965 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:44,965 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:44,974 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:44,992 INFO L175 MemorySlicer]: Split 15 memory accesses to 6 slices as follows [2, 5, 2, 2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 0, 1, 1, 1, 1]. [2024-11-28 02:55:44,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:44,993 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:45,013 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:45,014 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:45,020 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:45,026 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:45,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:45,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:55:45,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:55:45,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:55:45,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:55:45,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (1/1) ... [2024-11-28 02:55:45,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:55:45,062 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:55:45,074 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:55:45,076 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:55:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:55:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#0 [2024-11-28 02:55:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#1 [2024-11-28 02:55:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#2 [2024-11-28 02:55:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#3 [2024-11-28 02:55:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#4 [2024-11-28 02:55:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4#5 [2024-11-28 02:55:45,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#0 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#1 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#2 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#3 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#4 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4#5 [2024-11-28 02:55:45,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:55:45,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#0 [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#1 [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#2 [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#3 [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#4 [2024-11-28 02:55:45,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4#5 [2024-11-28 02:55:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 02:55:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 02:55:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 02:55:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-28 02:55:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-28 02:55:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2024-11-28 02:55:45,101 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:55:45,216 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:55:45,219 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:55:46,821 INFO L? ?]: Removed 39 outVars from TransFormulas that were not future-live. [2024-11-28 02:55:46,821 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:55:46,831 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:55:46,831 INFO L312 CfgBuilder]: Removed 8 assume(true) statements. [2024-11-28 02:55:46,832 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:55:46 BoogieIcfgContainer [2024-11-28 02:55:46,832 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:55:46,834 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:55:46,834 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:55:46,840 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:55:46,840 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:55:44" (1/3) ... [2024-11-28 02:55:46,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbbf546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:55:46, skipping insertion in model container [2024-11-28 02:55:46,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:55:44" (2/3) ... [2024-11-28 02:55:46,841 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbbf546 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:55:46, skipping insertion in model container [2024-11-28 02:55:46,841 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:55:46" (3/3) ... [2024-11-28 02:55:46,843 INFO L128 eAbstractionObserver]: Analyzing ICFG float_req_bl_1122b.c [2024-11-28 02:55:46,859 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:55:46,860 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG float_req_bl_1122b.c that has 1 procedures, 44 locations, 1 initial locations, 8 loop locations, and 1 error locations. [2024-11-28 02:55:46,912 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:55:46,924 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;@a18f7f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:55:46,924 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:55:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 44 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 43 states have internal predecessors, (72), 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) [2024-11-28 02:55:46,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-28 02:55:46,936 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:46,939 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:46,939 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:55:46,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:46,947 INFO L85 PathProgramCache]: Analyzing trace with hash -51304267, now seen corresponding path program 1 times [2024-11-28 02:55:46,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:55:46,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1377873493] [2024-11-28 02:55:46,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:46,961 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 [2024-11-28 02:55:46,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:55:46,964 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:55:46,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:55:47,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:47,307 INFO L256 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:55:47,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:47,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:47,326 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:55:47,326 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:55:47,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1377873493] [2024-11-28 02:55:47,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1377873493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:47,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:47,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:55:47,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125212237] [2024-11-28 02:55:47,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:47,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:55:47,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:55:47,352 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:55:47,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:55:47,355 INFO L87 Difference]: Start difference. First operand has 44 states, 42 states have (on average 1.7142857142857142) internal successors, (72), 43 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:47,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:47,372 INFO L93 Difference]: Finished difference Result 86 states and 142 transitions. [2024-11-28 02:55:47,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:55:47,373 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2024-11-28 02:55:47,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:47,381 INFO L225 Difference]: With dead ends: 86 [2024-11-28 02:55:47,381 INFO L226 Difference]: Without dead ends: 41 [2024-11-28 02:55:47,384 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:55:47,386 INFO L435 NwaCegarLoop]: 59 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, 59 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 [2024-11-28 02:55:47,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:55:47,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-28 02:55:47,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2024-11-28 02:55:47,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.4) internal successors, (56), 40 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:47,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2024-11-28 02:55:47,419 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 56 transitions. Word has length 10 [2024-11-28 02:55:47,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:47,419 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 56 transitions. [2024-11-28 02:55:47,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 02:55:47,419 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 56 transitions. [2024-11-28 02:55:47,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 02:55:47,420 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:47,420 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:47,428 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:47,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:55:47,621 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:55:47,622 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:47,623 INFO L85 PathProgramCache]: Analyzing trace with hash 1900769651, now seen corresponding path program 1 times [2024-11-28 02:55:47,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:55:47,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [535505738] [2024-11-28 02:55:47,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:47,626 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 [2024-11-28 02:55:47,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:55:47,628 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:55:47,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:55:47,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:47,969 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:55:47,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:49,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:49,630 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:55:49,630 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:55:49,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [535505738] [2024-11-28 02:55:49,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [535505738] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:49,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:49,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:55:49,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196054043] [2024-11-28 02:55:49,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:49,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 02:55:49,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:55:49,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 02:55:49,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:55:49,633 INFO L87 Difference]: Start difference. First operand 41 states and 56 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-11-28 02:55:52,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:52,267 INFO L93 Difference]: Finished difference Result 47 states and 61 transitions. [2024-11-28 02:55:52,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:55:52,268 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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 12 [2024-11-28 02:55:52,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:52,269 INFO L225 Difference]: With dead ends: 47 [2024-11-28 02:55:52,269 INFO L226 Difference]: Without dead ends: 42 [2024-11-28 02:55:52,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 02:55:52,270 INFO L435 NwaCegarLoop]: 50 mSDtfsCounter, 88 mSDsluCounter, 147 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:52,271 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 197 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 02:55:52,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-11-28 02:55:52,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 41. [2024-11-28 02:55:52,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 40 states have (on average 1.375) internal successors, (55), 40 states have internal predecessors, (55), 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) [2024-11-28 02:55:52,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 55 transitions. [2024-11-28 02:55:52,276 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 55 transitions. Word has length 12 [2024-11-28 02:55:52,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:52,277 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 55 transitions. [2024-11-28 02:55:52,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 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) [2024-11-28 02:55:52,277 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 55 transitions. [2024-11-28 02:55:52,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2024-11-28 02:55:52,277 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:55:52,278 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:55:52,284 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-28 02:55:52,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:55:52,478 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:55:52,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:55:52,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1281473995, now seen corresponding path program 1 times [2024-11-28 02:55:52,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 02:55:52,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1840089975] [2024-11-28 02:55:52,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:55:52,480 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 [2024-11-28 02:55:52,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 02:55:52,481 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-28 02:55:52,483 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:55:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:55:52,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:55:52,593 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:55:52,861 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:55:52,861 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:55:52,862 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 02:55:52,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1840089975] [2024-11-28 02:55:52,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1840089975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:55:52,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:55:52,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:55:52,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422885834] [2024-11-28 02:55:52,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:55:52,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:55:52,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 02:55:52,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:55:52,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:55:52,863 INFO L87 Difference]: Start difference. First operand 41 states and 55 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2024-11-28 02:55:53,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:55:53,047 INFO L93 Difference]: Finished difference Result 41 states and 55 transitions. [2024-11-28 02:55:53,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:55:53,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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 [2024-11-28 02:55:53,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:55:53,047 INFO L225 Difference]: With dead ends: 41 [2024-11-28 02:55:53,048 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 02:55:53,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:55:53,049 INFO L435 NwaCegarLoop]: 5 mSDtfsCounter, 5 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:55:53,049 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 11 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:55:53,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 02:55:53,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 02:55:53,050 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) [2024-11-28 02:55:53,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 02:55:53,050 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2024-11-28 02:55:53,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:55:53,050 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 02:55:53,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 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) [2024-11-28 02:55:53,051 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 02:55:53,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 02:55:53,056 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:55:53,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:55:53,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-28 02:55:53,259 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 02:55:53,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 02:55:53,461 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:55:53,475 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-28 02:55:53,476 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 02:55:53,476 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 02:55:53,477 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-28 02:55:53,477 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-28 02:55:53,477 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 02:55:53,477 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 02:55:53,477 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:55:53 BoogieIcfgContainer [2024-11-28 02:55:53,477 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:55:53,480 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:55:53,480 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:55:53,480 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:55:53,486 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:55:46" (3/4) ... [2024-11-28 02:55:53,488 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 02:55:53,501 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-28 02:55:53,501 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-11-28 02:55:53,502 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 02:55:53,502 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 02:55:53,630 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:55:53,631 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:55:53,631 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:55:53,632 INFO L158 Benchmark]: Toolchain (without parser) took 9021.40ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 87.7MB in the end (delta: 5.0MB). Peak memory consumption was 60.2MB. Max. memory is 16.1GB. [2024-11-28 02:55:53,632 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:55:53,632 INFO L158 Benchmark]: CACSL2BoogieTranslator took 277.43ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.0MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:55:53,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.98ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 77.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:55:53,633 INFO L158 Benchmark]: Boogie Preprocessor took 81.81ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 74.5MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:55:53,633 INFO L158 Benchmark]: RCFGBuilder took 1794.54ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 55.6MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:55:53,633 INFO L158 Benchmark]: TraceAbstraction took 6643.29ms. Allocated memory is still 117.4MB. Free memory was 54.8MB in the beginning and 44.4MB in the end (delta: 10.4MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. [2024-11-28 02:55:53,634 INFO L158 Benchmark]: Witness Printer took 151.19ms. Allocated memory is still 117.4MB. Free memory was 43.9MB in the beginning and 87.7MB in the end (delta: -43.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. [2024-11-28 02:55:53,635 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 277.43ms. Allocated memory is still 117.4MB. Free memory was 92.5MB in the beginning and 79.0MB in the end (delta: 13.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.98ms. Allocated memory is still 117.4MB. Free memory was 79.0MB in the beginning and 77.3MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.81ms. Allocated memory is still 117.4MB. Free memory was 77.3MB in the beginning and 74.5MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1794.54ms. Allocated memory is still 117.4MB. Free memory was 74.5MB in the beginning and 55.6MB in the end (delta: 18.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 6643.29ms. Allocated memory is still 117.4MB. Free memory was 54.8MB in the beginning and 44.4MB in the end (delta: 10.4MB). Peak memory consumption was 13.5MB. Max. memory is 16.1GB. * Witness Printer took 151.19ms. Allocated memory is still 117.4MB. Free memory was 43.9MB in the beginning and 87.7MB in the end (delta: -43.7MB). Peak memory consumption was 13.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - 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: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - 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: Unknown variable: ~roundNearestTiesToEven * 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: 125]: 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 1 procedures, 44 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.4s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 93 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 93 mSDsluCounter, 267 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 153 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 114 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=44occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 7 QuantifiedInterpolants, 226 SizeOfPredicates, 6 NumberOfNonLiveVariables, 174 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 90]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 43]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 02:55:53,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ede0c6b2-7b19-489a-83e9-a6bebafbf56f/bin/uautomizer-verify-aQ6SnzHsRB/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