./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.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_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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_4faea78c-a318-4790-9fa2-c16be8506f3f/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 8753b765717c2fe536e6a90ddefcee5a9aeaabafbc1bd4d26f8bbeefc7c2c477 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:45:20,173 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:45:20,274 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:45:20,279 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:45:20,279 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:45:20,300 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:45:20,301 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:45:20,301 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:45:20,301 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:45:20,302 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:45:20,302 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:45:20,302 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:45:20,302 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:45:20,302 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:45:20,302 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:45:20,302 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:45:20,303 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:45:20,303 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:45:20,303 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:45:20,303 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:45:20,303 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:45:20,303 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:45:20,303 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:45:20,303 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:45:20,303 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:45:20,303 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:45:20,304 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:45:20,304 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:45:20,304 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:45:20,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:20,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:20,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:20,304 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:20,304 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:45:20,304 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:20,304 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:20,304 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:20,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:20,305 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:45:20,305 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:45:20,305 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:45:20,305 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:45:20,305 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:45:20,305 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:45:20,305 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:45:20,305 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:45:20,305 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:45:20,306 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:45:20,306 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_4faea78c-a318-4790-9fa2-c16be8506f3f/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 -> 8753b765717c2fe536e6a90ddefcee5a9aeaabafbc1bd4d26f8bbeefc7c2c477 [2024-11-28 04:45:20,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:45:20,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:45:20,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:45:20,584 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:45:20,584 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:45:20,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2024-11-28 04:45:23,656 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/data/7a949a163/f89a2087a4954f0080a35fae4bb5dca5/FLAG4023d7a47 [2024-11-28 04:45:23,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:45:23,970 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2024-11-28 04:45:23,979 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/data/7a949a163/f89a2087a4954f0080a35fae4bb5dca5/FLAG4023d7a47 [2024-11-28 04:45:24,000 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/data/7a949a163/f89a2087a4954f0080a35fae4bb5dca5 [2024-11-28 04:45:24,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:45:24,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:45:24,008 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:24,009 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:45:24,015 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:45:24,016 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:24" (1/1) ... [2024-11-28 04:45:24,019 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304f3bc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:24, skipping insertion in model container [2024-11-28 04:45:24,019 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:24" (1/1) ... [2024-11-28 04:45:24,039 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:45:24,258 ERROR L321 MainTranslator]: Unsupported Syntax: floats in unions are not supported in the integer translation. [2024-11-28 04:45:24,259 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3546d5e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:24, skipping insertion in model container [2024-11-28 04:45:24,259 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:24,260 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2024-11-28 04:45:24,263 INFO L158 Benchmark]: Toolchain (without parser) took 256.18ms. Allocated memory is still 142.6MB. Free memory was 117.4MB in the beginning and 108.6MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:24,264 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:24,267 INFO L158 Benchmark]: CACSL2BoogieTranslator took 252.40ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 108.6MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:24,269 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 117.4MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 252.40ms. Allocated memory is still 142.6MB. Free memory was 117.2MB in the beginning and 108.6MB 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: 8]: 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_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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_4faea78c-a318-4790-9fa2-c16be8506f3f/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 8753b765717c2fe536e6a90ddefcee5a9aeaabafbc1bd4d26f8bbeefc7c2c477 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:45:27,108 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:45:27,226 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:45:27,242 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:45:27,244 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:45:27,275 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:45:27,276 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:45:27,276 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:45:27,277 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:45:27,277 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:45:27,277 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:45:27,277 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:45:27,278 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:45:27,278 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:45:27,278 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:45:27,278 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:45:27,279 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:45:27,279 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:45:27,279 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:45:27,279 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:45:27,279 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:45:27,280 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:45:27,280 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:45:27,280 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:45:27,280 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:45:27,280 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:45:27,281 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:45:27,281 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:45:27,281 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:45:27,281 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:45:27,281 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:45:27,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:27,282 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:27,282 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:27,282 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:27,282 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:45:27,282 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:45:27,283 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:45:27,283 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:45:27,283 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:27,283 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:45:27,283 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:45:27,284 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:45:27,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:45:27,284 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:45:27,284 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:45:27,284 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:45:27,284 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:45:27,285 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:45:27,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:45:27,285 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_4faea78c-a318-4790-9fa2-c16be8506f3f/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 -> 8753b765717c2fe536e6a90ddefcee5a9aeaabafbc1bd4d26f8bbeefc7c2c477 [2024-11-28 04:45:27,672 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:45:27,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:45:27,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:45:27,686 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:45:27,686 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:45:27,687 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2024-11-28 04:45:30,947 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/data/483c6fad3/7ee381eea9c249ffb65e2a2c70ad66d2/FLAGd5382680d [2024-11-28 04:45:31,286 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:45:31,287 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/sv-benchmarks/c/float-newlib/double_req_bl_1071.c [2024-11-28 04:45:31,304 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/data/483c6fad3/7ee381eea9c249ffb65e2a2c70ad66d2/FLAGd5382680d [2024-11-28 04:45:31,546 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/data/483c6fad3/7ee381eea9c249ffb65e2a2c70ad66d2 [2024-11-28 04:45:31,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:45:31,552 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:45:31,553 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:31,554 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:45:31,560 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:45:31,561 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,562 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a3365a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31, skipping insertion in model container [2024-11-28 04:45:31,562 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,582 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:45:31,786 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_4faea78c-a318-4790-9fa2-c16be8506f3f/sv-benchmarks/c/float-newlib/double_req_bl_1071.c[1883,1896] [2024-11-28 04:45:31,790 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:45:31,807 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:45:31,852 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_4faea78c-a318-4790-9fa2-c16be8506f3f/sv-benchmarks/c/float-newlib/double_req_bl_1071.c[1883,1896] [2024-11-28 04:45:31,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:45:31,873 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:45:31,874 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31 WrapperNode [2024-11-28 04:45:31,874 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:45:31,875 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:45:31,875 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:45:31,875 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:45:31,882 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,894 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,920 INFO L138 Inliner]: procedures = 19, calls = 29, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 91 [2024-11-28 04:45:31,920 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:45:31,921 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:45:31,921 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:45:31,921 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:45:31,930 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,930 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,934 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,947 INFO L175 MemorySlicer]: Split 14 memory accesses to 5 slices as follows [2, 3, 3, 3, 3]. 21 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 7 writes are split as follows [0, 1, 2, 2, 2]. [2024-11-28 04:45:31,947 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,947 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,959 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,960 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,963 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,966 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,967 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,972 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:45:31,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:45:31,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:45:31,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:45:31,974 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (1/1) ... [2024-11-28 04:45:31,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:45:31,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:45:32,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:45:32,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:45:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:45:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2024-11-28 04:45:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2024-11-28 04:45:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2024-11-28 04:45:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2024-11-28 04:45:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2024-11-28 04:45:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2024-11-28 04:45:32,037 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2024-11-28 04:45:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2024-11-28 04:45:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2024-11-28 04:45:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2024-11-28 04:45:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:45:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2024-11-28 04:45:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2024-11-28 04:45:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2024-11-28 04:45:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2024-11-28 04:45:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 04:45:32,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2024-11-28 04:45:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2024-11-28 04:45:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2024-11-28 04:45:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2024-11-28 04:45:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2024-11-28 04:45:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:45:32,039 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:45:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2024-11-28 04:45:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2024-11-28 04:45:32,039 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2024-11-28 04:45:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2024-11-28 04:45:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2024-11-28 04:45:32,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 04:45:32,195 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:45:32,197 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:45:32,526 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-28 04:45:32,526 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:45:32,540 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:45:32,540 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 04:45:32,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:32 BoogieIcfgContainer [2024-11-28 04:45:32,541 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:45:32,547 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:45:32,547 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:45:32,554 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:45:32,554 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:45:31" (1/3) ... [2024-11-28 04:45:32,555 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f99666a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:45:32, skipping insertion in model container [2024-11-28 04:45:32,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:45:31" (2/3) ... [2024-11-28 04:45:32,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f99666a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:45:32, skipping insertion in model container [2024-11-28 04:45:32,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:32" (3/3) ... [2024-11-28 04:45:32,558 INFO L128 eAbstractionObserver]: Analyzing ICFG double_req_bl_1071.c [2024-11-28 04:45:32,579 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:45:32,581 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG double_req_bl_1071.c that has 1 procedures, 24 locations, 1 initial locations, 4 loop locations, and 1 error locations. [2024-11-28 04:45:32,649 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:45:32,667 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;@691d1b84, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:45:32,667 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:45:32,671 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 23 states have internal predecessors, (36), 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 04:45:32,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-28 04:45:32,677 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:32,678 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:32,678 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:32,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:32,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1442186795, now seen corresponding path program 1 times [2024-11-28 04:45:32,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:45:32,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92439125] [2024-11-28 04:45:32,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:32,697 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 04:45:32,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:45:32,706 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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 04:45:32,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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 04:45:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:32,903 INFO L256 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:45:32,906 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:32,922 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 04:45:32,922 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:32,923 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:45:32,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92439125] [2024-11-28 04:45:32,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [92439125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:32,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:32,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:45:32,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655316060] [2024-11-28 04:45:32,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:32,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:45:32,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:45:32,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:45:32,954 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:45:32,956 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.6363636363636365) internal successors, (36), 23 states have internal predecessors, (36), 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 5.5) 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) [2024-11-28 04:45:32,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:32,975 INFO L93 Difference]: Finished difference Result 46 states and 70 transitions. [2024-11-28 04:45:32,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:45:32,978 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 [2024-11-28 04:45:32,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:32,987 INFO L225 Difference]: With dead ends: 46 [2024-11-28 04:45:32,987 INFO L226 Difference]: Without dead ends: 21 [2024-11-28 04:45:32,993 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 [2024-11-28 04:45:32,998 INFO L435 NwaCegarLoop]: 27 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, 27 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 04:45:33,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:45:33,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2024-11-28 04:45:33,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2024-11-28 04:45:33,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 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 04:45:33,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-11-28 04:45:33,044 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 11 [2024-11-28 04:45:33,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:33,044 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-28 04:45:33,044 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) [2024-11-28 04:45:33,044 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-28 04:45:33,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-11-28 04:45:33,046 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:33,046 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:33,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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 04:45:33,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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 04:45:33,251 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:33,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:33,252 INFO L85 PathProgramCache]: Analyzing trace with hash -822265870, now seen corresponding path program 1 times [2024-11-28 04:45:33,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:45:33,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [870350424] [2024-11-28 04:45:33,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:33,253 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 04:45:33,253 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:45:33,258 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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 04:45:33,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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 04:45:33,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:33,427 INFO L256 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 04:45:33,431 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:33,696 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 04:45:33,697 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:33,697 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:45:33,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [870350424] [2024-11-28 04:45:33,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [870350424] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:33,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:33,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 04:45:33,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059496754] [2024-11-28 04:45:33,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:33,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:45:33,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:45:33,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:45:33,703 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:45:33,703 INFO L87 Difference]: Start difference. First operand 21 states and 24 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 04:45:33,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:33,913 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2024-11-28 04:45:33,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:45:33,913 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 04:45:33,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:33,914 INFO L225 Difference]: With dead ends: 27 [2024-11-28 04:45:33,914 INFO L226 Difference]: Without dead ends: 20 [2024-11-28 04:45:33,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:45:33,916 INFO L435 NwaCegarLoop]: 18 mSDtfsCounter, 25 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:33,916 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 76 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:45:33,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2024-11-28 04:45:33,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2024-11-28 04:45:33,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.105263157894737) internal successors, (21), 19 states have internal predecessors, (21), 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 04:45:33,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2024-11-28 04:45:33,920 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 12 [2024-11-28 04:45:33,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:33,920 INFO L471 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2024-11-28 04:45:33,920 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 04:45:33,920 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2024-11-28 04:45:33,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-28 04:45:33,921 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:45:33,921 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:45:33,926 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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)] Ended with exit code 0 [2024-11-28 04:45:34,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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 04:45:34,122 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:45:34,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:45:34,122 INFO L85 PathProgramCache]: Analyzing trace with hash -540548880, now seen corresponding path program 1 times [2024-11-28 04:45:34,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:45:34,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1983224055] [2024-11-28 04:45:34,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:45:34,123 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 04:45:34,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:45:34,125 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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 04:45:34,128 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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 04:45:34,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:45:34,240 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-28 04:45:34,244 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:45:34,491 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 04:45:34,491 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:45:34,491 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:45:34,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1983224055] [2024-11-28 04:45:34,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1983224055] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:45:34,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:45:34,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:45:34,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936435786] [2024-11-28 04:45:34,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:45:34,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:45:34,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:45:34,492 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:45:34,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:45:34,493 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:34,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:45:34,707 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2024-11-28 04:45:34,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:45:34,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2024-11-28 04:45:34,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:45:34,709 INFO L225 Difference]: With dead ends: 20 [2024-11-28 04:45:34,709 INFO L226 Difference]: Without dead ends: 0 [2024-11-28 04:45:34,709 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:45:34,710 INFO L435 NwaCegarLoop]: 3 mSDtfsCounter, 7 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:45:34,710 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 7 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:45:34,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-28 04:45:34,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-28 04:45:34,711 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 04:45:34,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-28 04:45:34,712 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2024-11-28 04:45:34,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:45:34,712 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-28 04:45:34,712 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:45:34,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-28 04:45:34,713 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-28 04:45:34,715 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:45:34,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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)] Forceful destruction successful, exit code 0 [2024-11-28 04:45:34,916 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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 04:45:34,919 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-28 04:45:34,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-28 04:45:34,985 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:45:35,000 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-28 04:45:35,000 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-28 04:45:35,000 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-28 04:45:35,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:45:35 BoogieIcfgContainer [2024-11-28 04:45:35,001 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:45:35,003 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:45:35,003 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:45:35,003 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:45:35,004 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:45:32" (3/4) ... [2024-11-28 04:45:35,006 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-28 04:45:35,013 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-28 04:45:35,014 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2024-11-28 04:45:35,014 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-28 04:45:35,014 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-28 04:45:35,133 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:45:35,133 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 04:45:35,133 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:45:35,137 INFO L158 Benchmark]: Toolchain (without parser) took 3582.85ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 60.6MB in the beginning and 64.3MB in the end (delta: -3.7MB). Peak memory consumption was 52.3MB. Max. memory is 16.1GB. [2024-11-28 04:45:35,137 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:35,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.81ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 47.9MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:35,139 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.50ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 46.6MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:35,139 INFO L158 Benchmark]: Boogie Preprocessor took 51.44ms. Allocated memory is still 83.9MB. Free memory was 46.6MB in the beginning and 44.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:45:35,139 INFO L158 Benchmark]: RCFGBuilder took 568.29ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 30.7MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:35,141 INFO L158 Benchmark]: TraceAbstraction took 2454.73ms. Allocated memory is still 83.9MB. Free memory was 30.2MB in the beginning and 19.1MB in the end (delta: 11.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-11-28 04:45:35,141 INFO L158 Benchmark]: Witness Printer took 130.31ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 19.1MB in the beginning and 64.3MB in the end (delta: -45.2MB). Peak memory consumption was 14.3MB. Max. memory is 16.1GB. [2024-11-28 04:45:35,143 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 83.9MB. Free memory is still 64.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.81ms. Allocated memory is still 83.9MB. Free memory was 60.6MB in the beginning and 47.9MB in the end (delta: 12.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.50ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 46.6MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.44ms. Allocated memory is still 83.9MB. Free memory was 46.6MB in the beginning and 44.1MB in the end (delta: 2.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 568.29ms. Allocated memory is still 83.9MB. Free memory was 44.1MB in the beginning and 30.7MB in the end (delta: 13.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2454.73ms. Allocated memory is still 83.9MB. Free memory was 30.2MB in the beginning and 19.1MB in the end (delta: 11.1MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. * Witness Printer took 130.31ms. Allocated memory was 83.9MB in the beginning and 92.3MB in the end (delta: 8.4MB). Free memory was 19.1MB in the beginning and 64.3MB in the end (delta: -45.2MB). Peak memory consumption was 14.3MB. 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 * 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: 76]: 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, 24 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 32 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 32 mSDsluCounter, 110 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 38 IncrementalHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 48 mSDtfsCounter, 38 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 34 ConstructedInterpolants, 4 QuantifiedInterpolants, 168 SizeOfPredicates, 6 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 22 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: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 41]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2024-11-28 04:45:35,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4faea78c-a318-4790-9fa2-c16be8506f3f/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