./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ --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 86f4c48bd26ce0df301001b762b320097809bf71324092596b2b5e53d7dc1a20 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:34:05,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:34:05,649 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:34:05,654 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:34:05,655 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:34:05,702 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:34:05,703 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:34:05,704 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:34:05,705 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:34:05,705 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:34:05,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:34:05,707 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:34:05,707 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:34:05,708 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:34:05,709 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:34:05,709 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:34:05,710 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:34:05,710 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:34:05,711 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:34:05,711 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:34:05,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:34:05,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:34:05,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:34:05,714 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:34:05,714 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:34:05,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:34:05,715 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:34:05,715 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:34:05,716 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:34:05,716 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:34:05,717 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:34:05,717 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:34:05,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:34:05,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:34:05,719 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:34:05,719 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:34:05,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:34:05,732 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:34:05,733 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:34:05,733 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:34:05,733 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:34:05,734 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:34:05,734 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86f4c48bd26ce0df301001b762b320097809bf71324092596b2b5e53d7dc1a20 [2023-11-23 22:34:06,037 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:34:06,080 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:34:06,083 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:34:06,085 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:34:06,085 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:34:06,087 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2023-11-23 22:34:09,278 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:34:09,534 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:34:09,535 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2023-11-23 22:34:09,545 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/data/964868182/92318e96f7ec4262ae868825eede668d/FLAG7f92e6af7 [2023-11-23 22:34:09,562 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/data/964868182/92318e96f7ec4262ae868825eede668d [2023-11-23 22:34:09,564 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:34:09,566 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:34:09,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:34:09,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:34:09,574 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:34:09,575 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:09,577 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f7ad3db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09, skipping insertion in model container [2023-11-23 22:34:09,577 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:09,605 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:34:09,843 WARN L240 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_2fc79608-2bdc-493f-a19a-1a4e96c359d9/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c[3930,3943] [2023-11-23 22:34:09,851 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:34:09,871 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:34:09,945 WARN L240 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_2fc79608-2bdc-493f-a19a-1a4e96c359d9/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c[3930,3943] [2023-11-23 22:34:09,946 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:34:09,967 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:34:09,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09 WrapperNode [2023-11-23 22:34:09,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:34:09,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:34:09,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:34:09,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:34:09,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,002 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,055 INFO L138 Inliner]: procedures = 19, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 211 [2023-11-23 22:34:10,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:34:10,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:34:10,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:34:10,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:34:10,070 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,075 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,096 INFO L189 HeapSplitter]: Split 49 memory accesses to 9 slices as follows [2, 7, 7, 22, 2, 2, 2, 2, 3] [2023-11-23 22:34:10,097 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,097 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,126 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,129 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,138 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:34:10,140 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:34:10,140 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:34:10,140 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:34:10,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (1/1) ... [2023-11-23 22:34:10,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:34:10,167 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:34:10,181 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:34:10,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:34:10,223 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:34:10,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:34:10,225 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:34:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 22:34:10,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 22:34:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 22:34:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 22:34:10,227 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 22:34:10,228 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 22:34:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 22:34:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:34:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-11-23 22:34:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-11-23 22:34:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#2 [2023-11-23 22:34:10,230 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#3 [2023-11-23 22:34:10,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#4 [2023-11-23 22:34:10,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#5 [2023-11-23 22:34:10,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#6 [2023-11-23 22:34:10,231 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#7 [2023-11-23 22:34:10,232 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#8 [2023-11-23 22:34:10,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 22:34:10,233 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 22:34:10,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 22:34:10,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 22:34:10,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 22:34:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 22:34:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 22:34:10,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 22:34:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 22:34:10,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-11-23 22:34:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-11-23 22:34:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#2 [2023-11-23 22:34:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#3 [2023-11-23 22:34:10,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#4 [2023-11-23 22:34:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#5 [2023-11-23 22:34:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#6 [2023-11-23 22:34:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#7 [2023-11-23 22:34:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#8 [2023-11-23 22:34:10,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:34:10,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:34:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:34:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:34:10,240 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 22:34:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 22:34:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 22:34:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 22:34:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 22:34:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 22:34:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 22:34:10,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-11-23 22:34:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-11-23 22:34:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#2 [2023-11-23 22:34:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#3 [2023-11-23 22:34:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#4 [2023-11-23 22:34:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#5 [2023-11-23 22:34:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#6 [2023-11-23 22:34:10,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#7 [2023-11-23 22:34:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#8 [2023-11-23 22:34:10,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:34:10,400 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:34:10,402 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:34:10,747 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:34:10,802 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:34:10,802 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-23 22:34:10,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:10 BoogieIcfgContainer [2023-11-23 22:34:10,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:34:10,805 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:34:10,805 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:34:10,809 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:34:10,809 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:34:09" (1/3) ... [2023-11-23 22:34:10,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb75e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:10, skipping insertion in model container [2023-11-23 22:34:10,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:09" (2/3) ... [2023-11-23 22:34:10,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3cb75e66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:10, skipping insertion in model container [2023-11-23 22:34:10,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:10" (3/3) ... [2023-11-23 22:34:10,812 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2023-11-23 22:34:10,827 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:34:10,827 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:34:10,870 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:34:10,876 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@160310a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:34:10,876 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:34:10,882 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 32 states have internal predecessors, (54), 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) [2023-11-23 22:34:10,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 22:34:10,889 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:34:10,890 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:34:10,890 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:34:10,895 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:34:10,895 INFO L85 PathProgramCache]: Analyzing trace with hash 2077933369, now seen corresponding path program 1 times [2023-11-23 22:34:10,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:34:10,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92251927] [2023-11-23 22:34:10,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:34:10,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:34:11,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:34:11,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:34:11,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:34:11,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92251927] [2023-11-23 22:34:11,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92251927] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:34:11,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:34:11,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:34:11,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041733633] [2023-11-23 22:34:11,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:34:11,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:34:11,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:34:11,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:34:11,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:34:11,192 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 32 states have internal predecessors, (54), 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) [2023-11-23 22:34:11,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:34:11,222 INFO L93 Difference]: Finished difference Result 65 states and 107 transitions. [2023-11-23 22:34:11,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:34:11,225 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 [2023-11-23 22:34:11,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:34:11,235 INFO L225 Difference]: With dead ends: 65 [2023-11-23 22:34:11,236 INFO L226 Difference]: Without dead ends: 31 [2023-11-23 22:34:11,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:34:11,246 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:34:11,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:34:11,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-23 22:34:11,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-23 22:34:11,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 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) [2023-11-23 22:34:11,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2023-11-23 22:34:11,294 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 10 [2023-11-23 22:34:11,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:34:11,294 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2023-11-23 22:34:11,294 INFO L496 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) [2023-11-23 22:34:11,295 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2023-11-23 22:34:11,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 22:34:11,296 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:34:11,296 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:34:11,296 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:34:11,296 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:34:11,297 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:34:11,297 INFO L85 PathProgramCache]: Analyzing trace with hash 174067387, now seen corresponding path program 1 times [2023-11-23 22:34:11,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:34:11,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200054774] [2023-11-23 22:34:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:34:11,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:34:11,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:34:11,414 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:34:11,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:34:11,490 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:34:11,496 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 22:34:11,498 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:34:11,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:34:11,502 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-23 22:34:11,505 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:34:11,538 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:34:11 BoogieIcfgContainer [2023-11-23 22:34:11,538 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:34:11,539 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:34:11,539 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:34:11,539 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:34:11,540 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:10" (3/4) ... [2023-11-23 22:34:11,542 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-23 22:34:11,543 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:34:11,544 INFO L158 Benchmark]: Toolchain (without parser) took 1978.01ms. Allocated memory is still 174.1MB. Free memory was 143.9MB in the beginning and 96.0MB in the end (delta: 47.8MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2023-11-23 22:34:11,545 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:34:11,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.84ms. Allocated memory is still 174.1MB. Free memory was 143.6MB in the beginning and 133.9MB in the end (delta: 9.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2023-11-23 22:34:11,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 86.61ms. Allocated memory is still 174.1MB. Free memory was 133.9MB in the beginning and 131.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:34:11,547 INFO L158 Benchmark]: Boogie Preprocessor took 81.84ms. Allocated memory is still 174.1MB. Free memory was 131.8MB in the beginning and 128.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-23 22:34:11,547 INFO L158 Benchmark]: RCFGBuilder took 663.24ms. Allocated memory is still 174.1MB. Free memory was 128.4MB in the beginning and 131.7MB in the end (delta: -3.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-23 22:34:11,548 INFO L158 Benchmark]: TraceAbstraction took 733.24ms. Allocated memory is still 174.1MB. Free memory was 130.8MB in the beginning and 96.4MB in the end (delta: 34.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2023-11-23 22:34:11,549 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 174.1MB. Free memory was 96.4MB in the beginning and 96.0MB in the end (delta: 386.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:34:11,552 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 127.9MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 400.84ms. Allocated memory is still 174.1MB. Free memory was 143.6MB in the beginning and 133.9MB in the end (delta: 9.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 86.61ms. Allocated memory is still 174.1MB. Free memory was 133.9MB in the beginning and 131.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.84ms. Allocated memory is still 174.1MB. Free memory was 131.8MB in the beginning and 128.4MB in the end (delta: 3.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 663.24ms. Allocated memory is still 174.1MB. Free memory was 128.4MB in the beginning and 131.7MB in the end (delta: -3.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 733.24ms. Allocated memory is still 174.1MB. Free memory was 130.8MB in the beginning and 96.4MB in the end (delta: 34.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 174.1MB. Free memory was 96.4MB in the beginning and 96.0MB in the end (delta: 386.4kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 161]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 160, overapproximation of someUnaryDOUBLEoperation at line 54, overapproximation of someBinaryArithmeticDOUBLEoperation at line 84. Possible FailurePath: [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L39-L44] static const double atanhi_atan[] = { 4.63647609000806093515e-01, 7.85398163397448278999e-01, 9.82793723247329054082e-01, 1.57079632679489655800e+00, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L46-L51] static const double atanlo_atan[] = { 2.26987774529616870924e-17, 3.06161699786838301793e-17, 1.39033110312309984516e-17, 6.12323399573676603587e-17, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L53-L60] static const double aT_atan[] = { 3.33333333333329318027e-01, -1.99999999998764832476e-01, 1.42857142725034663711e-01, -1.11111104054623557880e-01, 9.09088713343650656196e-02, -7.69187620504482999495e-02, 6.66107313738753120669e-02, -5.83357013379057348645e-02, 4.97687799461593236017e-02, -3.65315727442169155270e-02, 1.62858201153657823623e-02, }; [L62-L64] static const double one_atan = 1.0, pi_o_4 = 7.8539816339744827900E-01, pi_o_2 = 1.5707963267948965580E+00, pi = 3.1415926535897931160E+00, huge_atan = 1.0e300; [L156] double x = -0.0; [L157] CALL, EXPR atan_double(x) [L67] double w, s1, s2, z; [L68] __int32_t ix, hx, id; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003] [L71] ieee_double_shape_type gh_u; [L72] EXPR gh_u.value = (x) [L73] EXPR gh_u.parts.msw [L73] EXPR (hx) = gh_u.parts.msw [L70-L74] { ieee_double_shape_type gh_u; gh_u.value = (x); (hx) = gh_u.parts.msw; } VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2147483647, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003] [L75] ix = hx & 0x7fffffff VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2147483647, ix=2147483647, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003] [L76] COND TRUE ix >= 0x44100000 [L77] __uint32_t low; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2147483647, ix=2147483647, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003] [L79] ieee_double_shape_type gl_u; [L80] EXPR gl_u.value = (x) [L81] EXPR gl_u.parts.lsw [L81] EXPR (low) = gl_u.parts.lsw [L78-L82] { ieee_double_shape_type gl_u; gl_u.value = (x); (low) = gl_u.parts.lsw; } VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2147483647, ix=2147483647, low=1, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003] [L83] COND TRUE ix > 0x7ff00000 || (ix == 0x7ff00000 && (low != 0)) [L84] return x + x; VAL [\old(x)=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003, aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, hx=2147483647, ix=2147483647, low=1, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003] [L157] RET, EXPR atan_double(x) [L157] double res = atan_double(x); [L160] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003] [L160] EXPR res == -0.0 && __signbit_double(res) == 1 VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000] [L160] COND TRUE !(res == -0.0 && __signbit_double(res) == 1) [L161] reach_error() VAL [aT_atan={6:0}, atanhi_atan={4:0}, atanlo_atan={5:0}, huge_atan=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, one_atan=1, pi=785398163397448279/250000000000000000, pi_o_2=785398163397448279/500000000000000000, pi_o_4=785398163397448279/1000000000000000000, res=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000002, x=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 39 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 39 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-23 22:34:11,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ --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 86f4c48bd26ce0df301001b762b320097809bf71324092596b2b5e53d7dc1a20 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:34:14,549 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:34:14,727 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-23 22:34:14,737 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:34:14,738 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:34:14,796 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:34:14,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:34:14,798 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:34:14,799 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:34:14,805 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:34:14,806 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:34:14,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:34:14,808 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:34:14,810 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:34:14,810 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:34:14,812 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:34:14,812 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:34:14,813 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:34:14,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:34:14,815 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:34:14,816 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:34:14,816 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:34:14,817 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:34:14,817 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-23 22:34:14,818 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-23 22:34:14,818 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-23 22:34:14,819 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:34:14,819 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:34:14,820 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:34:14,820 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:34:14,822 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:34:14,823 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:34:14,823 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:34:14,823 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:34:14,824 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:34:14,824 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:34:14,825 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:34:14,825 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-23 22:34:14,826 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-23 22:34:14,826 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:34:14,826 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:34:14,827 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:34:14,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:34:14,827 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:34:14,828 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-23 22:34:14,828 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86f4c48bd26ce0df301001b762b320097809bf71324092596b2b5e53d7dc1a20 [2023-11-23 22:34:15,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:34:15,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:34:15,408 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:34:15,410 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:34:15,411 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:34:15,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2023-11-23 22:34:19,103 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:34:19,447 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:34:19,447 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c [2023-11-23 22:34:19,457 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/data/28ed4bb87/c751f6d8c8194f0d9c8ebaacf9c85038/FLAG060d3a61d [2023-11-23 22:34:19,474 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/data/28ed4bb87/c751f6d8c8194f0d9c8ebaacf9c85038 [2023-11-23 22:34:19,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:34:19,480 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:34:19,482 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:34:19,482 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:34:19,490 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:34:19,491 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:19,492 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66422233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19, skipping insertion in model container [2023-11-23 22:34:19,493 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:19,527 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:34:19,766 WARN L240 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_2fc79608-2bdc-493f-a19a-1a4e96c359d9/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c[3930,3943] [2023-11-23 22:34:19,774 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:34:19,805 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:34:19,915 WARN L240 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_2fc79608-2bdc-493f-a19a-1a4e96c359d9/sv-benchmarks/c/float-newlib/double_req_bl_0620a.c[3930,3943] [2023-11-23 22:34:19,916 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:34:19,954 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:34:19,955 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19 WrapperNode [2023-11-23 22:34:19,955 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:34:19,956 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:34:19,957 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:34:19,957 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:34:19,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,001 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,057 INFO L138 Inliner]: procedures = 22, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 211 [2023-11-23 22:34:20,061 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:34:20,063 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:34:20,064 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:34:20,064 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:34:20,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,089 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,124 INFO L189 HeapSplitter]: Split 49 memory accesses to 9 slices as follows [2, 2, 7, 7, 2, 22, 2, 2, 3] [2023-11-23 22:34:20,129 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,129 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,190 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,194 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,203 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:34:20,204 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:34:20,205 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:34:20,205 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:34:20,206 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (1/1) ... [2023-11-23 22:34:20,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:34:20,243 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:34:20,264 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:34:20,317 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:34:20,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:34:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#0 [2023-11-23 22:34:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#1 [2023-11-23 22:34:20,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#2 [2023-11-23 22:34:20,336 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#3 [2023-11-23 22:34:20,337 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#4 [2023-11-23 22:34:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#5 [2023-11-23 22:34:20,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#6 [2023-11-23 22:34:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#7 [2023-11-23 22:34:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8#8 [2023-11-23 22:34:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#0 [2023-11-23 22:34:20,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#1 [2023-11-23 22:34:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#2 [2023-11-23 22:34:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#3 [2023-11-23 22:34:20,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#4 [2023-11-23 22:34:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#5 [2023-11-23 22:34:20,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#6 [2023-11-23 22:34:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#7 [2023-11-23 22:34:20,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8#8 [2023-11-23 22:34:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-23 22:34:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-23 22:34:20,344 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-23 22:34:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-23 22:34:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-23 22:34:20,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#5 [2023-11-23 22:34:20,347 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#6 [2023-11-23 22:34:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#7 [2023-11-23 22:34:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#8 [2023-11-23 22:34:20,348 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:34:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#0 [2023-11-23 22:34:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#1 [2023-11-23 22:34:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#2 [2023-11-23 22:34:20,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#3 [2023-11-23 22:34:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#4 [2023-11-23 22:34:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#5 [2023-11-23 22:34:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#6 [2023-11-23 22:34:20,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#7 [2023-11-23 22:34:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8#8 [2023-11-23 22:34:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-23 22:34:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-23 22:34:20,352 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-23 22:34:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-23 22:34:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-23 22:34:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#5 [2023-11-23 22:34:20,353 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#6 [2023-11-23 22:34:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#7 [2023-11-23 22:34:20,354 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#8 [2023-11-23 22:34:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:34:20,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:34:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-23 22:34:20,355 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-23 22:34:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-23 22:34:20,356 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-23 22:34:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-23 22:34:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#5 [2023-11-23 22:34:20,357 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#6 [2023-11-23 22:34:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#7 [2023-11-23 22:34:20,358 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#8 [2023-11-23 22:34:20,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:34:20,625 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:34:20,628 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:34:36,000 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:34:36,106 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:34:36,107 INFO L309 CfgBuilder]: Removed 10 assume(true) statements. [2023-11-23 22:34:36,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:36 BoogieIcfgContainer [2023-11-23 22:34:36,108 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:34:36,110 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:34:36,110 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:34:36,115 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:34:36,115 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:34:19" (1/3) ... [2023-11-23 22:34:36,116 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b266c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:36, skipping insertion in model container [2023-11-23 22:34:36,117 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:34:19" (2/3) ... [2023-11-23 22:34:36,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74b266c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:34:36, skipping insertion in model container [2023-11-23 22:34:36,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:34:36" (3/3) ... [2023-11-23 22:34:36,122 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_0620a.c [2023-11-23 22:34:36,142 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:34:36,143 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:34:36,203 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:34:36,212 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=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;@4c784735, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:34:36,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:34:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 32 states have internal predecessors, (54), 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) [2023-11-23 22:34:36,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-23 22:34:36,228 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:34:36,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:34:36,231 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:34:36,237 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:34:36,238 INFO L85 PathProgramCache]: Analyzing trace with hash 2077933369, now seen corresponding path program 1 times [2023-11-23 22:34:36,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:34:36,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [936769420] [2023-11-23 22:34:36,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:34:36,259 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 [2023-11-23 22:34:36,259 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:34:36,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:34:36,315 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:36,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:34:36,776 INFO L262 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 22:34:36,784 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:34:36,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:34:36,810 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:34:36,811 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:34:36,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [936769420] [2023-11-23 22:34:36,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [936769420] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:34:36,813 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:34:36,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:34:36,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090034179] [2023-11-23 22:34:36,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:34:36,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:34:36,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:34:36,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:34:36,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:34:36,896 INFO L87 Difference]: Start difference. First operand has 33 states, 31 states have (on average 1.7419354838709677) internal successors, (54), 32 states have internal predecessors, (54), 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) [2023-11-23 22:34:37,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:34:37,128 INFO L93 Difference]: Finished difference Result 65 states and 107 transitions. [2023-11-23 22:34:37,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:34:37,131 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 [2023-11-23 22:34:37,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:34:37,141 INFO L225 Difference]: With dead ends: 65 [2023-11-23 22:34:37,141 INFO L226 Difference]: Without dead ends: 31 [2023-11-23 22:34:37,146 INFO L412 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 [2023-11-23 22:34:37,151 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 22:34:37,152 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 39 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 22:34:37,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-11-23 22:34:37,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2023-11-23 22:34:37,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.3666666666666667) internal successors, (41), 30 states have internal predecessors, (41), 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) [2023-11-23 22:34:37,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 41 transitions. [2023-11-23 22:34:37,227 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 41 transitions. Word has length 10 [2023-11-23 22:34:37,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:34:37,227 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 41 transitions. [2023-11-23 22:34:37,228 INFO L496 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) [2023-11-23 22:34:37,228 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2023-11-23 22:34:37,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 22:34:37,229 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:34:37,230 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:34:37,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:37,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:37,443 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:34:37,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:34:37,444 INFO L85 PathProgramCache]: Analyzing trace with hash 174067387, now seen corresponding path program 1 times [2023-11-23 22:34:37,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:34:37,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123586822] [2023-11-23 22:34:37,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:34:37,446 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 [2023-11-23 22:34:37,446 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:34:37,449 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:34:37,484 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:34:37,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 9 conjunts are in the unsatisfiable core [2023-11-23 22:34:37,962 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:34:39,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:34:39,650 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:34:39,650 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:34:39,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123586822] [2023-11-23 22:34:39,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123586822] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:34:39,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:34:39,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:34:39,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827594098] [2023-11-23 22:34:39,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:34:39,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:34:39,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:34:39,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:34:39,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:34:39,655 INFO L87 Difference]: Start difference. First operand 31 states and 41 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2023-11-23 22:34:45,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:34:47,258 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:34:49,554 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-23 22:34:49,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:34:49,830 INFO L93 Difference]: Finished difference Result 42 states and 53 transitions. [2023-11-23 22:34:49,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-23 22:34:49,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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 [2023-11-23 22:34:49,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:34:49,831 INFO L225 Difference]: With dead ends: 42 [2023-11-23 22:34:49,832 INFO L226 Difference]: Without dead ends: 19 [2023-11-23 22:34:49,832 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:34:49,834 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 31 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:34:49,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 28 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 2 Unknown, 0 Unchecked, 9.3s Time] [2023-11-23 22:34:49,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-23 22:34:49,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-23 22:34:49,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 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) [2023-11-23 22:34:49,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-11-23 22:34:49,840 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 12 [2023-11-23 22:34:49,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:34:49,841 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-11-23 22:34:49,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2023-11-23 22:34:49,841 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-23 22:34:49,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-23 22:34:49,842 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:34:49,842 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:34:49,857 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:50,043 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:50,043 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:34:50,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:34:50,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1363944650, now seen corresponding path program 1 times [2023-11-23 22:34:50,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:34:50,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583693959] [2023-11-23 22:34:50,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:34:50,045 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 [2023-11-23 22:34:50,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:34:50,047 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:34:50,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:34:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:34:50,503 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 22:34:50,505 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:34:51,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:34:51,818 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:34:51,818 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-23 22:34:51,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583693959] [2023-11-23 22:34:51,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583693959] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:34:51,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:34:51,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 22:34:51,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128809977] [2023-11-23 22:34:51,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:34:51,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-23 22:34:51,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-23 22:34:51,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-23 22:34:51,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:34:51,822 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2023-11-23 22:34:57,333 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:34:59,385 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:35:01,436 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:35:04,070 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.63s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-23 22:35:07,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:35:09,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2023-11-23 22:35:09,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:35:09,667 INFO L93 Difference]: Finished difference Result 30 states and 31 transitions. [2023-11-23 22:35:09,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:35:09,668 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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 [2023-11-23 22:35:09,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:35:09,669 INFO L225 Difference]: With dead ends: 30 [2023-11-23 22:35:09,669 INFO L226 Difference]: Without dead ends: 27 [2023-11-23 22:35:09,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:35:09,672 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 18 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2023-11-23 22:35:09,673 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 35 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 5 Unknown, 0 Unchecked, 17.3s Time] [2023-11-23 22:35:09,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-23 22:35:09,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 21. [2023-11-23 22:35:09,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 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) [2023-11-23 22:35:09,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2023-11-23 22:35:09,683 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 12 [2023-11-23 22:35:09,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:35:09,685 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2023-11-23 22:35:09,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 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) [2023-11-23 22:35:09,686 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2023-11-23 22:35:09,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-23 22:35:09,687 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:35:09,687 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:35:09,707 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:35:09,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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 [2023-11-23 22:35:09,899 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:35:09,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:35:09,900 INFO L85 PathProgramCache]: Analyzing trace with hash 907848520, now seen corresponding path program 1 times [2023-11-23 22:35:09,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-23 22:35:09,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [789439694] [2023-11-23 22:35:09,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:35:09,901 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 [2023-11-23 22:35:09,901 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/mathsat [2023-11-23 22:35:09,906 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/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) [2023-11-23 22:35:09,922 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2fc79608-2bdc-493f-a19a-1a4e96c359d9/bin/uautomizer-verify-zZY32mL2XJ/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-23 22:35:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:35:10,404 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-23 22:35:10,407 INFO L285 TraceCheckSpWp]: Computing forward predicates...