./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl --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 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:19,377 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:19,501 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:17:19,508 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:19,509 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:19,547 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:19,549 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:19,549 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:19,550 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:19,555 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:19,556 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:19,557 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:19,557 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:19,559 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:19,559 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:17:19,560 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:17:19,560 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:17:19,560 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:17:19,561 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:19,561 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:17:19,562 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:19,562 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:17:19,563 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:17:19,563 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:17:19,564 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:19,565 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:19,565 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:19,566 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:19,566 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:19,567 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:19,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:19,568 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:17:19,568 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:17:19,569 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:17:19,569 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:19,569 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:17:19,569 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:19,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:19,570 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:19,570 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_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 [2023-11-12 02:17:19,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:19,941 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:19,944 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:19,945 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:19,946 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:19,947 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2023-11-12 02:17:23,012 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:23,306 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:23,311 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2023-11-12 02:17:23,323 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/data/f21cc6fe5/7b9d329337214b80a045b75431a3d014/FLAG0f074af4c [2023-11-12 02:17:23,341 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/data/f21cc6fe5/7b9d329337214b80a045b75431a3d014 [2023-11-12 02:17:23,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:23,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:23,354 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:23,355 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:23,360 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:23,361 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,362 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@731312ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23, skipping insertion in model container [2023-11-12 02:17:23,362 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,406 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:23,616 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_2cf01eb0-797f-4d01-bd3d-f1a717d03357/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2023-11-12 02:17:23,629 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:23,641 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:17:23,686 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_2cf01eb0-797f-4d01-bd3d-f1a717d03357/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2023-11-12 02:17:23,687 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:23,703 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:17:23,703 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23 WrapperNode [2023-11-12 02:17:23,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:23,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:23,705 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:17:23,705 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:17:23,714 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,727 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,777 INFO L138 Inliner]: procedures = 18, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 430 [2023-11-12 02:17:23,777 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:23,778 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:17:23,778 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:17:23,778 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:17:23,789 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,796 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,797 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,819 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,851 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,861 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:17:23,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:17:23,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:17:23,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:17:23,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (1/1) ... [2023-11-12 02:17:23,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:23,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:23,927 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:17:23,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:17:23,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:17:23,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:17:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:17:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:17:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2023-11-12 02:17:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-12 02:17:23,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:17:23,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:17:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:17:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2023-11-12 02:17:23,995 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:17:24,095 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:17:24,098 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:17:24,911 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:17:24,919 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:17:24,919 INFO L302 CfgBuilder]: Removed 14 assume(true) statements. [2023-11-12 02:17:24,921 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:24 BoogieIcfgContainer [2023-11-12 02:17:24,922 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:17:24,924 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:17:24,925 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:17:24,928 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:17:24,928 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:17:23" (1/3) ... [2023-11-12 02:17:24,929 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49508f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:24, skipping insertion in model container [2023-11-12 02:17:24,929 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:23" (2/3) ... [2023-11-12 02:17:24,930 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49508f78 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:24, skipping insertion in model container [2023-11-12 02:17:24,930 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:24" (3/3) ... [2023-11-12 02:17:24,931 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2023-11-12 02:17:24,952 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:17:24,952 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:17:25,007 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:25,014 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;@67d2f144, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:25,014 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:17:25,020 INFO L276 IsEmpty]: Start isEmpty. Operand has 119 states, 117 states have (on average 1.7606837606837606) internal successors, (206), 118 states have internal predecessors, (206), 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) [2023-11-12 02:17:25,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:17:25,027 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:25,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:25,029 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:25,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:25,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1639064733, now seen corresponding path program 1 times [2023-11-12 02:17:25,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:25,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350364210] [2023-11-12 02:17:25,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:25,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:25,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:25,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350364210] [2023-11-12 02:17:25,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350364210] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:25,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:25,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:25,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838768699] [2023-11-12 02:17:25,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:25,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:25,240 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:25,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:25,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:25,279 INFO L87 Difference]: Start difference. First operand has 119 states, 117 states have (on average 1.7606837606837606) internal successors, (206), 118 states have internal predecessors, (206), 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 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2023-11-12 02:17:25,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:25,315 INFO L93 Difference]: Finished difference Result 236 states and 410 transitions. [2023-11-12 02:17:25,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:25,318 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 15 [2023-11-12 02:17:25,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:25,329 INFO L225 Difference]: With dead ends: 236 [2023-11-12 02:17:25,330 INFO L226 Difference]: Without dead ends: 116 [2023-11-12 02:17:25,333 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 [2023-11-12 02:17:25,338 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:25,339 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:25,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2023-11-12 02:17:25,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2023-11-12 02:17:25,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 1.617391304347826) internal successors, (186), 115 states have internal predecessors, (186), 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) [2023-11-12 02:17:25,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 186 transitions. [2023-11-12 02:17:25,406 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 186 transitions. Word has length 15 [2023-11-12 02:17:25,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:25,408 INFO L495 AbstractCegarLoop]: Abstraction has 116 states and 186 transitions. [2023-11-12 02:17:25,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2023-11-12 02:17:25,408 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 186 transitions. [2023-11-12 02:17:25,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:17:25,411 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:25,412 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:25,412 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:17:25,412 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:25,413 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash 293310406, now seen corresponding path program 1 times [2023-11-12 02:17:25,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:25,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311234706] [2023-11-12 02:17:25,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:25,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:25,567 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:17:25,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:17:25,670 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:17:25,672 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:17:25,674 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:17:25,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:17:25,680 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-12 02:17:25,684 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:17:25,719 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-12 02:17:25,721 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated [2023-11-12 02:17:25,722 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated [2023-11-12 02:17:25,745 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:17:25 BoogieIcfgContainer [2023-11-12 02:17:25,745 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:17:25,746 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:17:25,746 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:17:25,746 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:17:25,747 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:24" (3/4) ... [2023-11-12 02:17:25,752 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:17:25,753 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:17:25,754 INFO L158 Benchmark]: Toolchain (without parser) took 2403.29ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 73.7MB in the beginning and 91.5MB in the end (delta: -17.9MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2023-11-12 02:17:25,755 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:17:25,759 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.80ms. Allocated memory is still 113.2MB. Free memory was 73.4MB in the beginning and 59.3MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:17:25,760 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.69ms. Allocated memory is still 113.2MB. Free memory was 59.3MB in the beginning and 55.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-12 02:17:25,764 INFO L158 Benchmark]: Boogie Preprocessor took 91.41ms. Allocated memory is still 113.2MB. Free memory was 55.7MB in the beginning and 53.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:17:25,764 INFO L158 Benchmark]: RCFGBuilder took 1051.59ms. Allocated memory is still 113.2MB. Free memory was 53.1MB in the beginning and 53.5MB in the end (delta: -397.3kB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-12 02:17:25,765 INFO L158 Benchmark]: TraceAbstraction took 820.65ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 52.9MB in the beginning and 91.8MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:17:25,766 INFO L158 Benchmark]: Witness Printer took 7.62ms. Allocated memory is still 146.8MB. Free memory was 91.8MB in the beginning and 91.5MB in the end (delta: 299.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:17:25,774 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 113.2MB. Free memory is still 86.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.80ms. Allocated memory is still 113.2MB. Free memory was 73.4MB in the beginning and 59.3MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.69ms. Allocated memory is still 113.2MB. Free memory was 59.3MB in the beginning and 55.7MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.41ms. Allocated memory is still 113.2MB. Free memory was 55.7MB in the beginning and 53.1MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1051.59ms. Allocated memory is still 113.2MB. Free memory was 53.1MB in the beginning and 53.5MB in the end (delta: -397.3kB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * TraceAbstraction took 820.65ms. Allocated memory was 113.2MB in the beginning and 146.8MB in the end (delta: 33.6MB). Free memory was 52.9MB in the beginning and 91.8MB in the end (delta: -38.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 7.62ms. Allocated memory is still 146.8MB. Free memory was 91.8MB in the beginning and 91.5MB in the end (delta: 299.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet9 could not be translated - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 178]: 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 18, overapproximation of someUnaryDOUBLEoperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 47. Possible FailurePath: [L20-L23] static const double one_fmod = 1.0, Zero_fmod[] = { 0.0, -0.0, }; VAL [Zero_fmod={4:0}, one_fmod=1] [L172] double x = 1.0 / 0.0; [L173] double y = __VERIFIER_nondet_double(); [L174] CALL, EXPR fmod_double(x, y) [L26] __int32_t n, hx, hy, hz, ix, iy, sx, i; [L27] __uint32_t lx, ly, lz; VAL [Zero_fmod={4:0}, \old(x)=4294967310, \old(y)=4294967309, one_fmod=1, x=4294967310, y=4294967309] [L30] ieee_double_shape_type ew_u; [L31] EXPR ew_u.value = (x) [L32] EXPR ew_u.parts.msw [L32] EXPR (hx) = ew_u.parts.msw [L33] EXPR ew_u.parts.lsw [L33] EXPR (lx) = ew_u.parts.lsw [L29-L34] { ieee_double_shape_type ew_u; ew_u.value = (x); (hx) = ew_u.parts.msw; (lx) = ew_u.parts.lsw; } VAL [Zero_fmod={4:0}, \old(x)=4294967310, \old(y)=4294967309, hx=0, lx=4294967297, one_fmod=1, x=4294967310, y=4294967309] [L36] ieee_double_shape_type ew_u; [L37] EXPR ew_u.value = (y) [L38] EXPR ew_u.parts.msw [L38] EXPR (hy) = ew_u.parts.msw [L39] EXPR ew_u.parts.lsw [L39] EXPR (ly) = ew_u.parts.lsw [L35-L40] { ieee_double_shape_type ew_u; ew_u.value = (y); (hy) = ew_u.parts.msw; (ly) = ew_u.parts.lsw; } VAL [Zero_fmod={4:0}, \old(x)=4294967310, \old(y)=4294967309, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, x=4294967310, y=4294967309] [L41] sx = hx & 0x80000000 VAL [Zero_fmod={4:0}, \old(x)=4294967310, \old(y)=4294967309, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967310, y=4294967309] [L42] hx ^= sx [L43] hy &= 0x7fffffff VAL [Zero_fmod={4:0}, \old(x)=4294967310, \old(y)=4294967309, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967310, y=4294967309] [L45] EXPR hy | ly VAL [Zero_fmod={4:0}, \old(x)=4294967310, \old(y)=4294967309, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967310, y=4294967309] [L45-L46] (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) VAL [Zero_fmod={4:0}, \old(x)=4294967310, \old(y)=4294967309, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967310, y=4294967309] [L45-L46] COND TRUE (hy | ly) == 0 || (hx >= 0x7ff00000) || ((hy | ((ly | -ly) >> 31)) > 0x7ff00000) [L47] return (x * y) / (x * y); VAL [Zero_fmod={4:0}, \old(x)=4294967310, \old(y)=4294967309, hx=0, hy=0, lx=4294967297, ly=0, one_fmod=1, sx=0, x=4294967310, y=4294967309] [L174] RET, EXPR fmod_double(x, y) [L174] double res = fmod_double(x, y); [L177] CALL, EXPR isnan_double(res) [L18] return x != x; VAL [Zero_fmod={4:0}, \old(x)=4294967308, \result=0, one_fmod=1, x=4294967308] [L177] RET, EXPR isnan_double(res) [L177] COND TRUE !isnan_double(res) [L178] reach_error() VAL [Zero_fmod={4:0}, one_fmod=1, res=4294967308, x=4294967310, y=4294967309] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 119 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 189 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 189 mSDtfsCounter, 0 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=119occurred 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, 32 NumberOfCodeBlocks, 32 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 [2023-11-12 02:17:25,808 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl --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 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:28,481 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:28,623 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:17:28,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:28,633 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:28,675 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:28,675 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:28,676 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:28,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:28,684 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:28,685 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:28,685 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:28,686 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:28,688 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:28,689 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:17:28,689 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:17:28,689 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:17:28,690 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:28,690 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:17:28,691 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:28,691 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:17:28,691 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:17:28,692 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:17:28,692 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:17:28,693 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:17:28,693 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:17:28,693 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:28,694 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:28,694 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:28,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:28,696 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:28,696 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:28,696 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:28,697 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:17:28,697 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:17:28,697 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:17:28,698 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:28,698 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:17:28,698 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:28,699 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:28,699 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:17:28,700 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:28,700 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_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24b3922e2a9fa0940bc8d5e86bcca27d213def602624d293b414752eb2484499 [2023-11-12 02:17:29,083 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:29,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:29,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:29,116 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:29,116 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:29,118 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2023-11-12 02:17:32,209 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:32,503 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:32,504 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c [2023-11-12 02:17:32,515 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/data/ad09bf1cf/1df8068b6a6842c58504801a7f6439d5/FLAGae0495b20 [2023-11-12 02:17:32,530 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/data/ad09bf1cf/1df8068b6a6842c58504801a7f6439d5 [2023-11-12 02:17:32,533 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:32,534 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:32,535 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:32,535 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:32,541 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:32,542 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:32,543 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f8131d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32, skipping insertion in model container [2023-11-12 02:17:32,543 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:32,587 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:32,809 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_2cf01eb0-797f-4d01-bd3d-f1a717d03357/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2023-11-12 02:17:32,820 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:32,836 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:17:32,880 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_2cf01eb0-797f-4d01-bd3d-f1a717d03357/sv-benchmarks/c/float-newlib/double_req_bl_1122a.c[3905,3918] [2023-11-12 02:17:32,881 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:32,911 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:17:32,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32 WrapperNode [2023-11-12 02:17:32,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:32,913 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:32,914 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:17:32,914 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:17:32,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:32,938 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:32,984 INFO L138 Inliner]: procedures = 21, calls = 35, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 228 [2023-11-12 02:17:32,985 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:32,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:17:32,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:17:32,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:17:32,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:32,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:33,003 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:33,003 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:33,017 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:33,024 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:33,027 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:33,030 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:33,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:17:33,037 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:17:33,037 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:17:33,037 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:17:33,038 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (1/1) ... [2023-11-12 02:17:33,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:33,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:33,087 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:17:33,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:17:33,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:17:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2023-11-12 02:17:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-12 02:17:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:17:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:17:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE8 [2023-11-12 02:17:33,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:17:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:17:33,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:17:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2023-11-12 02:17:33,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:17:33,220 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:17:33,222 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:17:38,528 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:17:38,534 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:17:38,535 INFO L302 CfgBuilder]: Removed 14 assume(true) statements. [2023-11-12 02:17:38,536 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:38 BoogieIcfgContainer [2023-11-12 02:17:38,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:17:38,542 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:17:38,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:17:38,546 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:17:38,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:17:32" (1/3) ... [2023-11-12 02:17:38,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b86cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:38, skipping insertion in model container [2023-11-12 02:17:38,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:32" (2/3) ... [2023-11-12 02:17:38,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16b86cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:38, skipping insertion in model container [2023-11-12 02:17:38,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:38" (3/3) ... [2023-11-12 02:17:38,550 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1122a.c [2023-11-12 02:17:38,567 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:17:38,567 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:17:38,624 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:38,630 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;@2b6d67fe, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:38,630 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:17:38,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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) [2023-11-12 02:17:38,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-12 02:17:38,640 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:38,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:38,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:38,646 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:38,647 INFO L85 PathProgramCache]: Analyzing trace with hash 668833300, now seen corresponding path program 1 times [2023-11-12 02:17:38,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:17:38,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [972635241] [2023-11-12 02:17:38,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:38,657 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 [2023-11-12 02:17:38,658 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:17:38,659 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:17:38,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:17:39,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:39,784 INFO L262 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:17:39,788 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:39,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:39,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:39,806 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:17:39,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [972635241] [2023-11-12 02:17:39,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [972635241] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:39,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:39,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:39,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146338263] [2023-11-12 02:17:39,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:39,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:17:39,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:17:39,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:17:39,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:17:39,846 INFO L87 Difference]: Start difference. First operand has 55 states, 53 states have (on average 1.8113207547169812) internal successors, (96), 54 states have internal predecessors, (96), 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) [2023-11-12 02:17:39,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:39,871 INFO L93 Difference]: Finished difference Result 108 states and 190 transitions. [2023-11-12 02:17:39,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:17:39,874 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 [2023-11-12 02:17:39,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:39,884 INFO L225 Difference]: With dead ends: 108 [2023-11-12 02:17:39,885 INFO L226 Difference]: Without dead ends: 52 [2023-11-12 02:17:39,888 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 [2023-11-12 02:17:39,892 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:39,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:39,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2023-11-12 02:17:39,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2023-11-12 02:17:39,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 51 states have internal predecessors, (78), 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) [2023-11-12 02:17:39,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 78 transitions. [2023-11-12 02:17:39,932 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 78 transitions. Word has length 10 [2023-11-12 02:17:39,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:39,933 INFO L495 AbstractCegarLoop]: Abstraction has 52 states and 78 transitions. [2023-11-12 02:17:39,933 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) [2023-11-12 02:17:39,933 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 78 transitions. [2023-11-12 02:17:39,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 02:17:39,934 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:39,934 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:39,969 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-12 02:17:40,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:17:40,150 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:17:40,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:40,151 INFO L85 PathProgramCache]: Analyzing trace with hash 133394385, now seen corresponding path program 1 times [2023-11-12 02:17:40,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:17:40,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710765501] [2023-11-12 02:17:40,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:40,152 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 [2023-11-12 02:17:40,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:17:40,154 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/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) [2023-11-12 02:17:40,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2cf01eb0-797f-4d01-bd3d-f1a717d03357/bin/uautomizer-verify-uTZkv6EMXl/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 [2023-11-12 02:17:41,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:41,224 INFO L262 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-12 02:17:41,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:18:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:18:01,196 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:18:01,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:18:01,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710765501] [2023-11-12 02:18:01,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1710765501] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:18:01,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:18:01,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-12 02:18:01,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1132657441] [2023-11-12 02:18:01,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:18:01,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:18:01,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:18:01,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:18:01,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:18:01,201 INFO L87 Difference]: Start difference. First operand 52 states and 78 transitions. Second operand has 7 states, 7 states have (on average 1.7142857142857142) internal successors, (12), 6 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:18:06,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.43s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:18:08,086 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.68s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-12 02:18:18,741 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:18:28,718 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.85s for a HTC check with result INVALID. Formula has sorts [Bool, RoundingMode, FloatingPoint, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]