./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cf1a7837 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_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 70dcbfd71e657ebb73c2a6863351c66fa81e26e34ca397217ae05e2d3c176a8d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:12:31,744 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:12:31,835 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-12 02:12:31,841 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:12:31,842 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:12:31,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:12:31,867 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:12:31,868 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:12:31,869 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:12:31,869 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:12:31,870 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:12:31,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:12:31,871 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:12:31,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:12:31,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:12:31,873 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:12:31,873 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:12:31,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:12:31,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:12:31,875 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:12:31,875 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:12:31,876 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:12:31,876 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:12:31,877 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:12:31,877 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:12:31,878 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:12:31,878 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:12:31,878 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:12:31,879 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:12:31,879 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:12:31,879 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:12:31,880 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:12:31,880 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:12:31,880 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:12:31,881 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:12:31,881 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:12:31,881 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:12:31,881 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:12:31,882 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:12:31,882 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_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70dcbfd71e657ebb73c2a6863351c66fa81e26e34ca397217ae05e2d3c176a8d [2023-11-12 02:12:32,165 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:12:32,195 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:12:32,198 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:12:32,199 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:12:32,200 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:12:32,201 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2023-11-12 02:12:35,395 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:12:35,625 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:12:35,625 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2023-11-12 02:12:35,633 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/data/c7d6c1507/bc4eba67423f4781a0049c9a8a86c8cb/FLAG6064958f4 [2023-11-12 02:12:35,648 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/data/c7d6c1507/bc4eba67423f4781a0049c9a8a86c8cb [2023-11-12 02:12:35,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:12:35,653 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:12:35,655 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:35,655 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:12:35,661 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:12:35,662 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:35,664 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cc52813 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35, skipping insertion in model container [2023-11-12 02:12:35,664 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:35,691 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:12:35,904 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_8c660459-689c-4cf3-8a1e-c220dfdb7e41/sv-benchmarks/c/float-newlib/double_req_bl_1300.c[1563,1576] [2023-11-12 02:12:35,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:35,922 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:12:35,947 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_8c660459-689c-4cf3-8a1e-c220dfdb7e41/sv-benchmarks/c/float-newlib/double_req_bl_1300.c[1563,1576] [2023-11-12 02:12:35,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:35,964 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:12:35,964 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35 WrapperNode [2023-11-12 02:12:35,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:35,966 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:35,966 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:12:35,966 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:12:35,974 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:35,983 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:36,020 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 107 [2023-11-12 02:12:36,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:36,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:12:36,021 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:12:36,021 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:12:36,035 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:36,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:36,038 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:36,039 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:36,046 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:36,053 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:36,055 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:36,057 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:36,060 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:12:36,061 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:12:36,061 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:12:36,061 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:12:36,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (1/1) ... [2023-11-12 02:12:36,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:12:36,099 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:12:36,113 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:12:36,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:12:36,150 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:12:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:12:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:12:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2023-11-12 02:12:36,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:12:36,151 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:12:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:12:36,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:12:36,228 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:12:36,230 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:12:36,475 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:12:36,481 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:12:36,481 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:12:36,483 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:36 BoogieIcfgContainer [2023-11-12 02:12:36,483 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:12:36,486 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:12:36,486 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:12:36,496 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:12:36,496 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:12:35" (1/3) ... [2023-11-12 02:12:36,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683f3684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:12:36, skipping insertion in model container [2023-11-12 02:12:36,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:35" (2/3) ... [2023-11-12 02:12:36,497 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@683f3684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:12:36, skipping insertion in model container [2023-11-12 02:12:36,497 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:36" (3/3) ... [2023-11-12 02:12:36,498 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300.c [2023-11-12 02:12:36,516 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:12:36,517 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:12:36,585 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:12:36,593 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;@11b615ad, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:12:36,593 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:12:36,601 INFO L276 IsEmpty]: Start isEmpty. Operand has 28 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 27 states have internal predecessors, (40), 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 02:12:36,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-12 02:12:36,634 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:36,635 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 02:12:36,636 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:36,655 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:36,656 INFO L85 PathProgramCache]: Analyzing trace with hash -507055116, now seen corresponding path program 1 times [2023-11-12 02:12:36,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:36,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175735467] [2023-11-12 02:12:36,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:36,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:36,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:36,888 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 02:12:36,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:36,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175735467] [2023-11-12 02:12:36,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175735467] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:36,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:36,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:12:36,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604099617] [2023-11-12 02:12:36,892 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:36,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:12:36,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:36,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:12:36,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:12:36,943 INFO L87 Difference]: Start difference. First operand has 28 states, 26 states have (on average 1.5384615384615385) internal successors, (40), 27 states have internal predecessors, (40), 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 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 02:12:36,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:36,963 INFO L93 Difference]: Finished difference Result 54 states and 78 transitions. [2023-11-12 02:12:36,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:12:36,965 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 17 [2023-11-12 02:12:36,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:36,971 INFO L225 Difference]: With dead ends: 54 [2023-11-12 02:12:36,971 INFO L226 Difference]: Without dead ends: 24 [2023-11-12 02:12:36,974 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 02:12:36,978 INFO L413 NwaCegarLoop]: 35 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, 35 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 02:12:36,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:36,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-12 02:12:37,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-12 02:12:37,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.3043478260869565) internal successors, (30), 23 states have internal predecessors, (30), 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 02:12:37,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 30 transitions. [2023-11-12 02:12:37,006 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 30 transitions. Word has length 17 [2023-11-12 02:12:37,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:37,006 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 30 transitions. [2023-11-12 02:12:37,007 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 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 02:12:37,007 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 30 transitions. [2023-11-12 02:12:37,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-12 02:12:37,008 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:37,008 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:37,008 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:12:37,009 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:37,009 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:37,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1947513821, now seen corresponding path program 1 times [2023-11-12 02:12:37,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:37,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99630810] [2023-11-12 02:12:37,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:37,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:37,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:37,241 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 02:12:37,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:37,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99630810] [2023-11-12 02:12:37,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99630810] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:37,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:37,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:12:37,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587170762] [2023-11-12 02:12:37,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:37,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:12:37,244 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:37,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:12:37,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:37,246 INFO L87 Difference]: Start difference. First operand 24 states and 30 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:37,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:37,274 INFO L93 Difference]: Finished difference Result 32 states and 37 transitions. [2023-11-12 02:12:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:12:37,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2023-11-12 02:12:37,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:37,276 INFO L225 Difference]: With dead ends: 32 [2023-11-12 02:12:37,277 INFO L226 Difference]: Without dead ends: 24 [2023-11-12 02:12:37,278 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:37,280 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:37,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:37,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-12 02:12:37,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-12 02:12:37,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 23 states have internal predecessors, (29), 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 02:12:37,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2023-11-12 02:12:37,286 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 19 [2023-11-12 02:12:37,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:37,286 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2023-11-12 02:12:37,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:37,286 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2023-11-12 02:12:37,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-11-12 02:12:37,287 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:37,287 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:37,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-12 02:12:37,288 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:37,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:37,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1450292780, now seen corresponding path program 1 times [2023-11-12 02:12:37,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:37,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041079531] [2023-11-12 02:12:37,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:37,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:37,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:37,762 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 02:12:37,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:12:37,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041079531] [2023-11-12 02:12:37,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041079531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:37,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:37,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:12:37,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964209208] [2023-11-12 02:12:37,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:37,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:12:37,768 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:12:37,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:12:37,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:12:37,771 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:37,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:37,859 INFO L93 Difference]: Finished difference Result 41 states and 47 transitions. [2023-11-12 02:12:37,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:12:37,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2023-11-12 02:12:37,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:37,860 INFO L225 Difference]: With dead ends: 41 [2023-11-12 02:12:37,861 INFO L226 Difference]: Without dead ends: 29 [2023-11-12 02:12:37,861 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:12:37,862 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:37,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 63 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:12:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-12 02:12:37,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2023-11-12 02:12:37,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 26 states have internal predecessors, (32), 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 02:12:37,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2023-11-12 02:12:37,869 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 20 [2023-11-12 02:12:37,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:37,871 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2023-11-12 02:12:37,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:37,872 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2023-11-12 02:12:37,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2023-11-12 02:12:37,874 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:37,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:37,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:12:37,875 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:37,876 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:37,878 INFO L85 PathProgramCache]: Analyzing trace with hash -868322134, now seen corresponding path program 1 times [2023-11-12 02:12:37,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:12:37,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504458786] [2023-11-12 02:12:37,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:37,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:12:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:37,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-12 02:12:38,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-12 02:12:38,063 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-12 02:12:38,063 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-12 02:12:38,064 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:12:38,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-12 02:12:38,071 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-12 02:12:38,075 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-11-12 02:12:38,102 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet6 could not be translated [2023-11-12 02:12:38,103 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated [2023-11-12 02:12:38,103 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated [2023-11-12 02:12:38,104 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated [2023-11-12 02:12:38,105 WARN L1567 BoogieBacktranslator]: Unfinished Backtranslation: IdentifierExpression #t~short13 could not be translated [2023-11-12 02:12:38,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 02:12:38 BoogieIcfgContainer [2023-11-12 02:12:38,127 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-12 02:12:38,128 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-12 02:12:38,128 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-12 02:12:38,128 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-12 02:12:38,129 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:36" (3/4) ... [2023-11-12 02:12:38,133 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-12 02:12:38,134 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-12 02:12:38,135 INFO L158 Benchmark]: Toolchain (without parser) took 2482.19ms. Allocated memory is still 159.4MB. Free memory was 115.7MB in the beginning and 112.2MB in the end (delta: 3.5MB). Peak memory consumption was 3.8MB. Max. memory is 16.1GB. [2023-11-12 02:12:38,136 INFO L158 Benchmark]: CDTParser took 0.46ms. Allocated memory is still 111.1MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:12:38,136 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.17ms. Allocated memory is still 159.4MB. Free memory was 115.4MB in the beginning and 104.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-12 02:12:38,140 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.48ms. Allocated memory is still 159.4MB. Free memory was 104.4MB in the beginning and 102.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:12:38,140 INFO L158 Benchmark]: Boogie Preprocessor took 39.25ms. Allocated memory is still 159.4MB. Free memory was 102.5MB in the beginning and 101.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-12 02:12:38,142 INFO L158 Benchmark]: RCFGBuilder took 422.37ms. Allocated memory is still 159.4MB. Free memory was 101.0MB in the beginning and 86.7MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-12 02:12:38,143 INFO L158 Benchmark]: TraceAbstraction took 1641.35ms. Allocated memory is still 159.4MB. Free memory was 86.1MB in the beginning and 112.2MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:12:38,143 INFO L158 Benchmark]: Witness Printer took 6.94ms. Allocated memory is still 159.4MB. Free memory is still 112.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-12 02:12:38,146 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46ms. Allocated memory is still 111.1MB. Free memory is still 60.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.17ms. Allocated memory is still 159.4MB. Free memory was 115.4MB in the beginning and 104.4MB in the end (delta: 11.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.48ms. Allocated memory is still 159.4MB. Free memory was 104.4MB in the beginning and 102.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.25ms. Allocated memory is still 159.4MB. Free memory was 102.5MB in the beginning and 101.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 422.37ms. Allocated memory is still 159.4MB. Free memory was 101.0MB in the beginning and 86.7MB in the end (delta: 14.3MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1641.35ms. Allocated memory is still 159.4MB. Free memory was 86.1MB in the beginning and 112.2MB in the end (delta: -26.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.94ms. Allocated memory is still 159.4MB. Free memory is still 112.2MB. 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~nondet6 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~nondet8 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret11 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~ret12 could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IdentifierExpression #t~short13 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: 61]: 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 60, overapproximation of bitwiseOr at line 29, overapproximation of to_real at line 57. Possible FailurePath: [L52] double x = __VERIFIER_nondet_double(); [L55] CALL, EXPR isinf_double(x) [L19] __int32_t hx, lx; VAL [\old(x)=4294967308, x=4294967308] [L21] ieee_double_shape_type ew_u; [L22] EXPR ew_u.value = (x) [L23] EXPR ew_u.parts.msw [L23] EXPR (hx) = ew_u.parts.msw [L24] EXPR ew_u.parts.lsw [L24] EXPR (lx) = ew_u.parts.lsw [L20-L25] { ieee_double_shape_type ew_u; ew_u.value = (x); (hx) = ew_u.parts.msw; (lx) = ew_u.parts.lsw; } VAL [\old(x)=4294967308, hx=0, lx=0, x=4294967308] [L26] hx &= 0x7fffffff VAL [\old(x)=4294967308, hx=0, lx=0, x=4294967308] [L27] EXPR lx | (-lx) VAL [\old(x)=4294967308, hx=0, lx=0, x=4294967308] [L27] hx |= (__uint32_t)(lx | (-lx)) >> 31 [L28] hx = 0x7ff00000 - hx VAL [\old(x)=4294967308, hx=2146435072, lx=0, x=4294967308] [L29] EXPR hx | (-hx) VAL [\old(x)=4294967308, hx=2146435072, lx=0, x=4294967308] [L29] return 1 - (int)((__uint32_t)(hx | (-hx)) >> 31); [L55] RET, EXPR isinf_double(x) [L55] !isinf_double(x) && !isnan_double(x) [L55] CALL, EXPR isnan_double(x) [L33] return x != x; VAL [\old(x)=4294967308, \result=0, x=4294967308] [L55] RET, EXPR isnan_double(x) [L55] !isinf_double(x) && !isnan_double(x) VAL [x=4294967308] [L55] COND TRUE !isinf_double(x) && !isnan_double(x) [L57] CALL, EXPR isfinite_double(x) [L36] __int32_t hx; VAL [\old(x)=4294967308, x=4294967308] [L38] ieee_double_shape_type gh_u; [L39] EXPR gh_u.value = (x) [L40] EXPR gh_u.parts.msw [L40] EXPR (hx) = gh_u.parts.msw [L37-L41] { ieee_double_shape_type gh_u; gh_u.value = (x); (hx) = gh_u.parts.msw; } VAL [\old(x)=4294967308, hx=0, x=4294967308] [L42] return (int)((__uint32_t)((hx & 0x7fffffff) - 0x7ff00000) >> 31); VAL [\old(x)=4294967308, \result=1, hx=0, x=4294967308] [L57] RET, EXPR isfinite_double(x) [L57] double res = isfinite_double(x); [L60] COND TRUE res == 0.0 VAL [x=4294967308] [L61] reach_error() VAL [x=4294967308] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 28 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3 mSDsluCounter, 152 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 28 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 91 mSDtfsCounter, 28 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=28occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 70 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2023-11-12 02:12:38,178 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 70dcbfd71e657ebb73c2a6863351c66fa81e26e34ca397217ae05e2d3c176a8d --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:12:40,841 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:12:40,925 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-12 02:12:40,931 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:12:40,932 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:12:40,960 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:12:40,961 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:12:40,962 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:12:40,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:12:40,964 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:12:40,965 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:12:40,965 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:12:40,966 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:12:40,966 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:12:40,967 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:12:40,968 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-12 02:12:40,972 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-12 02:12:40,973 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:12:40,973 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:12:40,974 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:12:40,975 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:12:40,976 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-12 02:12:40,976 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-12 02:12:40,977 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-12 02:12:40,977 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-12 02:12:40,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:12:40,978 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:12:40,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:12:40,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:12:40,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:12:40,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:12:40,981 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:12:40,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:12:40,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:12:40,982 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-12 02:12:40,983 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-12 02:12:40,983 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:12:40,983 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:12:40,984 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:12:40,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:12:40,985 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-12 02:12:40,986 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:12:40,986 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_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 70dcbfd71e657ebb73c2a6863351c66fa81e26e34ca397217ae05e2d3c176a8d [2023-11-12 02:12:41,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:12:41,421 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:12:41,426 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:12:41,427 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:12:41,427 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:12:41,429 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2023-11-12 02:12:44,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:12:44,842 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:12:44,852 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/sv-benchmarks/c/float-newlib/double_req_bl_1300.c [2023-11-12 02:12:44,862 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/data/035afac4a/896658a3b8c041b3a376019ddce2006f/FLAG5863939b3 [2023-11-12 02:12:44,884 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/data/035afac4a/896658a3b8c041b3a376019ddce2006f [2023-11-12 02:12:44,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:12:44,894 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:12:44,898 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:44,898 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:12:44,904 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:12:44,906 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:44" (1/1) ... [2023-11-12 02:12:44,908 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a41b050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:44, skipping insertion in model container [2023-11-12 02:12:44,908 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:12:44" (1/1) ... [2023-11-12 02:12:44,934 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:12:45,192 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_8c660459-689c-4cf3-8a1e-c220dfdb7e41/sv-benchmarks/c/float-newlib/double_req_bl_1300.c[1563,1576] [2023-11-12 02:12:45,199 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:45,216 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:12:45,253 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_8c660459-689c-4cf3-8a1e-c220dfdb7e41/sv-benchmarks/c/float-newlib/double_req_bl_1300.c[1563,1576] [2023-11-12 02:12:45,257 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:12:45,280 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:12:45,280 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45 WrapperNode [2023-11-12 02:12:45,281 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:12:45,282 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:45,282 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:12:45,283 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:12:45,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (1/1) ... [2023-11-12 02:12:45,315 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (1/1) ... [2023-11-12 02:12:45,345 INFO L138 Inliner]: procedures = 21, calls = 19, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 77 [2023-11-12 02:12:45,346 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:12:45,347 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:12:45,347 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:12:45,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:12:45,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (1/1) ... [2023-11-12 02:12:45,358 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (1/1) ... [2023-11-12 02:12:45,369 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (1/1) ... [2023-11-12 02:12:45,370 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (1/1) ... [2023-11-12 02:12:45,384 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (1/1) ... [2023-11-12 02:12:45,389 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (1/1) ... [2023-11-12 02:12:45,392 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (1/1) ... [2023-11-12 02:12:45,399 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (1/1) ... [2023-11-12 02:12:45,403 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:12:45,406 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:12:45,407 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:12:45,407 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:12:45,408 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (1/1) ... [2023-11-12 02:12:45,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:12:45,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:12:45,442 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:12:45,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:12:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:12:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2023-11-12 02:12:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2023-11-12 02:12:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:12:45,491 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2023-11-12 02:12:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:12:45,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:12:45,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:12:45,611 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:12:45,613 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:12:46,633 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:12:46,639 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:12:46,640 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-12 02:12:46,642 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:46 BoogieIcfgContainer [2023-11-12 02:12:46,642 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:12:46,644 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:12:46,645 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:12:46,648 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:12:46,648 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:12:44" (1/3) ... [2023-11-12 02:12:46,649 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed0f8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:12:46, skipping insertion in model container [2023-11-12 02:12:46,649 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:12:45" (2/3) ... [2023-11-12 02:12:46,650 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ed0f8bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:12:46, skipping insertion in model container [2023-11-12 02:12:46,650 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:12:46" (3/3) ... [2023-11-12 02:12:46,652 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1300.c [2023-11-12 02:12:46,672 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:12:46,672 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-12 02:12:46,721 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:12:46,728 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;@211c3136, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:12:46,729 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-12 02:12:46,748 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 19 states have internal predecessors, (26), 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 02:12:46,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-12 02:12:46,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:46,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:46,761 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:46,770 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:46,771 INFO L85 PathProgramCache]: Analyzing trace with hash 1033094394, now seen corresponding path program 1 times [2023-11-12 02:12:46,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:12:46,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [529169869] [2023-11-12 02:12:46,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:46,787 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 02:12:46,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:12:46,796 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 02:12:46,798 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 02:12:46,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:46,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 29 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-12 02:12:46,890 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:12:46,910 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 02:12:46,911 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:12:46,911 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:12:46,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [529169869] [2023-11-12 02:12:46,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [529169869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:46,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:46,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:12:46,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885078089] [2023-11-12 02:12:46,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:46,920 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-12 02:12:46,920 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:12:46,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-12 02:12:46,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-12 02:12:46,954 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 19 states have internal predecessors, (26), 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 6.0) internal successors, (12), 2 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 02:12:46,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:46,970 INFO L93 Difference]: Finished difference Result 38 states and 50 transitions. [2023-11-12 02:12:46,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-12 02:12:46,974 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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 [2023-11-12 02:12:46,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:46,983 INFO L225 Difference]: With dead ends: 38 [2023-11-12 02:12:46,983 INFO L226 Difference]: Without dead ends: 16 [2023-11-12 02:12:46,986 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 02:12:46,990 INFO L413 NwaCegarLoop]: 21 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, 21 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 02:12:46,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:47,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-12 02:12:47,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-12 02:12:47,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 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 02:12:47,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2023-11-12 02:12:47,026 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 12 [2023-11-12 02:12:47,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:47,026 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2023-11-12 02:12:47,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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 02:12:47,027 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2023-11-12 02:12:47,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:12:47,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:47,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:47,047 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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)] Forceful destruction successful, exit code 0 [2023-11-12 02:12:47,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 02:12:47,247 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:47,248 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:47,248 INFO L85 PathProgramCache]: Analyzing trace with hash 499625812, now seen corresponding path program 1 times [2023-11-12 02:12:47,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:12:47,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1691036254] [2023-11-12 02:12:47,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:47,250 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 02:12:47,250 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:12:47,253 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 02:12:47,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 02:12:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:47,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:12:47,390 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:12:47,405 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 02:12:47,405 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:12:47,406 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:12:47,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1691036254] [2023-11-12 02:12:47,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1691036254] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:12:47,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:12:47,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:12:47,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281762630] [2023-11-12 02:12:47,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:12:47,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:12:47,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:12:47,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:12:47,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:47,411 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:47,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:12:47,444 INFO L93 Difference]: Finished difference Result 24 states and 23 transitions. [2023-11-12 02:12:47,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:12:47,447 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2023-11-12 02:12:47,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:12:47,448 INFO L225 Difference]: With dead ends: 24 [2023-11-12 02:12:47,449 INFO L226 Difference]: Without dead ends: 16 [2023-11-12 02:12:47,450 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:12:47,451 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 0 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:12:47,454 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:12:47,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2023-11-12 02:12:47,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2023-11-12 02:12:47,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.0) internal successors, (15), 15 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 02:12:47,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2023-11-12 02:12:47,463 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 14 [2023-11-12 02:12:47,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:12:47,464 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2023-11-12 02:12:47,464 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:12:47,465 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2023-11-12 02:12:47,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-12 02:12:47,467 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:12:47,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:12:47,487 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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)] Forceful destruction successful, exit code 0 [2023-11-12 02:12:47,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 02:12:47,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-12 02:12:47,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:12:47,683 INFO L85 PathProgramCache]: Analyzing trace with hash 2210040, now seen corresponding path program 1 times [2023-11-12 02:12:47,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-12 02:12:47,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183286130] [2023-11-12 02:12:47,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:12:47,684 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 02:12:47,684 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/bin/uautomizer-verify-uTZkv6EMXl/mathsat [2023-11-12 02:12:47,686 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 02:12:47,688 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 (4)] Waiting until timeout for monitored process [2023-11-12 02:12:47,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:12:47,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 29 conjunts are in the unsatisfiable core [2023-11-12 02:12:47,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:12:47,928 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2023-11-12 02:12:49,266 INFO L322 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-12 02:12:49,267 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 44 [2023-11-12 02:13:05,797 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 02:13:05,797 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:13:05,797 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-12 02:13:05,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183286130] [2023-11-12 02:13:05,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183286130] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:13:05,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:13:05,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-11-12 02:13:05,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914167495] [2023-11-12 02:13:05,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:13:05,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-11-12 02:13:05,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-12 02:13:05,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-11-12 02:13:05,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=105, Unknown=6, NotChecked=0, Total=132 [2023-11-12 02:13:05,804 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 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 02:13:07,972 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:13:12,126 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:13:14,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:13:18,407 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:13:25,113 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:13:27,438 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:13:34,506 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, FloatingPoint, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2023-11-12 02:13:37,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:13:37,237 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2023-11-12 02:13:37,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-12 02:13:37,238 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 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 02:13:37,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:13:37,238 INFO L225 Difference]: With dead ends: 16 [2023-11-12 02:13:37,238 INFO L226 Difference]: Without dead ends: 0 [2023-11-12 02:13:37,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 33.1s TimeCoverageRelationStatistics Valid=63, Invalid=344, Unknown=13, NotChecked=0, Total=420 [2023-11-12 02:13:37,241 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 14 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 1 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:13:37,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 26 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 83 Invalid, 7 Unknown, 0 Unchecked, 15.1s Time] [2023-11-12 02:13:37,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-12 02:13:37,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-12 02:13:37,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:13:37,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-12 02:13:37,244 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2023-11-12 02:13:37,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:13:37,244 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-12 02:13:37,244 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.25) internal successors, (15), 12 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 02:13:37,245 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-12 02:13:37,245 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-12 02:13:37,247 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-12 02:13:37,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:13:37,456 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8c660459-689c-4cf3-8a1e-c220dfdb7e41/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 02:13:37,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.