./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 527bcce2 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx --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 dab30decfbae0c46e4e194ef831d046546cde9953841ff8fbd0a15005d51c024 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:21:28,629 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:21:28,705 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:21:28,710 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:21:28,710 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:21:28,737 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:21:28,738 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:21:28,738 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:21:28,739 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:21:28,740 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:21:28,740 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:21:28,741 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:21:28,742 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:21:28,742 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:21:28,743 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:21:28,743 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:21:28,744 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:21:28,744 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:21:28,745 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:21:28,745 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:21:28,746 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:21:28,746 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:21:28,747 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:21:28,747 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:21:28,748 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:21:28,748 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:21:28,749 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:21:28,749 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:21:28,750 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:21:28,750 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:21:28,750 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:21:28,751 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:28,751 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:21:28,751 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:21:28,752 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:21:28,752 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:21:28,752 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:21:28,752 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:21:28,753 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:21:28,753 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:21:28,753 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:21:28,754 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:21:28,754 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_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dab30decfbae0c46e4e194ef831d046546cde9953841ff8fbd0a15005d51c024 [2023-11-21 22:21:29,019 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:21:29,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:21:29,056 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:21:29,057 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:21:29,058 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:21:29,059 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c [2023-11-21 22:21:32,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:21:32,466 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:21:32,467 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c [2023-11-21 22:21:32,475 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/data/ad0ecd27b/546f77212fc140278adebb1265504394/FLAG9d9d3b35a [2023-11-21 22:21:32,489 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/data/ad0ecd27b/546f77212fc140278adebb1265504394 [2023-11-21 22:21:32,492 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:21:32,494 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:21:32,495 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:32,495 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:21:32,501 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:21:32,502 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,503 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a16dc61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32, skipping insertion in model container [2023-11-21 22:21:32,503 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,535 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:21:32,725 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_4678459a-f034-42f9-80cd-2222761aa690/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[1545,1558] [2023-11-21 22:21:32,737 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_4678459a-f034-42f9-80cd-2222761aa690/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[2749,2762] [2023-11-21 22:21:32,746 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:32,762 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:21:32,780 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_4678459a-f034-42f9-80cd-2222761aa690/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[1545,1558] [2023-11-21 22:21:32,786 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_4678459a-f034-42f9-80cd-2222761aa690/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[2749,2762] [2023-11-21 22:21:32,798 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:32,814 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:21:32,814 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32 WrapperNode [2023-11-21 22:21:32,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:32,816 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:32,816 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:21:32,816 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:21:32,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,832 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,858 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 173 [2023-11-21 22:21:32,858 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:32,859 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:21:32,859 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:21:32,859 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:21:32,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,871 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,882 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:21:32,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,893 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,896 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,899 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:21:32,900 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:21:32,900 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:21:32,900 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:21:32,901 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (1/1) ... [2023-11-21 22:21:32,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:32,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:32,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:32,971 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:21:32,983 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:21:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:21:32,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:21:32,984 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:21:33,080 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:21:33,083 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:21:33,322 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:21:33,410 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:21:33,411 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:21:33,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:33 BoogieIcfgContainer [2023-11-21 22:21:33,413 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:21:33,415 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:21:33,416 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:21:33,419 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:21:33,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:21:32" (1/3) ... [2023-11-21 22:21:33,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8cedeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:33, skipping insertion in model container [2023-11-21 22:21:33,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:32" (2/3) ... [2023-11-21 22:21:33,421 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c8cedeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:33, skipping insertion in model container [2023-11-21 22:21:33,421 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:33" (3/3) ... [2023-11-21 22:21:33,423 INFO L112 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.v+nlh-reducer.c [2023-11-21 22:21:33,450 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:21:33,450 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 22:21:33,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:21:33,499 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;@272c7d90, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:21:33,499 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 22:21:33,502 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 35 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:33,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 22:21:33,508 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:33,509 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:33,509 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:21:33,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:33,515 INFO L85 PathProgramCache]: Analyzing trace with hash -594881915, now seen corresponding path program 1 times [2023-11-21 22:21:33,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:21:33,523 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018879955] [2023-11-21 22:21:33,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:33,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:21:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:21:33,647 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:21:33,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:21:33,723 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:21:33,725 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:21:33,726 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2023-11-21 22:21:33,728 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2023-11-21 22:21:33,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:21:33,740 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:21:33,749 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:21:33,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:21:33 BoogieIcfgContainer [2023-11-21 22:21:33,796 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:21:33,797 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:21:33,797 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:21:33,797 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:21:33,798 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:33" (3/4) ... [2023-11-21 22:21:33,806 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:21:33,807 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:21:33,808 INFO L158 Benchmark]: Toolchain (without parser) took 1314.22ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 103.8MB in the beginning and 146.6MB in the end (delta: -42.8MB). Peak memory consumption was 3.2MB. Max. memory is 16.1GB. [2023-11-21 22:21:33,809 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:21:33,810 INFO L158 Benchmark]: CACSL2BoogieTranslator took 320.00ms. Allocated memory is still 151.0MB. Free memory was 103.8MB in the beginning and 91.0MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:21:33,811 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.35ms. Allocated memory is still 151.0MB. Free memory was 91.0MB in the beginning and 89.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:21:33,819 INFO L158 Benchmark]: Boogie Preprocessor took 39.89ms. Allocated memory is still 151.0MB. Free memory was 89.1MB in the beginning and 87.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:21:33,820 INFO L158 Benchmark]: RCFGBuilder took 512.95ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 87.1MB in the beginning and 160.5MB in the end (delta: -73.4MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-11-21 22:21:33,820 INFO L158 Benchmark]: TraceAbstraction took 380.71ms. Allocated memory is still 195.0MB. Free memory was 159.8MB in the beginning and 147.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-11-21 22:21:33,821 INFO L158 Benchmark]: Witness Printer took 10.26ms. Allocated memory is still 195.0MB. Free memory was 147.6MB in the beginning and 146.6MB in the end (delta: 993.1kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:21:33,830 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 151.0MB. Free memory is still 96.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 320.00ms. Allocated memory is still 151.0MB. Free memory was 103.8MB in the beginning and 91.0MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.35ms. Allocated memory is still 151.0MB. Free memory was 91.0MB in the beginning and 89.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.89ms. Allocated memory is still 151.0MB. Free memory was 89.1MB in the beginning and 87.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 512.95ms. Allocated memory was 151.0MB in the beginning and 195.0MB in the end (delta: 44.0MB). Free memory was 87.1MB in the beginning and 160.5MB in the end (delta: -73.4MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * TraceAbstraction took 380.71ms. Allocated memory is still 195.0MB. Free memory was 159.8MB in the beginning and 147.6MB in the end (delta: 12.2MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * Witness Printer took 10.26ms. Allocated memory is still 195.0MB. Free memory was 147.6MB in the beginning and 146.6MB in the end (delta: 993.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 70]: 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 someBinaryFLOATComparisonOperation at line 52, overapproximation of someBinaryDOUBLEComparisonOperation at line 57, overapproximation of to_real at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 51. Possible FailurePath: [L1] int __return_main; [L12] int __tmp_160_0; [L13] int __tmp_160_1; [L14] int __tmp_160_2; [L15] int __tmp_142_0; [L16] int __tmp_142_1; [L17] int __tmp_136_0; [L18] int __return_165; [L21] float main__X; [L22] float main__Y; [L23] float main__S; [L24] float main__R; [L25] float main__D; [L26] int main__i; [L27] main__Y = 0 [L28] main__i = 0 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__i=0] [L29] COND TRUE main__i < 100000 [L31] main__X = __VERIFIER_nondet_float() [L32] main__D = __VERIFIER_nondet_float() [L33] int main____CPAchecker_TMP_0; VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__i=0] [L34] COND TRUE main__X >= -128.0 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__i=0] [L36] COND TRUE main__X <= 128.0 [L38] main____CPAchecker_TMP_0 = 1 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__i=0] [L39] COND TRUE main____CPAchecker_TMP_0 != 0 [L41] int main____CPAchecker_TMP_1; VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__i=0] [L42] COND TRUE main__D >= 0.0 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main__i=0] [L44] COND TRUE main__D <= 16.0 [L46] main____CPAchecker_TMP_1 = 1 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__i=0] [L47] COND TRUE main____CPAchecker_TMP_1 != 0 [L49] main__S = main__Y [L50] main__Y = main__X [L51] main__R = main__X - main__S [L52] COND FALSE !(main__R <= (-main__D)) [L227] COND TRUE main__R >= main__D [L229] main__Y = main__S + main__D [L56] int main____CPAchecker_TMP_2; VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__S=54, main__X=53, main__Y=53, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__i=0] [L57] COND FALSE !(main__Y >= -129.0) VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__S=54, main__X=53, main__Y=53, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main__i=0] [L216] main____CPAchecker_TMP_2 = 0 VAL [__return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, main__S=54, main__X=53, main__Y=53, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__i=0] [L64] int __tmp_1; [L65] __tmp_1 = main____CPAchecker_TMP_2 [L66] int __VERIFIER_assert__cond; [L67] __VERIFIER_assert__cond = __tmp_1 VAL [__VERIFIER_assert__cond=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __tmp_1=0, main__S=54, main__X=53, main__Y=53, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__i=0] [L68] COND TRUE __VERIFIER_assert__cond == 0 VAL [__VERIFIER_assert__cond=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __tmp_1=0, main__S=54, main__X=53, main__Y=53, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__i=0] [L70] reach_error() VAL [__VERIFIER_assert__cond=0, __return_165=0, __return_main=0, __tmp_136_0=0, __tmp_142_0=0, __tmp_142_1=0, __tmp_160_0=0, __tmp_160_1=0, __tmp_160_2=0, __tmp_1=0, main__S=54, main__X=53, main__Y=53, main____CPAchecker_TMP_0=1, main____CPAchecker_TMP_1=1, main____CPAchecker_TMP_2=0, main__i=0] - UnprovableResult [Line: 126]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 [2023-11-21 22:21:33,880 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx --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 dab30decfbae0c46e4e194ef831d046546cde9953841ff8fbd0a15005d51c024 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:21:36,701 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:21:36,839 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:21:36,848 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:21:36,849 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:21:36,897 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:21:36,898 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:21:36,898 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:21:36,899 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:21:36,904 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:21:36,905 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:21:36,905 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:21:36,906 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:21:36,908 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:21:36,908 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:21:36,909 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:21:36,909 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:21:36,910 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:21:36,910 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:21:36,911 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:21:36,911 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:21:36,911 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:21:36,912 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:21:36,912 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:21:36,913 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:21:36,913 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:21:36,913 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:21:36,914 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:21:36,914 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:21:36,915 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:21:36,916 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:21:36,916 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:21:36,917 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:21:36,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:36,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:21:36,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:21:36,918 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:21:36,919 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:21:36,919 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:21:36,919 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:21:36,919 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:21:36,920 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:21:36,920 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:21:36,920 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:21:36,921 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:21:36,921 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_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dab30decfbae0c46e4e194ef831d046546cde9953841ff8fbd0a15005d51c024 [2023-11-21 22:21:37,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:21:37,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:21:37,411 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:21:37,413 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:21:37,413 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:21:37,415 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c [2023-11-21 22:21:40,526 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:21:40,783 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:21:40,786 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c [2023-11-21 22:21:40,794 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/data/de2b7c231/41ed509097df42518d43eac26cf86b43/FLAG784aafb86 [2023-11-21 22:21:40,808 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/data/de2b7c231/41ed509097df42518d43eac26cf86b43 [2023-11-21 22:21:40,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:21:40,812 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:21:40,814 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:40,814 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:21:40,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:21:40,822 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:40" (1/1) ... [2023-11-21 22:21:40,824 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@315fcb8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:40, skipping insertion in model container [2023-11-21 22:21:40,824 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:21:40" (1/1) ... [2023-11-21 22:21:40,879 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:21:41,134 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_4678459a-f034-42f9-80cd-2222761aa690/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[1545,1558] [2023-11-21 22:21:41,158 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_4678459a-f034-42f9-80cd-2222761aa690/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[2749,2762] [2023-11-21 22:21:41,176 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:41,207 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:21:41,248 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_4678459a-f034-42f9-80cd-2222761aa690/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[1545,1558] [2023-11-21 22:21:41,253 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_4678459a-f034-42f9-80cd-2222761aa690/sv-benchmarks/c/float-benchs/rlim_invariant.c.v+nlh-reducer.c[2749,2762] [2023-11-21 22:21:41,262 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:21:41,288 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:21:41,289 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41 WrapperNode [2023-11-21 22:21:41,289 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:21:41,290 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:41,291 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:21:41,291 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:21:41,299 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,367 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,428 INFO L138 Inliner]: procedures = 15, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 174 [2023-11-21 22:21:41,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:21:41,430 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:21:41,430 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:21:41,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:21:41,443 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,443 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,463 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,473 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:21:41,473 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,473 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,496 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,499 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,501 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,503 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,515 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:21:41,516 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:21:41,516 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:21:41,516 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:21:41,517 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (1/1) ... [2023-11-21 22:21:41,526 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:21:41,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:21:41,560 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:21:41,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:21:41,612 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:21:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:21:41,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:21:41,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:21:41,704 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:21:41,707 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:21:44,155 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:21:44,261 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:21:44,262 INFO L308 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-21 22:21:44,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:44 BoogieIcfgContainer [2023-11-21 22:21:44,264 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:21:44,267 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:21:44,267 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:21:44,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:21:44,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:21:40" (1/3) ... [2023-11-21 22:21:44,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715afdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:44, skipping insertion in model container [2023-11-21 22:21:44,273 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:21:41" (2/3) ... [2023-11-21 22:21:44,276 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@715afdf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:21:44, skipping insertion in model container [2023-11-21 22:21:44,276 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:21:44" (3/3) ... [2023-11-21 22:21:44,278 INFO L112 eAbstractionObserver]: Analyzing ICFG rlim_invariant.c.v+nlh-reducer.c [2023-11-21 22:21:44,299 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:21:44,299 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-21 22:21:44,363 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:21:44,370 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;@559b9bc6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:21:44,372 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-21 22:21:44,378 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 35 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:21:44,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-21 22:21:44,387 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:21:44,388 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:21:44,389 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:21:44,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:21:44,396 INFO L85 PathProgramCache]: Analyzing trace with hash -594881915, now seen corresponding path program 1 times [2023-11-21 22:21:44,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:21:44,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2049760385] [2023-11-21 22:21:44,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:21:44,410 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 [2023-11-21 22:21:44,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:21:44,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/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) [2023-11-21 22:21:44,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4678459a-f034-42f9-80cd-2222761aa690/bin/uautomizer-verify-bycVGegfSx/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 [2023-11-21 22:21:44,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:21:44,635 INFO L262 TraceCheckSpWp]: Trace formula consists of 41 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-21 22:21:44,639 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-21 22:22:17,029 WARN L293 SmtUtils]: Spent 5.37s on a formula simplification that was a NOOP. DAG size: 43 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-21 22:22:18,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-21 22:22:18,229 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-21 22:22:18,230 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-21 22:22:18,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2049760385] [2023-11-21 22:22:18,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2049760385] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-21 22:22:18,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-21 22:22:18,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-21 22:22:18,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226450468] [2023-11-21 22:22:18,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-21 22:22:18,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-21 22:22:18,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-21 22:22:18,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-21 22:22:18,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=18, Unknown=3, NotChecked=0, Total=42 [2023-11-21 22:22:18,285 INFO L87 Difference]: Start difference. First operand has 36 states, 33 states have (on average 1.6666666666666667) internal successors, (55), 35 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-21 22:22:27,785 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-21 22:22:29,336 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-21 22:22:31,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.96s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-21 22:22:32,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-11-21 22:22:35,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0]