./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-99.i --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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-99.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/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 5b933671a1fface527dbef89f2ee599c80d54d1c8c988a3b741df55fc4b83921 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:16:20,893 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:16:21,019 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-21 22:16:21,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:16:21,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:16:21,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:16:21,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:16:21,076 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:16:21,077 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:16:21,084 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:16:21,085 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:16:21,086 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:16:21,087 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:16:21,089 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:16:21,090 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:16:21,090 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:16:21,091 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:16:21,091 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:16:21,092 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 22:16:21,092 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:16:21,092 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:16:21,093 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:16:21,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:16:21,094 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:16:21,094 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:16:21,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:16:21,095 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:16:21,096 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:16:21,097 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:16:21,097 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:16:21,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:16:21,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:16:21,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:16:21,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:16:21,100 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:16:21,100 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 22:16:21,100 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 22:16:21,100 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:16:21,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:16:21,101 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:16:21,101 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:16:21,102 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:16:21,102 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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b933671a1fface527dbef89f2ee599c80d54d1c8c988a3b741df55fc4b83921 [2023-11-21 22:16:21,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:16:21,450 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:16:21,453 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:16:21,455 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:16:21,455 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:16:21,456 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-99.i [2023-11-21 22:16:24,533 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:16:24,744 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:16:24,744 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-99.i [2023-11-21 22:16:24,759 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/data/317b7e36a/cbceefe37c814174891e072c7add9e15/FLAG055f71a8f [2023-11-21 22:16:24,771 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/data/317b7e36a/cbceefe37c814174891e072c7add9e15 [2023-11-21 22:16:24,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:16:24,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:16:24,777 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:24,777 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:16:24,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:16:24,784 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:24" (1/1) ... [2023-11-21 22:16:24,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45fa7789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:24, skipping insertion in model container [2023-11-21 22:16:24,785 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:24" (1/1) ... [2023-11-21 22:16:24,816 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:16:24,977 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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-99.i[915,928] [2023-11-21 22:16:25,014 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:25,026 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:16:25,039 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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-99.i[915,928] [2023-11-21 22:16:25,060 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:25,078 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:16:25,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25 WrapperNode [2023-11-21 22:16:25,079 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:25,080 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:25,080 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:16:25,080 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:16:25,088 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,101 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,143 INFO L138 Inliner]: procedures = 26, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86 [2023-11-21 22:16:25,148 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:25,148 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:16:25,149 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:16:25,149 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:16:25,158 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,161 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,170 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:16:25,171 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,171 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,178 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,184 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,186 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,190 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:16:25,191 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:16:25,191 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:16:25,191 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:16:25,192 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (1/1) ... [2023-11-21 22:16:25,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:16:25,218 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:25,236 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:25,275 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:16:25,284 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:16:25,284 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:16:25,285 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:16:25,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-21 22:16:25,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:16:25,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:16:25,391 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:16:25,393 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:16:25,680 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:16:25,863 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:16:25,863 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:16:25,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:25 BoogieIcfgContainer [2023-11-21 22:16:25,865 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:16:25,869 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:16:25,869 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:16:25,873 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:16:25,873 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:16:24" (1/3) ... [2023-11-21 22:16:25,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4a884a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:25, skipping insertion in model container [2023-11-21 22:16:25,874 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:25" (2/3) ... [2023-11-21 22:16:25,874 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f4a884a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:25, skipping insertion in model container [2023-11-21 22:16:25,875 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:25" (3/3) ... [2023-11-21 22:16:25,876 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-99.i [2023-11-21 22:16:25,907 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:16:25,908 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:16:25,958 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:16:25,966 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;@75ebb5c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:16:25,966 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:16:25,971 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:16:25,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-21 22:16:25,981 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:25,982 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:16:25,983 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:16:25,989 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:25,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1853177043, now seen corresponding path program 1 times [2023-11-21 22:16:26,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-21 22:16:26,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538808064] [2023-11-21 22:16:26,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:26,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-21 22:16:26,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:26,273 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-21 22:16:26,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-21 22:16:26,398 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-21 22:16:26,402 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-21 22:16:26,404 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-21 22:16:26,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-21 22:16:26,412 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-21 22:16:26,420 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-21 22:16:26,479 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 10:16:26 BoogieIcfgContainer [2023-11-21 22:16:26,479 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-21 22:16:26,480 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-21 22:16:26,481 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-21 22:16:26,481 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-21 22:16:26,481 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:25" (3/4) ... [2023-11-21 22:16:26,483 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-21 22:16:26,484 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-21 22:16:26,486 INFO L158 Benchmark]: Toolchain (without parser) took 1710.10ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 106.7MB in the beginning and 135.8MB in the end (delta: -29.0MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2023-11-21 22:16:26,486 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 146.8MB. Free memory was 121.1MB in the beginning and 121.0MB in the end (delta: 181.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:16:26,487 INFO L158 Benchmark]: CACSL2BoogieTranslator took 302.64ms. Allocated memory is still 146.8MB. Free memory was 106.7MB in the beginning and 94.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-21 22:16:26,487 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.93ms. Allocated memory is still 146.8MB. Free memory was 94.5MB in the beginning and 92.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:16:26,488 INFO L158 Benchmark]: Boogie Preprocessor took 41.95ms. Allocated memory is still 146.8MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-21 22:16:26,489 INFO L158 Benchmark]: RCFGBuilder took 674.43ms. Allocated memory is still 146.8MB. Free memory was 90.4MB in the beginning and 69.8MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-21 22:16:26,489 INFO L158 Benchmark]: TraceAbstraction took 611.04ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 69.0MB in the beginning and 135.8MB in the end (delta: -66.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:16:26,490 INFO L158 Benchmark]: Witness Printer took 4.20ms. Allocated memory is still 178.3MB. Free memory is still 135.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 22:16:26,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 146.8MB. Free memory was 121.1MB in the beginning and 121.0MB in the end (delta: 181.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 302.64ms. Allocated memory is still 146.8MB. Free memory was 106.7MB in the beginning and 94.5MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.93ms. Allocated memory is still 146.8MB. Free memory was 94.5MB in the beginning and 92.9MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.95ms. Allocated memory is still 146.8MB. Free memory was 92.5MB in the beginning and 90.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 674.43ms. Allocated memory is still 146.8MB. Free memory was 90.4MB in the beginning and 69.8MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 611.04ms. Allocated memory was 146.8MB in the beginning and 178.3MB in the end (delta: 31.5MB). Free memory was 69.0MB in the beginning and 135.8MB in the end (delta: -66.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.20ms. Allocated memory is still 178.3MB. Free memory is still 135.8MB. 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: 19]: 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 42, overapproximation of someUnaryDOUBLEoperation at line 43, overapproximation of someBinaryArithmeticDOUBLEoperation at line 43, overapproximation of someBinaryDOUBLEComparisonOperation at line 43, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 255.5; [L23] unsigned char var_1_2 = 16; [L24] float var_1_4 = 1000000000000000.6; [L25] float var_1_5 = 500.5; [L26] float var_1_6 = 99999999999.5; [L27] double var_1_7 = 9.6; [L28] double var_1_8 = -0.2; [L29] double var_1_9 = 25.2; [L30] signed short int var_1_10 = 1; [L31] unsigned char var_1_11 = 0; [L32] signed long int var_1_15 = -64; [L79] isInitial = 1 [L80] FCALL initially() [L81] COND TRUE 1 [L82] FCALL updateLastVariables() [L83] CALL updateVariables() [L55] var_1_2 = __VERIFIER_nondet_uchar() [L56] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_4=5000000000000003/5, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L20] COND FALSE !(!cond) [L56] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_4=5000000000000003/5, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L57] CALL assume_abort_if_not(var_1_2 <= 127) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=5000000000000003/5, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L20] COND FALSE !(!cond) [L57] RET assume_abort_if_not(var_1_2 <= 127) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=5000000000000003/5, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L58] var_1_4 = __VERIFIER_nondet_float() [L59] CALL assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L20] COND FALSE !(!cond) [L59] RET assume_abort_if_not((var_1_4 >= 0.0F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854765600e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1001/2, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L60] var_1_5 = __VERIFIER_nondet_float() [L61] CALL assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L20] COND FALSE !(!cond) [L61] RET assume_abort_if_not((var_1_5 >= 0.0F && var_1_5 <= -1.0e-20F) || (var_1_5 <= 9223372.036854765600e+12F && var_1_5 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=199999999999/2, var_1_7=48/5, var_1_9=126/5] [L62] var_1_6 = __VERIFIER_nondet_float() [L63] CALL assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_9=126/5] [L20] COND FALSE !(!cond) [L63] RET assume_abort_if_not((var_1_6 >= 0.0F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 9223372.036854765600e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_9=126/5] [L64] var_1_8 = __VERIFIER_nondet_double() [L65] CALL assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_8=1000000000000005, var_1_9=126/5] [L20] COND FALSE !(!cond) [L65] RET assume_abort_if_not((var_1_8 >= -461168.6018427382800e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 4611686.018427382800e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_8=1000000000000005, var_1_9=126/5] [L66] var_1_9 = __VERIFIER_nondet_double() [L67] CALL assume_abort_if_not((var_1_9 >= -461168.6018427382800e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_8=1000000000000005, var_1_9=1000000000000008] [L20] COND FALSE !(!cond) [L67] RET assume_abort_if_not((var_1_9 >= -461168.6018427382800e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 4611686.018427382800e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, var_1_10=1, var_1_11=0, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_8=1000000000000005, var_1_9=1000000000000008] [L68] var_1_11 = __VERIFIER_nondet_uchar() [L69] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_8=1000000000000005, var_1_9=1000000000000008] [L20] COND FALSE !(!cond) [L69] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_8=1000000000000005, var_1_9=1000000000000008] [L70] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_10=1, var_1_11=1, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_8=1000000000000005, var_1_9=1000000000000008] [L20] COND FALSE !(!cond) [L70] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, var_1_10=1, var_1_11=1, var_1_15=-64, var_1_1=511/2, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_8=1000000000000005, var_1_9=1000000000000008] [L83] RET updateVariables() [L84] CALL step() [L36] signed long int stepLocal_0 = (((8) < 0 ) ? -(8) : (8)); [L37] COND FALSE !((((((200) < (128)) ? (200) : (128))) - var_1_2) > stepLocal_0) [L40] var_1_1 = var_1_6 [L42] COND TRUE var_1_5 >= (var_1_4 + var_1_6) [L43] var_1_7 = ((((var_1_8 + var_1_9) < 0 ) ? -(var_1_8 + var_1_9) : (var_1_8 + var_1_9))) [L45] COND TRUE ((var_1_6 - var_1_4) + var_1_7) >= var_1_5 [L46] COND TRUE \read(var_1_11) [L47] var_1_15 = 100 [L50] COND TRUE ((var_1_2 + var_1_15) + var_1_15) >= var_1_15 [L51] var_1_10 = var_1_2 [L84] RET step() [L85] CALL, EXPR property() [L75-L76] return (((((((((200) < (128)) ? (200) : (128))) - var_1_2) > ((((8) < 0 ) ? -(8) : (8)))) ? (var_1_1 == ((float) (((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) - var_1_6))) : (var_1_1 == ((float) var_1_6))) && ((var_1_5 >= (var_1_4 + var_1_6)) ? (var_1_7 == ((double) ((((var_1_8 + var_1_9) < 0 ) ? -(var_1_8 + var_1_9) : (var_1_8 + var_1_9))))) : 1)) && ((((var_1_2 + var_1_15) + var_1_15) >= var_1_15) ? (var_1_10 == ((signed short int) var_1_2)) : 1)) && ((((var_1_6 - var_1_4) + var_1_7) >= var_1_5) ? (var_1_11 ? (var_1_15 == ((signed long int) 100)) : 1) : 1) ; [L85] RET, EXPR property() [L85] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=127, var_1_11=1, var_1_15=100, var_1_1=1000000000000009, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_8=1000000000000005, var_1_9=1000000000000008] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_10=127, var_1_11=1, var_1_15=100, var_1_1=1000000000000009, var_1_2=127, var_1_4=1000000000000007, var_1_5=1000000000000006, var_1_6=1000000000000009, var_1_7=48/5, var_1_8=1000000000000005, var_1_9=1000000000000008] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 9, 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=25occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 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 22:16:26,532 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-99.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/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 5b933671a1fface527dbef89f2ee599c80d54d1c8c988a3b741df55fc4b83921 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-527bcce [2023-11-21 22:16:29,165 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 22:16:29,277 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-21 22:16:29,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 22:16:29,291 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 22:16:29,341 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 22:16:29,342 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 22:16:29,343 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 22:16:29,344 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-21 22:16:29,349 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-21 22:16:29,349 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 22:16:29,350 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 22:16:29,350 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 22:16:29,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 22:16:29,352 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 22:16:29,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 22:16:29,354 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 22:16:29,354 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 22:16:29,355 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 22:16:29,355 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 22:16:29,356 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 22:16:29,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 22:16:29,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 22:16:29,360 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-21 22:16:29,360 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 22:16:29,361 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 22:16:29,361 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 22:16:29,361 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 22:16:29,362 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 22:16:29,362 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 22:16:29,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 22:16:29,364 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-21 22:16:29,364 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 22:16:29,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:16:29,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 22:16:29,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 22:16:29,366 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 22:16:29,367 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 22:16:29,367 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 22:16:29,367 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 22:16:29,367 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-21 22:16:29,368 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 22:16:29,368 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-21 22:16:29,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 22:16:29,369 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-21 22:16:29,369 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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b933671a1fface527dbef89f2ee599c80d54d1c8c988a3b741df55fc4b83921 [2023-11-21 22:16:29,800 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 22:16:29,828 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 22:16:29,830 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 22:16:29,832 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 22:16:29,834 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 22:16:29,836 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-99.i [2023-11-21 22:16:33,086 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 22:16:33,344 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 22:16:33,345 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-99.i [2023-11-21 22:16:33,356 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/data/f5328a64d/f155eec72a0e4d38b5e3311b7d4e72f2/FLAG7a041382d [2023-11-21 22:16:33,371 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/data/f5328a64d/f155eec72a0e4d38b5e3311b7d4e72f2 [2023-11-21 22:16:33,374 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 22:16:33,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 22:16:33,377 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:33,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 22:16:33,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 22:16:33,385 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d70cdde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33, skipping insertion in model container [2023-11-21 22:16:33,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,412 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 22:16:33,607 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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-99.i[915,928] [2023-11-21 22:16:33,686 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:33,719 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 22:16:33,740 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_f62e9c88-9277-4ffc-907b-6077fa7f26fb/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-99.i[915,928] [2023-11-21 22:16:33,776 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 22:16:33,804 INFO L206 MainTranslator]: Completed translation [2023-11-21 22:16:33,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33 WrapperNode [2023-11-21 22:16:33,805 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 22:16:33,806 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:33,807 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 22:16:33,807 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 22:16:33,814 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,840 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,881 INFO L138 Inliner]: procedures = 27, calls = 22, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 86 [2023-11-21 22:16:33,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 22:16:33,884 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 22:16:33,884 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 22:16:33,884 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 22:16:33,896 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,897 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,912 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,934 INFO L187 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-21 22:16:33,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,945 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,959 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,962 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-21 22:16:33,980 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-21 22:16:33,980 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-21 22:16:33,981 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-21 22:16:33,981 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (1/1) ... [2023-11-21 22:16:33,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 22:16:33,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/z3 [2023-11-21 22:16:34,012 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-21 22:16:34,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-21 22:16:34,062 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-21 22:16:34,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-21 22:16:34,063 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-21 22:16:34,063 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-21 22:16:34,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-21 22:16:34,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-21 22:16:34,148 INFO L240 CfgBuilder]: Building ICFG [2023-11-21 22:16:34,152 INFO L266 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-21 22:16:41,280 INFO L281 CfgBuilder]: Performing block encoding [2023-11-21 22:16:41,439 INFO L303 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-21 22:16:41,440 INFO L308 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-21 22:16:41,441 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:41 BoogieIcfgContainer [2023-11-21 22:16:41,442 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-21 22:16:41,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-21 22:16:41,449 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-21 22:16:41,453 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-21 22:16:41,454 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 10:16:33" (1/3) ... [2023-11-21 22:16:41,455 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2f9c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:41, skipping insertion in model container [2023-11-21 22:16:41,456 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 10:16:33" (2/3) ... [2023-11-21 22:16:41,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f2f9c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 10:16:41, skipping insertion in model container [2023-11-21 22:16:41,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 10:16:41" (3/3) ... [2023-11-21 22:16:41,459 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-99.i [2023-11-21 22:16:41,500 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-21 22:16:41,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-21 22:16:41,549 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-21 22:16:41,556 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;@3d7b9a7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-21 22:16:41,557 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-21 22:16:41,561 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 14 states have internal predecessors, (16), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-21 22:16:41,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2023-11-21 22:16:41,571 INFO L187 NwaCegarLoop]: Found error trace [2023-11-21 22:16:41,572 INFO L195 NwaCegarLoop]: trace histogram [9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-21 22:16:41,572 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-21 22:16:41,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-21 22:16:41,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1853177043, now seen corresponding path program 1 times [2023-11-21 22:16:41,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-21 22:16:41,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1149049574] [2023-11-21 22:16:41,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-21 22:16:41,591 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 22:16:41,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/bin/uautomizer-verify-bycVGegfSx/mathsat [2023-11-21 22:16:41,596 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/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 22:16:41,597 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f62e9c88-9277-4ffc-907b-6077fa7f26fb/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 22:16:42,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-21 22:16:42,257 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-21 22:16:42,268 INFO L285 TraceCheckSpWp]: Computing forward predicates...