./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme --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 c4d6be02e4d0ebe91e293f792b17ac6753100510b2dffdcc996eb79757e72554 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:43:54,103 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:43:54,183 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-26 10:43:54,189 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:43:54,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:43:54,217 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:43:54,218 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:43:54,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:43:54,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:43:54,220 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:43:54,220 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:43:54,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:43:54,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:43:54,222 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:43:54,223 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:43:54,224 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:43:54,224 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:43:54,225 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:43:54,225 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-26 10:43:54,226 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:43:54,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:43:54,227 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:43:54,228 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:43:54,228 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:43:54,229 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:43:54,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:43:54,230 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:43:54,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:43:54,231 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:43:54,231 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:43:54,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:43:54,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:43:54,232 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:43:54,233 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:43:54,233 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:43:54,234 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-26 10:43:54,234 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-26 10:43:54,234 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:43:54,235 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:43:54,235 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:43:54,236 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:43:54,236 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:43:54,237 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_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4d6be02e4d0ebe91e293f792b17ac6753100510b2dffdcc996eb79757e72554 [2023-11-26 10:43:54,480 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:43:54,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:43:54,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:43:54,518 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:43:54,519 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:43:54,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i [2023-11-26 10:43:57,684 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:43:57,878 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:43:57,879 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i [2023-11-26 10:43:57,892 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/data/c9c72d4bc/b05550e228c14029ae5bc7b4fb79f61f/FLAGf54d8dde5 [2023-11-26 10:43:57,907 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/data/c9c72d4bc/b05550e228c14029ae5bc7b4fb79f61f [2023-11-26 10:43:57,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:43:57,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:43:57,913 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:43:57,914 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:43:57,920 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:43:57,923 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,924 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4782dbc5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:57, skipping insertion in model container [2023-11-26 10:43:57,925 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:43:57" (1/1) ... [2023-11-26 10:43:57,950 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:43:58,103 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_f3ea6f41-fa4f-4a43-bee2-3753647ed956/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i[915,928] [2023-11-26 10:43:58,148 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:43:58,160 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:43:58,172 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_f3ea6f41-fa4f-4a43-bee2-3753647ed956/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i[915,928] [2023-11-26 10:43:58,194 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:43:58,212 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:43:58,212 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58 WrapperNode [2023-11-26 10:43:58,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:43:58,214 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:43:58,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:43:58,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:43:58,222 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,231 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,267 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2023-11-26 10:43:58,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:43:58,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:43:58,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:43:58,268 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:43:58,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,284 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,299 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:43:58,299 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,299 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,307 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,314 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,322 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,324 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,327 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:43:58,328 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:43:58,328 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:43:58,328 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:43:58,329 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (1/1) ... [2023-11-26 10:43:58,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:43:58,356 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:43:58,370 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:43:58,393 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:43:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:43:58,414 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:43:58,415 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:43:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-26 10:43:58,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:43:58,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:43:58,516 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:43:58,518 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:43:58,800 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:43:58,840 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:43:58,840 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:43:58,841 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:58 BoogieIcfgContainer [2023-11-26 10:43:58,841 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:43:58,844 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:43:58,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:43:58,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:43:58,863 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:43:57" (1/3) ... [2023-11-26 10:43:58,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f53436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:43:58, skipping insertion in model container [2023-11-26 10:43:58,869 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:43:58" (2/3) ... [2023-11-26 10:43:58,869 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f53436 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:43:58, skipping insertion in model container [2023-11-26 10:43:58,870 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:58" (3/3) ... [2023-11-26 10:43:58,871 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-29.i [2023-11-26 10:43:58,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:43:58,898 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:43:58,946 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:43:58,953 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;@684e8967, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:43:58,953 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:43:58,957 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 10:43:58,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 10:43:58,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:58,969 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:58,970 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:43:58,975 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:58,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1085528093, now seen corresponding path program 1 times [2023-11-26 10:43:58,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:58,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2061783863] [2023-11-26 10:43:58,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:58,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:59,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-26 10:43:59,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:59,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-26 10:43:59,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:59,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2023-11-26 10:43:59,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:59,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-26 10:43:59,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:59,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-26 10:43:59,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:59,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-11-26 10:43:59,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:59,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2023-11-26 10:43:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:59,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2023-11-26 10:43:59,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:59,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2023-11-26 10:43:59,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:59,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-26 10:43:59,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:43:59,377 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2023-11-26 10:43:59,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-26 10:43:59,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2061783863] [2023-11-26 10:43:59,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2061783863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:43:59,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:43:59,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:43:59,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084064643] [2023-11-26 10:43:59,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:43:59,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:43:59,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-26 10:43:59,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:43:59,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:43:59,422 INFO L87 Difference]: Start difference. First operand has 36 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 10:43:59,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:43:59,491 INFO L93 Difference]: Finished difference Result 69 states and 116 transitions. [2023-11-26 10:43:59,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:43:59,498 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 65 [2023-11-26 10:43:59,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:43:59,509 INFO L225 Difference]: With dead ends: 69 [2023-11-26 10:43:59,510 INFO L226 Difference]: Without dead ends: 34 [2023-11-26 10:43:59,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:43:59,521 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-26 10:43:59,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-26 10:43:59,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-26 10:43:59,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-26 10:43:59,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 10:43:59,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2023-11-26 10:43:59,600 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 49 transitions. Word has length 65 [2023-11-26 10:43:59,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:43:59,601 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 49 transitions. [2023-11-26 10:43:59,602 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 10:43:59,602 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2023-11-26 10:43:59,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 10:43:59,605 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:43:59,606 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1] [2023-11-26 10:43:59,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-26 10:43:59,606 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:43:59,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:43:59,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1277642521, now seen corresponding path program 1 times [2023-11-26 10:43:59,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-26 10:43:59,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177892601] [2023-11-26 10:43:59,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:43:59,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-26 10:43:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:59,701 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-26 10:43:59,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-26 10:43:59,806 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-26 10:43:59,806 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-26 10:43:59,808 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-26 10:43:59,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-26 10:43:59,814 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2023-11-26 10:43:59,818 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-26 10:43:59,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 10:43:59 BoogieIcfgContainer [2023-11-26 10:43:59,865 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-26 10:43:59,866 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-26 10:43:59,866 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-26 10:43:59,866 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-26 10:43:59,867 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:43:58" (3/4) ... [2023-11-26 10:43:59,869 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-11-26 10:43:59,870 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-26 10:43:59,871 INFO L158 Benchmark]: Toolchain (without parser) took 1958.84ms. Allocated memory is still 161.5MB. Free memory was 118.4MB in the beginning and 86.3MB in the end (delta: 32.0MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,871 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:43:59,872 INFO L158 Benchmark]: CACSL2BoogieTranslator took 299.50ms. Allocated memory is still 161.5MB. Free memory was 118.4MB in the beginning and 106.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,873 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.74ms. Allocated memory is still 161.5MB. Free memory was 106.2MB in the beginning and 104.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,873 INFO L158 Benchmark]: Boogie Preprocessor took 59.21ms. Allocated memory is still 161.5MB. Free memory was 104.1MB in the beginning and 100.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,874 INFO L158 Benchmark]: RCFGBuilder took 513.35ms. Allocated memory is still 161.5MB. Free memory was 100.8MB in the beginning and 130.4MB in the end (delta: -29.6MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,874 INFO L158 Benchmark]: TraceAbstraction took 1021.00ms. Allocated memory is still 161.5MB. Free memory was 130.1MB in the beginning and 87.2MB in the end (delta: 42.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2023-11-26 10:43:59,875 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 161.5MB. Free memory was 87.2MB in the beginning and 86.3MB in the end (delta: 898.0kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-26 10:43:59,878 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 104.9MB. Free memory is still 54.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 299.50ms. Allocated memory is still 161.5MB. Free memory was 118.4MB in the beginning and 106.6MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.74ms. Allocated memory is still 161.5MB. Free memory was 106.2MB in the beginning and 104.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.21ms. Allocated memory is still 161.5MB. Free memory was 104.1MB in the beginning and 100.8MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 513.35ms. Allocated memory is still 161.5MB. Free memory was 100.8MB in the beginning and 130.4MB in the end (delta: -29.6MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1021.00ms. Allocated memory is still 161.5MB. Free memory was 130.1MB in the beginning and 87.2MB in the end (delta: 42.8MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 161.5MB. Free memory was 87.2MB in the beginning and 86.3MB in the end (delta: 898.0kB). 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 76, overapproximation of someBinaryDOUBLEComparisonOperation at line 76. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 2.5; [L23] unsigned char var_1_2 = 0; [L24] float var_1_3 = 9.3; [L25] float var_1_4 = 3.4; [L26] unsigned short int var_1_5 = 32; [L27] unsigned short int var_1_6 = 10; [L28] unsigned short int var_1_7 = 64; [L29] unsigned short int var_1_8 = 16; [L30] unsigned short int var_1_9 = 1; [L80] isInitial = 1 [L81] FCALL initially() [L82] COND TRUE 1 [L83] FCALL updateLastVariables() [L84] CALL updateVariables() [L56] var_1_2 = __VERIFIER_nondet_uchar() [L57] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L57] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L58] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L58] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_3=93/10, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L59] var_1_3 = __VERIFIER_nondet_float() [L60] CALL assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L60] RET assume_abort_if_not((var_1_3 >= -922337.2036854765600e+13F && var_1_3 <= -1.0e-20F) || (var_1_3 <= 9223372.036854765600e+12F && var_1_3 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_4=17/5, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L61] var_1_4 = __VERIFIER_nondet_float() [L62] CALL assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L62] RET assume_abort_if_not((var_1_4 >= -922337.2036854776000e+13F && var_1_4 <= -1.0e-20F) || (var_1_4 <= 9223372.036854776000e+12F && var_1_4 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=10, var_1_7=64, var_1_8=16, var_1_9=1] [L63] var_1_6 = __VERIFIER_nondet_ushort() [L64] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L64] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_7=64, var_1_8=16, var_1_9=1] [L65] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=64, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=64, var_1_8=16, var_1_9=1] [L65] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=64, var_1_8=16, var_1_9=1] [L66] var_1_7 = __VERIFIER_nondet_ushort() [L67] CALL assume_abort_if_not(var_1_7 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_8=16, var_1_9=1] [L67] RET assume_abort_if_not(var_1_7 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_8=16, var_1_9=1] [L68] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=16, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=16, var_1_9=1] [L68] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=16, var_1_9=1] [L69] var_1_8 = __VERIFIER_nondet_ushort() [L70] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_9=1] [L70] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_9=1] [L71] CALL assume_abort_if_not(var_1_8 <= 65534) VAL [\old(cond)=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=65533, var_1_9=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=65533, var_1_9=1] [L71] RET assume_abort_if_not(var_1_8 <= 65534) VAL [isInitial=1, var_1_1=5/2, var_1_2=1, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=65533, var_1_9=1] [L84] RET updateVariables() [L85] CALL step() [L34] COND TRUE \read(var_1_2) [L35] var_1_1 = var_1_3 VAL [isInitial=1, var_1_1=327670, var_1_2=1, var_1_3=327670, var_1_5=32, var_1_6=32767, var_1_7=32767, var_1_8=65533, var_1_9=1] [L41] COND FALSE !((var_1_1 + 8.125) > (var_1_1 * var_1_3)) [L44] var_1_5 = var_1_8 VAL [isInitial=1, var_1_1=327670, var_1_2=1, var_1_3=327670, var_1_5=65533, var_1_6=32767, var_1_7=32767, var_1_8=65533, var_1_9=1] [L46] signed long int stepLocal_0 = 5 * var_1_8; VAL [isInitial=1, stepLocal_0=327665, var_1_1=327670, var_1_2=1, var_1_3=327670, var_1_5=65533, var_1_6=32767, var_1_7=32767, var_1_8=65533, var_1_9=1] [L47] COND FALSE !(((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) VAL [isInitial=1, stepLocal_0=327665, var_1_1=327670, var_1_2=1, var_1_3=327670, var_1_5=65533, var_1_6=32767, var_1_7=32767, var_1_8=65533, var_1_9=1] [L85] RET step() [L86] CALL, EXPR property() [L76-L77] return ((var_1_2 ? (var_1_1 == ((float) var_1_3)) : ((! (var_1_3 < var_1_4)) ? (var_1_1 == ((float) ((((var_1_3) < 0 ) ? -(var_1_3) : (var_1_3))))) : 1)) && (((var_1_1 + 8.125) > (var_1_1 * var_1_3)) ? (var_1_5 == ((unsigned short int) (((((var_1_6 + var_1_7)) > (var_1_8)) ? ((var_1_6 + var_1_7)) : (var_1_8))))) : (var_1_5 == ((unsigned short int) var_1_8)))) && ((((((var_1_3) < (var_1_1)) ? (var_1_3) : (var_1_1))) == var_1_1) ? ((var_1_6 > (5 * var_1_8)) ? ((var_1_1 < (var_1_1 * 256.5f)) ? (var_1_9 == ((unsigned short int) var_1_6)) : 1) : 1) : 1) ; [L86] RET, EXPR property() [L86] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=327670, var_1_2=1, var_1_3=327670, var_1_5=65533, var_1_6=32767, var_1_7=32767, var_1_8=65533, var_1_9=1] [L19] reach_error() VAL [\old(cond)=0, cond=0, isInitial=1, var_1_1=327670, var_1_2=1, var_1_3=327670, var_1_5=65533, var_1_6=32767, var_1_7=32767, var_1_8=65533, var_1_9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 46 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 180/180 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 [2023-11-26 10:43:59,911 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme --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 c4d6be02e4d0ebe91e293f792b17ac6753100510b2dffdcc996eb79757e72554 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-26 10:44:02,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-26 10:44:02,817 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-11-26 10:44:02,827 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-26 10:44:02,828 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-26 10:44:02,879 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-26 10:44:02,880 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-26 10:44:02,880 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-26 10:44:02,881 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-26 10:44:02,887 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-26 10:44:02,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-26 10:44:02,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-26 10:44:02,889 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-26 10:44:02,891 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-26 10:44:02,891 INFO L153 SettingsManager]: * Use SBE=true [2023-11-26 10:44:02,892 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-26 10:44:02,893 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-26 10:44:02,893 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-26 10:44:02,894 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-26 10:44:02,894 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-26 10:44:02,894 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-26 10:44:02,895 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-26 10:44:02,895 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-26 10:44:02,896 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-26 10:44:02,897 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-26 10:44:02,897 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-26 10:44:02,897 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-26 10:44:02,898 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-26 10:44:02,898 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-26 10:44:02,899 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-26 10:44:02,900 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-26 10:44:02,901 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-26 10:44:02,901 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-26 10:44:02,901 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:44:02,902 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-26 10:44:02,902 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-26 10:44:02,903 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-26 10:44:02,903 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-26 10:44:02,904 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-26 10:44:02,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-26 10:44:02,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-26 10:44:02,905 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-26 10:44:02,905 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-26 10:44:02,905 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-26 10:44:02,906 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-26 10:44:02,906 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_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c4d6be02e4d0ebe91e293f792b17ac6753100510b2dffdcc996eb79757e72554 [2023-11-26 10:44:03,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-26 10:44:03,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-26 10:44:03,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-26 10:44:03,398 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-26 10:44:03,399 INFO L274 PluginConnector]: CDTParser initialized [2023-11-26 10:44:03,401 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i [2023-11-26 10:44:06,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-26 10:44:06,962 INFO L384 CDTParser]: Found 1 translation units. [2023-11-26 10:44:06,963 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i [2023-11-26 10:44:06,974 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/data/3b2d179a2/30dba4577d6b40f3a07ebfada09e884d/FLAG84cf6fc9b [2023-11-26 10:44:06,988 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/data/3b2d179a2/30dba4577d6b40f3a07ebfada09e884d [2023-11-26 10:44:06,990 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-26 10:44:06,991 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-26 10:44:06,993 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-26 10:44:06,993 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-26 10:44:06,998 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-26 10:44:06,999 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:44:06" (1/1) ... [2023-11-26 10:44:07,000 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13de418c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07, skipping insertion in model container [2023-11-26 10:44:07,001 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 10:44:06" (1/1) ... [2023-11-26 10:44:07,038 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-26 10:44:07,261 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_f3ea6f41-fa4f-4a43-bee2-3753647ed956/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i[915,928] [2023-11-26 10:44:07,329 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:44:07,354 INFO L202 MainTranslator]: Completed pre-run [2023-11-26 10:44:07,379 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_f3ea6f41-fa4f-4a43-bee2-3753647ed956/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount25_file-29.i[915,928] [2023-11-26 10:44:07,415 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-26 10:44:07,449 INFO L206 MainTranslator]: Completed translation [2023-11-26 10:44:07,450 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07 WrapperNode [2023-11-26 10:44:07,451 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-26 10:44:07,452 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-26 10:44:07,452 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-26 10:44:07,453 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-26 10:44:07,460 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,485 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,547 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 83 [2023-11-26 10:44:07,548 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-26 10:44:07,549 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-26 10:44:07,549 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-26 10:44:07,549 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-26 10:44:07,561 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,565 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,578 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-11-26 10:44:07,578 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,579 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,587 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,590 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,606 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-26 10:44:07,607 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-26 10:44:07,607 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-26 10:44:07,607 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-26 10:44:07,609 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (1/1) ... [2023-11-26 10:44:07,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-26 10:44:07,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/z3 [2023-11-26 10:44:07,661 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-26 10:44:07,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-26 10:44:07,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-26 10:44:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-26 10:44:07,716 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-26 10:44:07,716 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-26 10:44:07,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-26 10:44:07,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-26 10:44:07,818 INFO L241 CfgBuilder]: Building ICFG [2023-11-26 10:44:07,821 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-26 10:44:13,592 INFO L282 CfgBuilder]: Performing block encoding [2023-11-26 10:44:13,668 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-26 10:44:13,668 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-26 10:44:13,669 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:13 BoogieIcfgContainer [2023-11-26 10:44:13,669 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-26 10:44:13,672 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-26 10:44:13,672 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-26 10:44:13,677 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-26 10:44:13,678 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 10:44:06" (1/3) ... [2023-11-26 10:44:13,679 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e1d6e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:44:13, skipping insertion in model container [2023-11-26 10:44:13,680 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 10:44:07" (2/3) ... [2023-11-26 10:44:13,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e1d6e5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 10:44:13, skipping insertion in model container [2023-11-26 10:44:13,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 10:44:13" (3/3) ... [2023-11-26 10:44:13,684 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount25_file-29.i [2023-11-26 10:44:13,708 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-26 10:44:13,708 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-26 10:44:13,772 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-26 10:44:13,779 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;@dfeae01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-26 10:44:13,780 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-26 10:44:13,784 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 10:44:13,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 10:44:13,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:13,796 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1] [2023-11-26 10:44:13,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:13,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:13,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1085528093, now seen corresponding path program 1 times [2023-11-26 10:44:13,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:44:13,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1119483422] [2023-11-26 10:44:13,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:13,822 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 [2023-11-26 10:44:13,827 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:44:13,829 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:44:13,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:44:14,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:14,178 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-26 10:44:14,187 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:44:14,219 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2023-11-26 10:44:14,219 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-26 10:44:14,220 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:44:14,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1119483422] [2023-11-26 10:44:14,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1119483422] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-26 10:44:14,221 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-26 10:44:14,221 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-26 10:44:14,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475305114] [2023-11-26 10:44:14,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-26 10:44:14,228 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-26 10:44:14,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:44:14,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-26 10:44:14,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:44:14,270 INFO L87 Difference]: Start difference. First operand has 36 states, 23 states have (on average 1.4782608695652173) internal successors, (34), 24 states have internal predecessors, (34), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 10:44:17,605 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.30s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:44:17,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:17,607 INFO L93 Difference]: Finished difference Result 69 states and 116 transitions. [2023-11-26 10:44:17,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-26 10:44:17,636 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 65 [2023-11-26 10:44:17,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:17,643 INFO L225 Difference]: With dead ends: 69 [2023-11-26 10:44:17,644 INFO L226 Difference]: Without dead ends: 34 [2023-11-26 10:44:17,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-26 10:44:17,650 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:17,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2023-11-26 10:44:17,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2023-11-26 10:44:17,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2023-11-26 10:44:17,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-11-26 10:44:17,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 49 transitions. [2023-11-26 10:44:17,695 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 49 transitions. Word has length 65 [2023-11-26 10:44:17,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:17,696 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 49 transitions. [2023-11-26 10:44:17,696 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.0) internal successors, (20), 2 states have internal predecessors, (20), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-26 10:44:17,697 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 49 transitions. [2023-11-26 10:44:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-26 10:44:17,700 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:17,701 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1] [2023-11-26 10:44:17,708 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-11-26 10:44:17,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:44:17,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:17,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:17,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1277642521, now seen corresponding path program 1 times [2023-11-26 10:44:17,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:44:17,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [429531650] [2023-11-26 10:44:17,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:17,906 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 [2023-11-26 10:44:17,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:44:17,907 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:44:17,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-26 10:44:18,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:18,244 INFO L262 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-26 10:44:18,249 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-26 10:44:19,905 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 84 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-26 10:44:19,906 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-26 10:44:20,457 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 6 proven. 21 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2023-11-26 10:44:20,457 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-26 10:44:20,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [429531650] [2023-11-26 10:44:20,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [429531650] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-26 10:44:20,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-26 10:44:20,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-11-26 10:44:20,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873090538] [2023-11-26 10:44:20,458 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-26 10:44:20,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-11-26 10:44:20,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-26 10:44:20,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-11-26 10:44:20,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2023-11-26 10:44:20,462 INFO L87 Difference]: Start difference. First operand 34 states and 49 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-26 10:44:25,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.60s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:44:27,587 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:44:30,995 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.26s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:44:35,090 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:44:36,851 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:44:39,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.75s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:44:43,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.67s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-11-26 10:44:44,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-26 10:44:44,126 INFO L93 Difference]: Finished difference Result 108 states and 143 transitions. [2023-11-26 10:44:44,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-11-26 10:44:44,127 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 65 [2023-11-26 10:44:44,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-26 10:44:44,129 INFO L225 Difference]: With dead ends: 108 [2023-11-26 10:44:44,129 INFO L226 Difference]: Without dead ends: 75 [2023-11-26 10:44:44,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=195, Invalid=357, Unknown=0, NotChecked=0, Total=552 [2023-11-26 10:44:44,132 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 146 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 44 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.6s IncrementalHoareTripleChecker+Time [2023-11-26 10:44:44,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 83 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 153 Invalid, 1 Unknown, 0 Unchecked, 22.6s Time] [2023-11-26 10:44:44,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-11-26 10:44:44,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 51. [2023-11-26 10:44:44,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 35 states have (on average 1.2571428571428571) internal successors, (44), 36 states have internal predecessors, (44), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-26 10:44:44,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 68 transitions. [2023-11-26 10:44:44,162 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 68 transitions. Word has length 65 [2023-11-26 10:44:44,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-26 10:44:44,163 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 68 transitions. [2023-11-26 10:44:44,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 11 states have internal predecessors, (42), 4 states have call successors, (20), 3 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2023-11-26 10:44:44,164 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 68 transitions. [2023-11-26 10:44:44,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-26 10:44:44,168 INFO L187 NwaCegarLoop]: Found error trace [2023-11-26 10:44:44,169 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1] [2023-11-26 10:44:44,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-11-26 10:44:44,378 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/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 [2023-11-26 10:44:44,378 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-26 10:44:44,379 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-26 10:44:44,379 INFO L85 PathProgramCache]: Analyzing trace with hash 937572627, now seen corresponding path program 1 times [2023-11-26 10:44:44,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-26 10:44:44,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1469583042] [2023-11-26 10:44:44,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-26 10:44:44,381 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 [2023-11-26 10:44:44,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/mathsat [2023-11-26 10:44:44,382 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/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) [2023-11-26 10:44:44,405 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ea6f41-fa4f-4a43-bee2-3753647ed956/bin/uautomizer-verify-VRDe98Ueme/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-26 10:44:44,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-26 10:44:44,709 INFO L262 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 18 conjunts are in the unsatisfiable core [2023-11-26 10:44:44,714 INFO L285 TraceCheckSpWp]: Computing forward predicates...