./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB --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 3cf3add05c45b0b04bd0d1457ef1e7330de70f3c21c667f6683e915324786bcc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:36:27,998 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:36:28,097 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:36:28,106 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:36:28,106 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:36:28,153 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:36:28,153 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:36:28,154 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:36:28,154 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:36:28,154 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:36:28,154 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:36:28,154 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:36:28,155 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:36:28,155 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:36:28,155 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:36:28,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:36:28,155 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:36:28,155 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:36:28,157 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:36:28,157 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:36:28,158 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:36:28,158 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:36:28,158 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:36:28,158 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:36:28,158 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:36:28,158 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:36:28,158 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:36:28,158 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:36:28,158 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:36:28,158 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:36:28,159 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:36:28,159 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:36:28,159 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:36:28,159 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:36:28,159 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:36:28,160 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:36:28,160 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:36:28,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:36:28,160 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:36:28,160 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:36:28,160 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:36:28,160 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:36:28,160 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:36:28,160 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:36:28,160 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:36:28,160 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:36:28,161 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:36:28,161 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:36:28,161 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 3cf3add05c45b0b04bd0d1457ef1e7330de70f3c21c667f6683e915324786bcc [2024-11-27 23:36:28,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:36:28,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:36:28,522 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:36:28,524 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:36:28,524 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:36:28,526 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i [2024-11-27 23:36:31,463 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/data/26ef7e5cc/021b661238cc40209d159a142021a151/FLAG4dbf4bf87 [2024-11-27 23:36:31,745 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:36:31,746 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i [2024-11-27 23:36:31,779 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/data/26ef7e5cc/021b661238cc40209d159a142021a151/FLAG4dbf4bf87 [2024-11-27 23:36:31,808 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/data/26ef7e5cc/021b661238cc40209d159a142021a151 [2024-11-27 23:36:31,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:36:31,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:36:31,816 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:36:31,816 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:36:31,822 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:36:31,823 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:36:31" (1/1) ... [2024-11-27 23:36:31,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc9b5c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:31, skipping insertion in model container [2024-11-27 23:36:31,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:36:31" (1/1) ... [2024-11-27 23:36:31,845 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:36:32,030 WARN L250 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_f0c742ea-3c99-443f-9edf-9a4280770dca/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i[915,928] [2024-11-27 23:36:32,089 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:36:32,102 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:36:32,113 WARN L250 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_f0c742ea-3c99-443f-9edf-9a4280770dca/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i[915,928] [2024-11-27 23:36:32,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:36:32,159 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:36:32,159 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32 WrapperNode [2024-11-27 23:36:32,161 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:36:32,162 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:36:32,162 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:36:32,162 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:36:32,175 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,187 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,223 INFO L138 Inliner]: procedures = 26, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 101 [2024-11-27 23:36:32,227 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:36:32,227 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:36:32,227 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:36:32,227 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:36:32,245 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,246 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,252 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,271 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]. [2024-11-27 23:36:32,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,276 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,282 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,288 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,289 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,290 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,295 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:36:32,296 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:36:32,300 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:36:32,300 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:36:32,301 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (1/1) ... [2024-11-27 23:36:32,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:36:32,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:36:32,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:36:32,340 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:36:32,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:36:32,365 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:36:32,365 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:36:32,365 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:36:32,365 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:36:32,365 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:36:32,429 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:36:32,431 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:36:32,660 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-11-27 23:36:32,660 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:36:32,672 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:36:32,672 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:36:32,673 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:32 BoogieIcfgContainer [2024-11-27 23:36:32,673 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:36:32,676 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:36:32,676 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:36:32,682 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:36:32,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:36:31" (1/3) ... [2024-11-27 23:36:32,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d6bc4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:36:32, skipping insertion in model container [2024-11-27 23:36:32,685 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:32" (2/3) ... [2024-11-27 23:36:32,686 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60d6bc4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:36:32, skipping insertion in model container [2024-11-27 23:36:32,686 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:32" (3/3) ... [2024-11-27 23:36:32,688 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-84.i [2024-11-27 23:36:32,705 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:36:32,707 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-84.i that has 2 procedures, 50 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:36:32,777 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:36:32,797 INFO L333 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, 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;@26d2c421, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:36:32,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:36:32,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 23:36:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-27 23:36:32,814 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:32,814 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1] [2024-11-27 23:36:32,815 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:32,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:32,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1105072272, now seen corresponding path program 1 times [2024-11-27 23:36:32,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:32,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400830987] [2024-11-27 23:36:32,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:32,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:32,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-27 23:36:33,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:36:33,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400830987] [2024-11-27 23:36:33,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400830987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:33,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1363862667] [2024-11-27 23:36:33,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:33,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:36:33,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:36:33,070 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:36:33,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:36:33,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:33,179 INFO L256 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:36:33,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:33,208 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-27 23:36:33,208 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:36:33,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1363862667] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:36:33,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:36:33,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-27 23:36:33,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990219471] [2024-11-27 23:36:33,212 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:33,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:36:33,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:36:33,255 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:36:33,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:36:33,258 INFO L87 Difference]: Start difference. First operand has 50 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 37 states have internal predecessors, (49), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 23:36:33,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:33,281 INFO L93 Difference]: Finished difference Result 93 states and 147 transitions. [2024-11-27 23:36:33,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:36:33,284 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) Word has length 74 [2024-11-27 23:36:33,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:33,290 INFO L225 Difference]: With dead ends: 93 [2024-11-27 23:36:33,290 INFO L226 Difference]: Without dead ends: 46 [2024-11-27 23:36:33,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:36:33,297 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 62 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:33,298 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:36:33,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-11-27 23:36:33,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-11-27 23:36:33,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 33 states have (on average 1.2121212121212122) internal successors, (40), 33 states have internal predecessors, (40), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 23:36:33,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 62 transitions. [2024-11-27 23:36:33,348 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 62 transitions. Word has length 74 [2024-11-27 23:36:33,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:33,348 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 62 transitions. [2024-11-27 23:36:33,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 1 states have return successors, (11), 1 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 23:36:33,349 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 62 transitions. [2024-11-27 23:36:33,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-27 23:36:33,353 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:33,354 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1, 1, 1] [2024-11-27 23:36:33,364 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:36:33,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-27 23:36:33,558 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:33,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:33,559 INFO L85 PathProgramCache]: Analyzing trace with hash -2002271730, now seen corresponding path program 1 times [2024-11-27 23:36:33,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:36:33,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201142157] [2024-11-27 23:36:33,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:33,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:36:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:36:33,666 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:36:33,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:36:33,736 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-27 23:36:33,736 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-27 23:36:33,741 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:36:33,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:36:33,747 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-27 23:36:33,790 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:36:33,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:36:33 BoogieIcfgContainer [2024-11-27 23:36:33,794 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:36:33,794 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:36:33,795 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:36:33,795 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:36:33,796 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:32" (3/4) ... [2024-11-27 23:36:33,798 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-27 23:36:33,799 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:36:33,800 INFO L158 Benchmark]: Toolchain (without parser) took 1986.74ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 74.4MB in the end (delta: 19.5MB). Peak memory consumption was 13.1MB. Max. memory is 16.1GB. [2024-11-27 23:36:33,801 INFO L158 Benchmark]: CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:36:33,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 345.26ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 81.9MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:36:33,802 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.14ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:36:33,802 INFO L158 Benchmark]: Boogie Preprocessor took 67.80ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:36:33,802 INFO L158 Benchmark]: RCFGBuilder took 377.25ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 63.3MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:36:33,803 INFO L158 Benchmark]: TraceAbstraction took 1118.34ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 74.6MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:36:33,803 INFO L158 Benchmark]: Witness Printer took 5.04ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 74.4MB in the end (delta: 227.5kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:36:33,805 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.47ms. Allocated memory is still 167.8MB. Free memory is still 104.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 345.26ms. Allocated memory is still 117.4MB. Free memory was 93.8MB in the beginning and 81.9MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.14ms. Allocated memory is still 117.4MB. Free memory was 81.9MB in the beginning and 80.0MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 67.80ms. Allocated memory is still 117.4MB. Free memory was 80.0MB in the beginning and 78.1MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 377.25ms. Allocated memory is still 117.4MB. Free memory was 78.1MB in the beginning and 63.3MB in the end (delta: 14.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1118.34ms. Allocated memory is still 117.4MB. Free memory was 62.7MB in the beginning and 74.6MB in the end (delta: -11.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.04ms. Allocated memory is still 117.4MB. Free memory was 74.6MB in the beginning and 74.4MB in the end (delta: 227.5kB). 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 63, overapproximation of someBinaryFLOATComparisonOperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] unsigned char var_1_1 = 1; [L23] unsigned short int var_1_2 = 128; [L24] unsigned short int var_1_3 = 0; [L25] unsigned char var_1_4 = 0; [L26] unsigned char var_1_5 = 1; [L27] unsigned char var_1_6 = 0; [L28] float var_1_7 = 49.5; [L29] float var_1_8 = 16.25; VAL [isInitial=0, var_1_1=1, var_1_2=128, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L67] isInitial = 1 [L68] FCALL initially() [L70] FCALL updateLastVariables() [L71] CALL updateVariables() [L42] var_1_2 = __VERIFIER_nondet_ushort() [L43] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L43] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L44] CALL assume_abort_if_not(var_1_2 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L44] RET assume_abort_if_not(var_1_2 <= 65535) VAL [isInitial=1, var_1_1=1, var_1_3=0, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L45] var_1_3 = __VERIFIER_nondet_ushort() [L46] CALL assume_abort_if_not(var_1_3 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L46] RET assume_abort_if_not(var_1_3 >= 0) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L47] CALL assume_abort_if_not(var_1_3 <= 65535) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L47] RET assume_abort_if_not(var_1_3 <= 65535) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L48] var_1_4 = __VERIFIER_nondet_uchar() [L49] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L49] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=1, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L50] CALL assume_abort_if_not(var_1_4 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L50] RET assume_abort_if_not(var_1_4 <= 0) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L51] var_1_5 = __VERIFIER_nondet_uchar() [L52] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L52] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L53] CALL assume_abort_if_not(var_1_5 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L53] RET assume_abort_if_not(var_1_5 <= 1) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L54] var_1_6 = __VERIFIER_nondet_uchar() [L55] CALL assume_abort_if_not(var_1_6 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_7=99/2, var_1_8=65/4] [L55] RET assume_abort_if_not(var_1_6 >= 0) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_7=99/2, var_1_8=65/4] [L56] CALL assume_abort_if_not(var_1_6 <= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L56] RET assume_abort_if_not(var_1_6 <= 0) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2, var_1_8=65/4] [L57] var_1_8 = __VERIFIER_nondet_float() [L58] CALL assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2] [L58] RET assume_abort_if_not((var_1_8 >= -922337.2036854765600e+13F && var_1_8 <= -1.0e-20F) || (var_1_8 <= 9223372.036854765600e+12F && var_1_8 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=1, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2] [L71] RET updateVariables() [L72] CALL step() [L33] unsigned short int stepLocal_0 = var_1_3; VAL [isInitial=1, stepLocal_0=4, var_1_1=1, var_1_3=4, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2] [L34] COND FALSE !(var_1_2 == stepLocal_0) [L37] var_1_1 = (var_1_4 && (var_1_5 && var_1_6)) VAL [isInitial=1, var_1_1=0, var_1_2=2, var_1_3=4, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=99/2] [L39] var_1_7 = var_1_8 VAL [isInitial=1, var_1_1=0, var_1_2=2, var_1_3=4, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=133, var_1_8=133] [L72] RET step() [L73] CALL, EXPR property() [L63] EXPR (var_1_2 == var_1_3) ? (var_1_1 == ((unsigned char) ((var_1_3 > (50 ^ var_1_2)) && var_1_4))) : (var_1_1 == ((unsigned char) (var_1_4 && (var_1_5 && var_1_6)))) VAL [isInitial=1, var_1_1=0, var_1_2=2, var_1_3=4, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=133, var_1_8=133] [L63-L64] return ((var_1_2 == var_1_3) ? (var_1_1 == ((unsigned char) ((var_1_3 > (50 ^ var_1_2)) && var_1_4))) : (var_1_1 == ((unsigned char) (var_1_4 && (var_1_5 && var_1_6))))) && (var_1_7 == ((float) var_1_8)) ; [L73] RET, EXPR property() [L73] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=0, var_1_2=2, var_1_3=4, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=133, var_1_8=133] [L19] reach_error() VAL [isInitial=1, var_1_1=0, var_1_2=2, var_1_3=4, var_1_4=0, var_1_5=1, var_1_6=0, var_1_7=133, var_1_8=133] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 11, 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, 62 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 62 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=50occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 222 NumberOfCodeBlocks, 222 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 146 ConstructedInterpolants, 0 QuantifiedInterpolants, 146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 172 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 420/440 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, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-27 23:36:33,828 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with 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/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB --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 3cf3add05c45b0b04bd0d1457ef1e7330de70f3c21c667f6683e915324786bcc --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:36:36,462 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:36:36,569 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-27 23:36:36,578 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:36:36,579 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:36:36,634 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:36:36,635 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:36:36,635 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:36:36,635 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:36:36,635 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:36:36,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:36:36,637 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:36:36,642 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:36:36,642 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:36:36,642 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:36:36,642 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:36:36,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:36:36,643 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:36:36,643 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:36:36,643 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:36:36,643 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:36:36,643 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:36:36,643 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:36:36,643 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-27 23:36:36,643 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-27 23:36:36,643 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-27 23:36:36,643 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:36:36,644 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:36:36,644 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:36:36,644 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:36:36,644 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:36:36,644 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:36:36,644 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:36:36,644 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:36:36,644 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:36:36,644 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:36:36,645 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:36:36,645 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:36:36,645 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:36:36,645 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:36:36,645 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:36:36,645 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:36:36,645 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:36:36,645 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:36:36,655 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-27 23:36:36,655 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-27 23:36:36,655 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:36:36,655 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:36:36,655 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:36:36,655 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:36:36,655 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 3cf3add05c45b0b04bd0d1457ef1e7330de70f3c21c667f6683e915324786bcc [2024-11-27 23:36:36,964 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:36:36,977 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:36:36,979 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:36:36,982 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:36:36,982 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:36:36,983 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i [2024-11-27 23:36:40,103 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/data/ea3f5f118/527228d96b364a18836eee79e3224dce/FLAGe1b774b7b [2024-11-27 23:36:40,426 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:36:40,426 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i [2024-11-27 23:36:40,438 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/data/ea3f5f118/527228d96b364a18836eee79e3224dce/FLAGe1b774b7b [2024-11-27 23:36:40,463 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/data/ea3f5f118/527228d96b364a18836eee79e3224dce [2024-11-27 23:36:40,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:36:40,468 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:36:40,471 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:36:40,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:36:40,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:36:40,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,479 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@230fc085 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40, skipping insertion in model container [2024-11-27 23:36:40,479 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,499 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:36:40,689 WARN L250 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_f0c742ea-3c99-443f-9edf-9a4280770dca/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i[915,928] [2024-11-27 23:36:40,743 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:36:40,762 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:36:40,774 WARN L250 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_f0c742ea-3c99-443f-9edf-9a4280770dca/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-84.i[915,928] [2024-11-27 23:36:40,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:36:40,810 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:36:40,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40 WrapperNode [2024-11-27 23:36:40,811 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:36:40,813 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:36:40,814 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:36:40,814 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:36:40,820 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,829 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,848 INFO L138 Inliner]: procedures = 27, calls = 24, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 75 [2024-11-27 23:36:40,848 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:36:40,849 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:36:40,849 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:36:40,849 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:36:40,858 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,873 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]. [2024-11-27 23:36:40,873 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,873 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,886 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,887 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,895 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:36:40,896 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:36:40,896 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:36:40,896 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:36:40,897 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (1/1) ... [2024-11-27 23:36:40,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:36:40,914 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:36:40,925 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:36:40,927 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:36:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:36:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-27 23:36:40,946 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-27 23:36:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-27 23:36:40,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:36:40,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:36:41,010 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:36:41,013 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:36:41,214 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-27 23:36:41,215 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:36:41,225 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:36:41,225 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:36:41,226 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:41 BoogieIcfgContainer [2024-11-27 23:36:41,226 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:36:41,228 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:36:41,228 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:36:41,233 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:36:41,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:36:40" (1/3) ... [2024-11-27 23:36:41,234 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451b1838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:36:41, skipping insertion in model container [2024-11-27 23:36:41,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:36:40" (2/3) ... [2024-11-27 23:36:41,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@451b1838 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:36:41, skipping insertion in model container [2024-11-27 23:36:41,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:41" (3/3) ... [2024-11-27 23:36:41,236 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-84.i [2024-11-27 23:36:41,252 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:36:41,254 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-84.i that has 2 procedures, 38 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:36:41,307 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:36:41,319 INFO L333 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, 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;@5e00cdb4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:36:41,319 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:36:41,323 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 23:36:41,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-27 23:36:41,332 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:41,333 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1] [2024-11-27 23:36:41,333 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:41,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:41,340 INFO L85 PathProgramCache]: Analyzing trace with hash 228508198, now seen corresponding path program 1 times [2024-11-27 23:36:41,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:36:41,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541002226] [2024-11-27 23:36:41,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:41,352 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 [2024-11-27 23:36:41,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:36:41,356 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 23:36:41,358 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 23:36:41,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:41,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-27 23:36:41,541 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:41,591 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-27 23:36:41,591 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:36:41,592 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:36:41,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541002226] [2024-11-27 23:36:41,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541002226] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:36:41,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:36:41,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:36:41,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707447247] [2024-11-27 23:36:41,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:41,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-27 23:36:41,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:36:41,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-27 23:36:41,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:36:41,624 INFO L87 Difference]: Start difference. First operand has 38 states, 24 states have (on average 1.25) internal successors, (30), 25 states have internal predecessors, (30), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 23:36:41,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:41,662 INFO L93 Difference]: Finished difference Result 69 states and 109 transitions. [2024-11-27 23:36:41,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-27 23:36:41,666 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 72 [2024-11-27 23:36:41,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:41,672 INFO L225 Difference]: With dead ends: 69 [2024-11-27 23:36:41,672 INFO L226 Difference]: Without dead ends: 34 [2024-11-27 23:36:41,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-27 23:36:41,679 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:41,680 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-27 23:36:41,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-27 23:36:41,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-27 23:36:41,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 21 states have (on average 1.0952380952380953) internal successors, (23), 21 states have internal predecessors, (23), 11 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 23:36:41,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2024-11-27 23:36:41,716 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 72 [2024-11-27 23:36:41,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:41,717 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2024-11-27 23:36:41,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 2 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-27 23:36:41,717 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2024-11-27 23:36:41,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-27 23:36:41,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:41,720 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1] [2024-11-27 23:36:41,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:36:41,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 23:36:41,921 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:41,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:41,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1115505884, now seen corresponding path program 1 times [2024-11-27 23:36:41,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:36:41,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [204659051] [2024-11-27 23:36:41,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:41,923 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 [2024-11-27 23:36:41,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:36:41,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 23:36:41,934 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 23:36:42,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:42,043 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-27 23:36:42,054 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:44,337 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 135 proven. 12 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-27 23:36:44,338 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:45,279 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:36:45,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [204659051] [2024-11-27 23:36:45,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [204659051] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:45,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [322370881] [2024-11-27 23:36:45,280 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:45,280 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-27 23:36:45,280 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-27 23:36:45,285 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-27 23:36:45,288 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-27 23:36:45,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:45,594 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-27 23:36:45,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:46,749 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 135 proven. 12 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-27 23:36:46,750 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:47,551 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 23:36:47,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [322370881] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:47,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-27 23:36:47,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [12, 13] total 29 [2024-11-27 23:36:47,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071455446] [2024-11-27 23:36:47,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:47,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:36:47,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:36:47,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:36:47,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=178, Invalid=752, Unknown=0, NotChecked=0, Total=930 [2024-11-27 23:36:47,558 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 23:36:48,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:48,094 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2024-11-27 23:36:48,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:36:48,095 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2024-11-27 23:36:48,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:48,096 INFO L225 Difference]: With dead ends: 49 [2024-11-27 23:36:48,098 INFO L226 Difference]: Without dead ends: 47 [2024-11-27 23:36:48,099 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=213, Invalid=909, Unknown=0, NotChecked=0, Total=1122 [2024-11-27 23:36:48,100 INFO L435 NwaCegarLoop]: 38 mSDtfsCounter, 79 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:48,101 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 133 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:36:48,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-27 23:36:48,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2024-11-27 23:36:48,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 28 states have (on average 1.0714285714285714) internal successors, (30), 28 states have internal predecessors, (30), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-27 23:36:48,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2024-11-27 23:36:48,122 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 72 [2024-11-27 23:36:48,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:48,123 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2024-11-27 23:36:48,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 23:36:48,124 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2024-11-27 23:36:48,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-27 23:36:48,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:36:48,125 INFO L218 NwaCegarLoop]: trace histogram [11, 11, 11, 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, 1, 1, 1] [2024-11-27 23:36:48,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-27 23:36:48,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/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)] Ended with exit code 0 [2024-11-27 23:36:48,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 23:36:48,526 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:36:48,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:36:48,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1058247582, now seen corresponding path program 1 times [2024-11-27 23:36:48,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-27 23:36:48,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219702973] [2024-11-27 23:36:48,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:36:48,528 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 [2024-11-27 23:36:48,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-27 23:36:48,530 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/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) [2024-11-27 23:36:48,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/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 (5)] Waiting until timeout for monitored process [2024-11-27 23:36:48,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:36:48,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-27 23:36:48,625 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:36:49,663 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 135 proven. 12 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2024-11-27 23:36:49,663 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:36:50,827 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 190 trivial. 0 not checked. [2024-11-27 23:36:50,827 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-27 23:36:50,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219702973] [2024-11-27 23:36:50,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219702973] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-27 23:36:50,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:36:50,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 22 [2024-11-27 23:36:50,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046148132] [2024-11-27 23:36:50,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:36:50,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-27 23:36:50,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-27 23:36:50,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-27 23:36:50,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=368, Unknown=0, NotChecked=0, Total=462 [2024-11-27 23:36:50,829 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 23:36:51,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:36:51,379 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2024-11-27 23:36:51,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-27 23:36:51,380 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) Word has length 72 [2024-11-27 23:36:51,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:36:51,380 INFO L225 Difference]: With dead ends: 47 [2024-11-27 23:36:51,381 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 23:36:51,381 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=110, Invalid=442, Unknown=0, NotChecked=0, Total=552 [2024-11-27 23:36:51,382 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 50 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 129 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-27 23:36:51,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 129 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-27 23:36:51,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 23:36:51,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 23:36:51,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:36:51,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 23:36:51,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2024-11-27 23:36:51,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:36:51,384 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:36:51,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.3) internal successors, (23), 9 states have internal predecessors, (23), 1 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 1 states have call successors, (11) [2024-11-27 23:36:51,385 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 23:36:51,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 23:36:51,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:36:51,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/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 (5)] Forceful destruction successful, exit code 0 [2024-11-27 23:36:51,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/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 [2024-11-27 23:36:51,593 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-27 23:36:51,595 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 23:36:51,940 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:36:51,953 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-27 23:36:51,954 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-27 23:36:51,956 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-27 23:36:51,957 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Missing case for function ~fp.eq~32 [2024-11-27 23:36:51,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:36:51 BoogieIcfgContainer [2024-11-27 23:36:51,959 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:36:51,960 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:36:51,961 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:36:51,962 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:36:51,962 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:36:41" (3/4) ... [2024-11-27 23:36:51,964 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:36:51,970 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-27 23:36:51,973 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-27 23:36:51,975 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-27 23:36:51,975 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 23:36:51,975 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 23:36:52,065 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:36:52,066 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:36:52,066 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:36:52,068 INFO L158 Benchmark]: Toolchain (without parser) took 11598.84ms. Allocated memory was 117.4MB in the beginning and 318.8MB in the end (delta: 201.3MB). Free memory was 92.0MB in the beginning and 228.4MB in the end (delta: -136.4MB). Peak memory consumption was 64.5MB. Max. memory is 16.1GB. [2024-11-27 23:36:52,068 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:36:52,068 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.04ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 79.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:36:52,069 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.24ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:36:52,069 INFO L158 Benchmark]: Boogie Preprocessor took 46.53ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:36:52,070 INFO L158 Benchmark]: RCFGBuilder took 330.08ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 63.5MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:36:52,071 INFO L158 Benchmark]: TraceAbstraction took 10731.83ms. Allocated memory was 117.4MB in the beginning and 318.8MB in the end (delta: 201.3MB). Free memory was 63.0MB in the beginning and 232.5MB in the end (delta: -169.5MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2024-11-27 23:36:52,071 INFO L158 Benchmark]: Witness Printer took 106.07ms. Allocated memory is still 318.8MB. Free memory was 232.5MB in the beginning and 228.4MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:36:52,073 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 117.4MB. Free memory is still 84.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 341.04ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 79.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.24ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 78.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 46.53ms. Allocated memory is still 117.4MB. Free memory was 78.3MB in the beginning and 76.4MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 330.08ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 63.5MB in the end (delta: 12.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 10731.83ms. Allocated memory was 117.4MB in the beginning and 318.8MB in the end (delta: 201.3MB). Free memory was 63.0MB in the beginning and 232.5MB in the end (delta: -169.5MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. * Witness Printer took 106.07ms. Allocated memory is still 318.8MB. Free memory was 232.5MB in the beginning and 228.4MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Missing case for function ~fp.eq~32 * 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 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.3s, OverallIterations: 3, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 131 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 129 mSDsluCounter, 307 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 188 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 221 IncrementalHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 119 mSDtfsCounter, 221 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 440 GetRequests, 385 SyntacticMatches, 1 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 551 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=42occurred in iteration=2, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 7.5s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 426 ConstructedInterpolants, 5 QuantifiedInterpolants, 2006 SizeOfPredicates, 38 NumberOfNonLiveVariables, 472 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 1284/1320 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, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-27 23:36:52,098 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f0c742ea-3c99-443f-9edf-9a4280770dca/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE