./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.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_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1 --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 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:02:28,548 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:02:28,607 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 14:02:28,611 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:02:28,612 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:02:28,633 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:02:28,634 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:02:28,634 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:02:28,634 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:02:28,635 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:02:28,635 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:02:28,635 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:02:28,635 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:02:28,635 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:02:28,635 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:02:28,636 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:02:28,636 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:02:28,636 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:02:28,636 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:02:28,636 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:02:28,636 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:02:28,636 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:02:28,636 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:02:28,636 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:02:28,636 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:02:28,636 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:02:28,636 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:02:28,637 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:02:28,637 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:02:28,637 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:02:28,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:02:28,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:02:28,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:02:28,637 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:02:28,637 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:02:28,637 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:02:28,637 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:02:28,637 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:02:28,638 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:02:28,638 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:02:28,638 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:02:28,638 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:02:28,638 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 14:02:28,638 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 14:02:28,638 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:02:28,638 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:02:28,638 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:02:28,638 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:02:28,638 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_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1 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 -> 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b [2024-12-02 14:02:28,866 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:02:28,874 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:02:28,876 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:02:28,877 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:02:28,878 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:02:28,879 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2024-12-02 14:02:31,491 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/data/c6c821ea5/291d3a4de99a4746ab58785605742194/FLAG7c2cbe88f [2024-12-02 14:02:31,695 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:02:31,695 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2024-12-02 14:02:31,703 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/data/c6c821ea5/291d3a4de99a4746ab58785605742194/FLAG7c2cbe88f [2024-12-02 14:02:32,076 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/data/c6c821ea5/291d3a4de99a4746ab58785605742194 [2024-12-02 14:02:32,078 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:02:32,080 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:02:32,081 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:02:32,081 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:02:32,084 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:02:32,084 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,085 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e1ee3ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32, skipping insertion in model container [2024-12-02 14:02:32,085 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,097 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:02:32,197 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_239e86df-bce5-4baf-bc57-2a5c29b723ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2024-12-02 14:02:32,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:02:32,231 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:02:32,239 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_239e86df-bce5-4baf-bc57-2a5c29b723ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2024-12-02 14:02:32,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:02:32,263 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:02:32,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32 WrapperNode [2024-12-02 14:02:32,263 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:02:32,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:02:32,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:02:32,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:02:32,269 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,288 INFO L138 Inliner]: procedures = 26, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 67 [2024-12-02 14:02:32,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:02:32,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:02:32,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:02:32,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:02:32,296 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,296 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,308 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]. [2024-12-02 14:02:32,308 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,308 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,312 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,313 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,316 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,317 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,317 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,319 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:02:32,320 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:02:32,320 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:02:32,320 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:02:32,321 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (1/1) ... [2024-12-02 14:02:32,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:02:32,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:02:32,345 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:02:32,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:02:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:02:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:02:32,370 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:02:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:02:32,370 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:02:32,370 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:02:32,426 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:02:32,427 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:02:32,542 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-02 14:02:32,542 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:02:32,550 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:02:32,550 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:02:32,550 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:02:32 BoogieIcfgContainer [2024-12-02 14:02:32,551 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:02:32,552 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:02:32,552 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:02:32,555 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:02:32,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:02:32" (1/3) ... [2024-12-02 14:02:32,556 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e220aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:02:32, skipping insertion in model container [2024-12-02 14:02:32,556 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:32" (2/3) ... [2024-12-02 14:02:32,557 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e220aec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:02:32, skipping insertion in model container [2024-12-02 14:02:32,557 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:02:32" (3/3) ... [2024-12-02 14:02:32,558 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-12.i [2024-12-02 14:02:32,568 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:02:32,570 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-12.i that has 2 procedures, 30 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:02:32,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:02:32,620 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;@1f3be687, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:02:32,621 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:02:32,624 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 14:02:32,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 14:02:32,630 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:02:32,630 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-12-02 14:02:32,630 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:02:32,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:02:32,635 INFO L85 PathProgramCache]: Analyzing trace with hash -1159997385, now seen corresponding path program 1 times [2024-12-02 14:02:32,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:02:32,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545474104] [2024-12-02 14:02:32,640 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:32,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:02:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:02:32,787 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-02 14:02:32,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 14:02:32,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545474104] [2024-12-02 14:02:32,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545474104] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:02:32,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1782129153] [2024-12-02 14:02:32,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:32,788 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:02:32,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:02:32,790 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:02:32,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:02:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:02:32,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:02:32,875 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:02:32,888 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-12-02 14:02:32,888 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:02:32,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1782129153] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:02:32,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 14:02:32,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 14:02:32,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714840045] [2024-12-02 14:02:32,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:02:32,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:02:32,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 14:02:32,908 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:02:32,909 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:02:32,911 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 14:02:32,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:02:32,924 INFO L93 Difference]: Finished difference Result 53 states and 78 transitions. [2024-12-02 14:02:32,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:02:32,926 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-12-02 14:02:32,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:02:32,929 INFO L225 Difference]: With dead ends: 53 [2024-12-02 14:02:32,930 INFO L226 Difference]: Without dead ends: 26 [2024-12-02 14:02:32,931 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:02:32,934 INFO L435 NwaCegarLoop]: 32 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, 32 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 [2024-12-02 14:02:32,934 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:02:32,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-12-02 14:02:32,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-12-02 14:02:32,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 14:02:32,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-12-02 14:02:32,962 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 44 [2024-12-02 14:02:32,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:02:32,963 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-12-02 14:02:32,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 14:02:32,963 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-12-02 14:02:32,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 14:02:32,964 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:02:32,964 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-12-02 14:02:32,970 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:02:33,165 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:02:33,165 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:02:33,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:02:33,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1413855497, now seen corresponding path program 1 times [2024-12-02 14:02:33,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 14:02:33,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419240202] [2024-12-02 14:02:33,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:33,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:02:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:02:33,237 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:02:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:02:33,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-02 14:02:33,291 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-02 14:02:33,292 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 14:02:33,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 14:02:33,296 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-12-02 14:02:33,328 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:02:33,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:02:33 BoogieIcfgContainer [2024-12-02 14:02:33,331 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:02:33,332 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:02:33,332 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:02:33,332 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:02:33,332 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:02:32" (3/4) ... [2024-12-02 14:02:33,334 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-02 14:02:33,335 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:02:33,336 INFO L158 Benchmark]: Toolchain (without parser) took 1256.19ms. Allocated memory is still 142.6MB. Free memory was 118.2MB in the beginning and 107.8MB in the end (delta: 10.4MB). Peak memory consumption was 4.4MB. Max. memory is 16.1GB. [2024-12-02 14:02:33,336 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:02:33,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 183.05ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 106.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:02:33,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.83ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 104.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:02:33,337 INFO L158 Benchmark]: Boogie Preprocessor took 29.78ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:02:33,337 INFO L158 Benchmark]: RCFGBuilder took 231.05ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 91.8MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:02:33,337 INFO L158 Benchmark]: TraceAbstraction took 779.01ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 107.9MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:02:33,338 INFO L158 Benchmark]: Witness Printer took 3.45ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 107.8MB in the end (delta: 13.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:02:33,339 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 183.05ms. Allocated memory is still 142.6MB. Free memory was 118.0MB in the beginning and 106.5MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.83ms. Allocated memory is still 142.6MB. Free memory was 106.5MB in the beginning and 104.8MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 29.78ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 103.2MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 231.05ms. Allocated memory is still 142.6MB. Free memory was 103.2MB in the beginning and 91.8MB in the end (delta: 11.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 779.01ms. Allocated memory is still 142.6MB. Free memory was 91.3MB in the beginning and 107.9MB in the end (delta: -16.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.45ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 107.8MB in the end (delta: 13.8kB). 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 someBinaryDOUBLEComparisonOperation at line 58. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] signed char var_1_1 = 4; [L23] signed char var_1_4 = -1; [L24] signed char var_1_5 = 100; [L25] signed long int var_1_6 = 1000; [L26] double var_1_7 = 4.5; [L27] unsigned char var_1_8 = 1; [L28] unsigned char var_1_9 = 0; [L29] signed long int var_1_10 = 256; [L30] signed char last_1_var_1_1 = 4; VAL [isInitial=0, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=-1, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L62] isInitial = 1 [L63] FCALL initially() [L65] CALL updateLastVariables() [L55] last_1_var_1_1 = var_1_1 VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=-1, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L65] RET updateLastVariables() [L66] CALL updateVariables() [L44] var_1_4 = __VERIFIER_nondet_char() [L45] CALL assume_abort_if_not(var_1_4 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L45] RET assume_abort_if_not(var_1_4 >= -126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L46] CALL assume_abort_if_not(var_1_4 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L46] RET assume_abort_if_not(var_1_4 <= 126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=100, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L47] var_1_5 = __VERIFIER_nondet_char() [L48] CALL assume_abort_if_not(var_1_5 >= -126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L48] RET assume_abort_if_not(var_1_5 >= -126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L49] CALL assume_abort_if_not(var_1_5 <= 126) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L49] RET assume_abort_if_not(var_1_5 <= 126) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L50] var_1_9 = __VERIFIER_nondet_uchar() [L51] CALL assume_abort_if_not(var_1_9 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L51] RET assume_abort_if_not(var_1_9 >= 0) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1] [L52] CALL assume_abort_if_not(var_1_9 <= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L52] RET assume_abort_if_not(var_1_9 <= 0) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=256, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=9/2, var_1_8=1, var_1_9=0] [L66] RET updateVariables() [L67] CALL step() [L34] var_1_7 = 199.5 [L35] var_1_8 = var_1_9 [L36] var_1_10 = var_1_5 [L37] signed long int stepLocal_0 = var_1_10; VAL [isInitial=1, last_1_var_1_1=4, stepLocal_0=4, var_1_10=4, var_1_1=4, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=399/2, var_1_8=0, var_1_9=0] [L38] COND TRUE stepLocal_0 >= last_1_var_1_1 [L39] var_1_1 = (((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) < 0 ) ? -((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) : ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=1000, var_1_7=399/2, var_1_8=0, var_1_9=0] [L41] var_1_6 = ((((var_1_4) > (var_1_1)) ? (var_1_4) : (var_1_1))) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] [L67] RET step() [L68] CALL, EXPR property() [L58-L59] return (((((var_1_10 >= last_1_var_1_1) ? (var_1_1 == ((signed char) (((((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) < 0 ) ? -((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))) : ((((var_1_4) < (var_1_5)) ? (var_1_4) : (var_1_5))))))) : 1) && (var_1_6 == ((signed long int) ((((var_1_4) > (var_1_1)) ? (var_1_4) : (var_1_1)))))) && (var_1_7 == ((double) 199.5))) && (var_1_8 == ((unsigned char) var_1_9))) && (var_1_10 == ((signed long int) var_1_5)) ; VAL [\result=0, isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] [L68] RET, EXPR property() [L68] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] [L19] reach_error() VAL [isInitial=1, last_1_var_1_1=4, var_1_10=4, var_1_1=0, var_1_4=0, var_1_5=4, var_1_6=0, var_1_7=399/2, var_1_8=0, var_1_9=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 32 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, 32 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 86 ConstructedInterpolants, 0 QuantifiedInterpolants, 86 SizeOfPredicates, 0 NumberOfNonLiveVariables, 131 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 110/120 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 [2024-12-02 14:02:33,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1 --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 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:02:35,311 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:02:35,397 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 14:02:35,402 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:02:35,402 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:02:35,423 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:02:35,424 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:02:35,424 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:02:35,424 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:02:35,425 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:02:35,425 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 14:02:35,425 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 14:02:35,425 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:02:35,425 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:02:35,425 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:02:35,425 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:02:35,426 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 14:02:35,426 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:02:35,426 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:02:35,426 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:02:35,426 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 14:02:35,426 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 14:02:35,426 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 14:02:35,426 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 14:02:35,426 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 14:02:35,427 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 14:02:35,427 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:02:35,427 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:02:35,427 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:02:35,427 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:02:35,427 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 14:02:35,427 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:02:35,427 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:02:35,427 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:02:35,427 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:02:35,428 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:02:35,428 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:02:35,428 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 14:02:35,428 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 14:02:35,428 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:02:35,428 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:02:35,428 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 14:02:35,428 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 14:02:35,428 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 14:02:35,429 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 14:02:35,429 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 14:02:35,429 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 14:02:35,429 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 14:02:35,429 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 14:02:35,429 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 14:02:35,429 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_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1 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 -> 148999594253053f645653c1095151edf31299f622d6000962ab26f32e38bd4b [2024-12-02 14:02:35,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:02:35,662 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:02:35,664 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:02:35,665 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:02:35,665 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:02:35,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2024-12-02 14:02:38,362 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/data/6d78131de/19ff5d7083474174b8e31f84b6a1276e/FLAG879713432 [2024-12-02 14:02:38,579 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:02:38,580 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i [2024-12-02 14:02:38,587 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/data/6d78131de/19ff5d7083474174b8e31f84b6a1276e/FLAG879713432 [2024-12-02 14:02:38,956 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/data/6d78131de/19ff5d7083474174b8e31f84b6a1276e [2024-12-02 14:02:38,957 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:02:38,958 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:02:38,959 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:02:38,959 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:02:38,962 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:02:38,963 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:02:38" (1/1) ... [2024-12-02 14:02:38,963 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a314916 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:38, skipping insertion in model container [2024-12-02 14:02:38,963 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:02:38" (1/1) ... [2024-12-02 14:02:38,973 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:02:39,076 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_239e86df-bce5-4baf-bc57-2a5c29b723ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2024-12-02 14:02:39,100 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:02:39,111 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:02:39,121 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_239e86df-bce5-4baf-bc57-2a5c29b723ce/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-12.i[915,928] [2024-12-02 14:02:39,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:02:39,143 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:02:39,143 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39 WrapperNode [2024-12-02 14:02:39,144 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:02:39,144 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:02:39,144 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:02:39,144 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:02:39,150 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,157 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,173 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 65 [2024-12-02 14:02:39,173 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:02:39,174 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:02:39,174 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:02:39,174 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:02:39,180 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,180 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,183 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,191 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]. [2024-12-02 14:02:39,191 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,192 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,198 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,199 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,202 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,204 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,205 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:02:39,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:02:39,207 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:02:39,207 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:02:39,208 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (1/1) ... [2024-12-02 14:02:39,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 14:02:39,225 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:02:39,234 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 14:02:39,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 14:02:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:02:39,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 14:02:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 14:02:39,257 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 14:02:39,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:02:39,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:02:39,310 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:02:39,311 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:02:39,440 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-12-02 14:02:39,440 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:02:39,449 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:02:39,449 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 14:02:39,449 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:02:39 BoogieIcfgContainer [2024-12-02 14:02:39,449 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:02:39,452 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 14:02:39,452 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 14:02:39,457 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 14:02:39,457 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 02:02:38" (1/3) ... [2024-12-02 14:02:39,457 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586cb276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:02:39, skipping insertion in model container [2024-12-02 14:02:39,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:02:39" (2/3) ... [2024-12-02 14:02:39,458 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@586cb276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 02:02:39, skipping insertion in model container [2024-12-02 14:02:39,458 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:02:39" (3/3) ... [2024-12-02 14:02:39,459 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-12.i [2024-12-02 14:02:39,472 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 14:02:39,473 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-12.i that has 2 procedures, 30 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 14:02:39,516 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 14:02:39,526 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;@6f68db2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 14:02:39,526 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 14:02:39,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 14:02:39,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 14:02:39,534 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:02:39,534 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-12-02 14:02:39,535 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:02:39,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:02:39,539 INFO L85 PathProgramCache]: Analyzing trace with hash -1159997385, now seen corresponding path program 1 times [2024-12-02 14:02:39,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:02:39,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [102250345] [2024-12-02 14:02:39,546 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:39,546 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 [2024-12-02 14:02:39,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:02:39,548 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:02:39,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:02:39,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:02:39,641 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 14:02:39,645 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:02:39,667 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-12-02 14:02:39,667 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:02:39,668 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:02:39,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [102250345] [2024-12-02 14:02:39,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [102250345] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:02:39,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:02:39,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 14:02:39,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943099230] [2024-12-02 14:02:39,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:02:39,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 14:02:39,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:02:39,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 14:02:39,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:02:39,687 INFO L87 Difference]: Start difference. First operand has 30 states, 21 states have (on average 1.2857142857142858) internal successors, (27), 22 states have internal predecessors, (27), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 14:02:39,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:02:39,700 INFO L93 Difference]: Finished difference Result 53 states and 78 transitions. [2024-12-02 14:02:39,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 14:02:39,702 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 44 [2024-12-02 14:02:39,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:02:39,706 INFO L225 Difference]: With dead ends: 53 [2024-12-02 14:02:39,706 INFO L226 Difference]: Without dead ends: 26 [2024-12-02 14:02:39,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 14:02:39,710 INFO L435 NwaCegarLoop]: 32 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, 32 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 [2024-12-02 14:02:39,711 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 14:02:39,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2024-12-02 14:02:39,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2024-12-02 14:02:39,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 18 states have internal predecessors, (20), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-12-02 14:02:39,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2024-12-02 14:02:39,741 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 44 [2024-12-02 14:02:39,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:02:39,742 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2024-12-02 14:02:39,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-12-02 14:02:39,742 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2024-12-02 14:02:39,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 14:02:39,744 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:02:39,744 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-12-02 14:02:39,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 14:02:39,944 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:02:39,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:02:39,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:02:39,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1413855497, now seen corresponding path program 1 times [2024-12-02 14:02:39,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:02:39,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396357959] [2024-12-02 14:02:39,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:39,946 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 [2024-12-02 14:02:39,946 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:02:39,948 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:02:39,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:02:40,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:02:40,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 14:02:40,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:02:45,686 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-02 14:02:45,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:02:45,686 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:02:45,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396357959] [2024-12-02 14:02:45,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396357959] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:02:45,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:02:45,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:02:45,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066848007] [2024-12-02 14:02:45,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:02:45,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:02:45,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:02:45,689 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:02:45,689 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:02:45,689 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 14:02:46,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:02:46,035 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2024-12-02 14:02:46,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:02:46,036 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2024-12-02 14:02:46,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:02:46,037 INFO L225 Difference]: With dead ends: 44 [2024-12-02 14:02:46,037 INFO L226 Difference]: Without dead ends: 42 [2024-12-02 14:02:46,037 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:02:46,038 INFO L435 NwaCegarLoop]: 36 mSDtfsCounter, 23 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 161 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:02:46,038 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 161 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:02:46,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2024-12-02 14:02:46,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 38. [2024-12-02 14:02:46,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 27 states have (on average 1.0740740740740742) internal successors, (29), 28 states have internal predecessors, (29), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2024-12-02 14:02:46,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2024-12-02 14:02:46,047 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 44 [2024-12-02 14:02:46,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:02:46,048 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2024-12-02 14:02:46,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.4285714285714284) internal successors, (17), 7 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 14:02:46,048 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2024-12-02 14:02:46,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-12-02 14:02:46,049 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:02:46,049 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-12-02 14:02:46,052 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:02:46,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:02:46,249 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:02:46,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:02:46,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1356597195, now seen corresponding path program 1 times [2024-12-02 14:02:46,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:02:46,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1404877741] [2024-12-02 14:02:46,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:46,251 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 [2024-12-02 14:02:46,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:02:46,253 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:02:46,253 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 14:02:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:02:46,308 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 14:02:46,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:02:49,326 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-12-02 14:02:49,326 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:02:49,327 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:02:49,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1404877741] [2024-12-02 14:02:49,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1404877741] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:02:49,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:02:49,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-02 14:02:49,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72605570] [2024-12-02 14:02:49,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:02:49,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-12-02 14:02:49,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:02:49,328 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-12-02 14:02:49,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:02:49,328 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 14:02:49,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:02:49,586 INFO L93 Difference]: Finished difference Result 66 states and 78 transitions. [2024-12-02 14:02:49,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-02 14:02:49,586 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44 [2024-12-02 14:02:49,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:02:49,587 INFO L225 Difference]: With dead ends: 66 [2024-12-02 14:02:49,587 INFO L226 Difference]: Without dead ends: 64 [2024-12-02 14:02:49,587 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-12-02 14:02:49,588 INFO L435 NwaCegarLoop]: 39 mSDtfsCounter, 14 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 14:02:49,588 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 194 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 14:02:49,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-12-02 14:02:49,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 63. [2024-12-02 14:02:49,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.0681818181818181) internal successors, (47), 45 states have internal predecessors, (47), 14 states have call successors, (14), 4 states have call predecessors, (14), 4 states have return successors, (14), 13 states have call predecessors, (14), 14 states have call successors, (14) [2024-12-02 14:02:49,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 75 transitions. [2024-12-02 14:02:49,597 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 75 transitions. Word has length 44 [2024-12-02 14:02:49,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:02:49,597 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 75 transitions. [2024-12-02 14:02:49,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.8888888888888888) internal successors, (17), 8 states have internal predecessors, (17), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 14:02:49,597 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 75 transitions. [2024-12-02 14:02:49,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-12-02 14:02:49,599 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 14:02:49,599 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 12, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:02:49,602 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 14:02:49,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:02:49,800 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 14:02:49,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:02:49,800 INFO L85 PathProgramCache]: Analyzing trace with hash -272324834, now seen corresponding path program 1 times [2024-12-02 14:02:49,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 14:02:49,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [153483824] [2024-12-02 14:02:49,801 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:02:49,801 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 [2024-12-02 14:02:49,801 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 14:02:49,803 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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) [2024-12-02 14:02:49,804 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:02:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:02:49,868 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-12-02 14:02:49,870 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:02:51,521 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-12-02 14:02:51,521 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 14:02:51,521 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 14:02:51,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [153483824] [2024-12-02 14:02:51,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [153483824] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 14:02:51,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 14:02:51,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 14:02:51,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40630533] [2024-12-02 14:02:51,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 14:02:51,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 14:02:51,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 14:02:51,522 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:02:51,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:02:51,522 INFO L87 Difference]: Start difference. First operand 63 states and 75 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 14:02:51,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:02:51,695 INFO L93 Difference]: Finished difference Result 65 states and 77 transitions. [2024-12-02 14:02:51,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 14:02:51,696 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 85 [2024-12-02 14:02:51,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 14:02:51,697 INFO L225 Difference]: With dead ends: 65 [2024-12-02 14:02:51,697 INFO L226 Difference]: Without dead ends: 0 [2024-12-02 14:02:51,697 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-12-02 14:02:51,698 INFO L435 NwaCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 14:02:51,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 137 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 14:02:51,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-02 14:02:51,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-02 14:02:51,699 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) [2024-12-02 14:02:51,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-02 14:02:51,699 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 85 [2024-12-02 14:02:51,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 14:02:51,699 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-02 14:02:51,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-12-02 14:02:51,700 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-02 14:02:51,700 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-02 14:02:51,702 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-02 14:02:51,705 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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)] Ended with exit code 0 [2024-12-02 14:02:51,903 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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 [2024-12-02 14:02:51,905 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-12-02 14:02:51,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-02 14:02:52,109 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-02 14:02:52,119 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-12-02 14:02:52,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 02:02:52 BoogieIcfgContainer [2024-12-02 14:02:52,122 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-02 14:02:52,122 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:02:52,123 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:02:52,123 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:02:52,123 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:02:39" (3/4) ... [2024-12-02 14:02:52,125 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-02 14:02:52,130 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-12-02 14:02:52,133 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-12-02 14:02:52,134 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-12-02 14:02:52,134 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-02 14:02:52,134 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-02 14:02:52,207 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 14:02:52,208 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-02 14:02:52,208 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:02:52,208 INFO L158 Benchmark]: Toolchain (without parser) took 13249.92ms. Allocated memory was 92.3MB in the beginning and 536.9MB in the end (delta: 444.6MB). Free memory was 69.6MB in the beginning and 272.0MB in the end (delta: -202.5MB). Peak memory consumption was 241.0MB. Max. memory is 16.1GB. [2024-12-02 14:02:52,209 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:02:52,209 INFO L158 Benchmark]: CACSL2BoogieTranslator took 184.61ms. Allocated memory is still 92.3MB. Free memory was 69.4MB in the beginning and 57.2MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:02:52,209 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.15ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 55.8MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:02:52,210 INFO L158 Benchmark]: Boogie Preprocessor took 32.87ms. Allocated memory is still 92.3MB. Free memory was 55.8MB in the beginning and 54.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:02:52,210 INFO L158 Benchmark]: RCFGBuilder took 242.16ms. Allocated memory is still 92.3MB. Free memory was 54.0MB in the beginning and 42.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:02:52,210 INFO L158 Benchmark]: TraceAbstraction took 12670.09ms. Allocated memory was 92.3MB in the beginning and 536.9MB in the end (delta: 444.6MB). Free memory was 42.2MB in the beginning and 276.4MB in the end (delta: -234.2MB). Peak memory consumption was 215.8MB. Max. memory is 16.1GB. [2024-12-02 14:02:52,211 INFO L158 Benchmark]: Witness Printer took 85.22ms. Allocated memory is still 536.9MB. Free memory was 276.4MB in the beginning and 272.0MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:02:52,212 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 184.61ms. Allocated memory is still 92.3MB. Free memory was 69.4MB in the beginning and 57.2MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.15ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 55.8MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.87ms. Allocated memory is still 92.3MB. Free memory was 55.8MB in the beginning and 54.0MB in the end (delta: 1.9MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 242.16ms. Allocated memory is still 92.3MB. Free memory was 54.0MB in the beginning and 42.8MB in the end (delta: 11.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 12670.09ms. Allocated memory was 92.3MB in the beginning and 536.9MB in the end (delta: 444.6MB). Free memory was 42.2MB in the beginning and 276.4MB in the end (delta: -234.2MB). Peak memory consumption was 215.8MB. Max. memory is 16.1GB. * Witness Printer took 85.22ms. Allocated memory is still 536.9MB. Free memory was 276.4MB in the beginning and 272.0MB in the end (delta: 4.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode * 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, 30 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.4s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 524 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 387 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 251 IncrementalHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 137 mSDtfsCounter, 251 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 219 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=63occurred in iteration=3, InterpolantAutomatonStates: 24, 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, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 10.4s InterpolantComputationTime, 217 NumberOfCodeBlocks, 217 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 213 ConstructedInterpolants, 0 QuantifiedInterpolants, 773 SizeOfPredicates, 30 NumberOfNonLiveVariables, 393 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 460/460 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 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (((var_1_1 == 4) && (4 == last_1_var_1_1)) || ((var_1_5 == var_1_10) && (var_1_8 == var_1_9))) RESULT: Ultimate proved your program to be correct! [2024-12-02 14:02:52,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_239e86df-bce5-4baf-bc57-2a5c29b723ce/bin/uautomizer-verify-84ZbGMXZE1/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