./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-79.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC --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 46aaa33ce2cd486d11a2ef4403e2437c8281351e94dc09a4bc73fdbba77b7fda --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:52:16,640 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:52:16,740 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-23 22:52:16,747 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:52:16,747 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:52:16,779 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:52:16,780 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:52:16,780 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:52:16,781 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:52:16,781 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:52:16,781 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:52:16,781 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:52:16,782 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:52:16,782 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:52:16,782 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:52:16,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:52:16,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:52:16,783 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:52:16,783 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 22:52:16,783 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:52:16,783 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:52:16,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:52:16,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:52:16,784 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:52:16,784 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:52:16,784 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:52:16,784 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:52:16,784 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:52:16,784 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:52:16,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:52:16,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:52:16,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:52:16,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:52:16,786 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:52:16,786 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:52:16,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:52:16,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:52:16,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:52:16,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:52:16,787 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:52:16,787 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:52:16,787 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:52:16,787 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 22:52:16,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 22:52:16,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:52:16,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:52:16,788 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:52:16,788 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:52:16,788 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_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC 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 -> 46aaa33ce2cd486d11a2ef4403e2437c8281351e94dc09a4bc73fdbba77b7fda [2024-11-23 22:52:17,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:52:17,181 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:52:17,188 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:52:17,192 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:52:17,192 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:52:17,196 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-79.i [2024-11-23 22:52:20,751 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/data/4a579eb98/f973e680d16a4cc49d6c6e5080a5df99/FLAGda36784fc [2024-11-23 22:52:21,093 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:52:21,094 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-79.i [2024-11-23 22:52:21,105 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/data/4a579eb98/f973e680d16a4cc49d6c6e5080a5df99/FLAGda36784fc [2024-11-23 22:52:21,132 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/data/4a579eb98/f973e680d16a4cc49d6c6e5080a5df99 [2024-11-23 22:52:21,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:52:21,137 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:52:21,141 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:52:21,142 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:52:21,147 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:52:21,149 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,150 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6260741b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21, skipping insertion in model container [2024-11-23 22:52:21,152 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,174 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:52:21,383 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_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-79.i[915,928] [2024-11-23 22:52:21,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:52:21,459 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:52:21,472 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_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-79.i[915,928] [2024-11-23 22:52:21,502 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:52:21,529 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:52:21,534 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21 WrapperNode [2024-11-23 22:52:21,535 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:52:21,536 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:52:21,536 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:52:21,536 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:52:21,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,626 INFO L138 Inliner]: procedures = 26, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 75 [2024-11-23 22:52:21,626 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:52:21,630 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:52:21,631 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:52:21,631 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:52:21,646 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,647 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,651 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,669 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 22:52:21,673 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,673 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,681 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,686 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,693 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,696 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,697 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,702 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:52:21,703 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:52:21,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:52:21,704 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:52:21,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (1/1) ... [2024-11-23 22:52:21,716 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:52:21,734 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:52:21,753 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:52:21,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:52:21,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:52:21,787 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:52:21,788 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:52:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 22:52:21,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:52:21,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:52:21,880 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:52:21,882 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:52:22,156 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-23 22:52:22,157 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:52:22,170 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:52:22,171 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:52:22,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:52:22 BoogieIcfgContainer [2024-11-23 22:52:22,171 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:52:22,175 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:52:22,175 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:52:22,181 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:52:22,182 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:52:21" (1/3) ... [2024-11-23 22:52:22,183 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2467d01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:52:22, skipping insertion in model container [2024-11-23 22:52:22,184 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:21" (2/3) ... [2024-11-23 22:52:22,184 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2467d01b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:52:22, skipping insertion in model container [2024-11-23 22:52:22,186 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:52:22" (3/3) ... [2024-11-23 22:52:22,188 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-79.i [2024-11-23 22:52:22,209 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:52:22,212 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-79.i that has 2 procedures, 38 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:52:22,298 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:52:22,313 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;@3263b858, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:52:22,314 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:52:22,318 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-23 22:52:22,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 22:52:22,328 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:22,329 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:22,330 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:22,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:22,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1896983747, now seen corresponding path program 1 times [2024-11-23 22:52:22,346 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:52:22,346 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347637752] [2024-11-23 22:52:22,347 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:22,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:52:22,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:22,606 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-23 22:52:22,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 22:52:22,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347637752] [2024-11-23 22:52:22,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347637752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 22:52:22,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1348805121] [2024-11-23 22:52:22,608 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:22,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 22:52:22,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:52:22,610 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-23 22:52:22,621 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 22:52:22,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:22,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:52:22,789 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:52:22,820 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2024-11-23 22:52:22,820 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:52:22,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1348805121] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:52:22,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:52:22,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-23 22:52:22,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504720774] [2024-11-23 22:52:22,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:52:22,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:52:22,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 22:52:22,855 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:52:22,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:52:22,859 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-23 22:52:22,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:52:22,883 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions. [2024-11-23 22:52:22,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:52:22,885 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, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) Word has length 66 [2024-11-23 22:52:22,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:52:22,892 INFO L225 Difference]: With dead ends: 69 [2024-11-23 22:52:22,892 INFO L226 Difference]: Without dead ends: 34 [2024-11-23 22:52:22,895 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:52:22,900 INFO L435 NwaCegarLoop]: 46 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, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:52:22,900 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:52:22,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-23 22:52:22,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-23 22:52:22,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-23 22:52:22,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2024-11-23 22:52:22,949 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 66 [2024-11-23 22:52:22,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:52:22,950 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2024-11-23 22:52:22,950 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, (10), 2 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-23 22:52:22,950 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2024-11-23 22:52:22,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 22:52:22,954 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:22,955 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:22,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-23 22:52:23,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-23 22:52:23,160 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:23,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:23,161 INFO L85 PathProgramCache]: Analyzing trace with hash 1400731073, now seen corresponding path program 1 times [2024-11-23 22:52:23,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 22:52:23,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229891195] [2024-11-23 22:52:23,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:23,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 22:52:23,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:52:23,336 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-23 22:52:23,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-23 22:52:23,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-23 22:52:23,432 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-23 22:52:23,434 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 22:52:23,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 22:52:23,444 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-23 22:52:23,513 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:52:23,517 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:52:23 BoogieIcfgContainer [2024-11-23 22:52:23,517 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:52:23,518 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:52:23,519 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:52:23,519 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:52:23,520 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:52:22" (3/4) ... [2024-11-23 22:52:23,522 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-23 22:52:23,523 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:52:23,524 INFO L158 Benchmark]: Toolchain (without parser) took 2387.71ms. Allocated memory is still 142.6MB. Free memory was 117.3MB in the beginning and 47.7MB in the end (delta: 69.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-23 22:52:23,524 INFO L158 Benchmark]: CDTParser took 0.58ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:52:23,525 INFO L158 Benchmark]: CACSL2BoogieTranslator took 394.45ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 105.1MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:52:23,525 INFO L158 Benchmark]: Boogie Procedure Inliner took 93.83ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:52:23,526 INFO L158 Benchmark]: Boogie Preprocessor took 72.26ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:52:23,526 INFO L158 Benchmark]: RCFGBuilder took 468.03ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 90.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:52:23,527 INFO L158 Benchmark]: TraceAbstraction took 1342.56ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 47.9MB in the end (delta: 42.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-23 22:52:23,527 INFO L158 Benchmark]: Witness Printer took 4.82ms. Allocated memory is still 142.6MB. Free memory was 47.9MB in the beginning and 47.7MB in the end (delta: 232.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:52:23,530 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58ms. Allocated memory is still 117.4MB. Free memory is still 72.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 394.45ms. Allocated memory is still 142.6MB. Free memory was 117.0MB in the beginning and 105.1MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 93.83ms. Allocated memory is still 142.6MB. Free memory was 105.1MB in the beginning and 103.6MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.26ms. Allocated memory is still 142.6MB. Free memory was 103.6MB in the beginning and 102.2MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 468.03ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 90.7MB in the end (delta: 11.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1342.56ms. Allocated memory is still 142.6MB. Free memory was 90.0MB in the beginning and 47.9MB in the end (delta: 42.2MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 4.82ms. Allocated memory is still 142.6MB. Free memory was 47.9MB in the beginning and 47.7MB in the end (delta: 232.6kB). 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, overapproximation of someBinaryDOUBLEComparisonOperation at line 60, overapproximation of someBinaryDOUBLEComparisonOperation at line 65. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] double var_1_1 = 3.375; [L23] unsigned char var_1_2 = 0; [L24] unsigned long int var_1_3 = 4257803242; [L25] unsigned long int var_1_4 = 16; [L26] unsigned long int var_1_5 = 256; [L27] double var_1_6 = 7.375; [L28] double var_1_7 = 9.9; VAL [isInitial=0, var_1_1=27/8, var_1_2=0, var_1_3=4257803242, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L69] isInitial = 1 [L70] FCALL initially() [L72] FCALL updateLastVariables() [L73] CALL updateVariables() [L45] var_1_2 = __VERIFIER_nondet_uchar() [L46] CALL assume_abort_if_not(var_1_2 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_3=4257803242, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_3=4257803242, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L46] RET assume_abort_if_not(var_1_2 >= 0) VAL [isInitial=1, var_1_1=27/8, var_1_3=4257803242, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L47] CALL assume_abort_if_not(var_1_2 <= 1) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=4257803242, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=4257803242, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L47] RET assume_abort_if_not(var_1_2 <= 1) VAL [isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=4257803242, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L48] var_1_3 = __VERIFIER_nondet_ulong() [L49] CALL assume_abort_if_not(var_1_3 >= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L49] RET assume_abort_if_not(var_1_3 >= 2147483647) VAL [isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L50] CALL assume_abort_if_not(var_1_3 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L50] RET assume_abort_if_not(var_1_3 <= 4294967295) VAL [isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=16, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L51] var_1_4 = __VERIFIER_nondet_ulong() [L52] CALL assume_abort_if_not(var_1_4 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L52] RET assume_abort_if_not(var_1_4 >= 0) VAL [isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L53] CALL assume_abort_if_not(var_1_4 <= 2147483647) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L53] RET assume_abort_if_not(var_1_4 <= 2147483647) VAL [isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_5=256, var_1_6=59/8, var_1_7=99/10] [L54] var_1_5 = __VERIFIER_nondet_ulong() [L55] CALL assume_abort_if_not(var_1_5 >= 0) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_6=59/8, var_1_7=99/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_6=59/8, var_1_7=99/10] [L55] RET assume_abort_if_not(var_1_5 >= 0) VAL [isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_6=59/8, var_1_7=99/10] [L56] CALL assume_abort_if_not(var_1_5 <= 4294967295) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_6=59/8, var_1_7=99/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_6=59/8, var_1_7=99/10] [L56] RET assume_abort_if_not(var_1_5 <= 4294967295) VAL [isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_6=59/8, var_1_7=99/10] [L57] var_1_6 = __VERIFIER_nondet_double() [L58] CALL assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_7=99/10] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_7=99/10] [L58] RET assume_abort_if_not((var_1_6 >= -461168.6018427382800e+13F && var_1_6 <= -1.0e-20F) || (var_1_6 <= 4611686.018427382800e+12F && var_1_6 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_7=99/10] [L59] var_1_7 = __VERIFIER_nondet_double() [L60] CALL assume_abort_if_not((var_1_7 >= -461168.6018427382800e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649] [L60] RET assume_abort_if_not((var_1_7 >= -461168.6018427382800e+13F && var_1_7 <= -1.0e-20F) || (var_1_7 <= 4611686.018427382800e+12F && var_1_7 >= 1.0e-20F )) VAL [isInitial=1, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649] [L73] RET updateVariables() [L74] CALL step() [L32] unsigned long int stepLocal_1 = var_1_5; [L33] unsigned long int stepLocal_0 = ((((var_1_3 - var_1_4)) < (var_1_5)) ? ((var_1_3 - var_1_4)) : (var_1_5)); VAL [isInitial=1, stepLocal_0=-4294967245, stepLocal_1=-4294967245, var_1_1=27/8, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_5=-4294967245] [L34] COND FALSE !(stepLocal_0 <= 50u) [L41] var_1_1 = var_1_7 VAL [isInitial=1, stepLocal_1=-4294967245, var_1_1=4257803247, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_5=-4294967245, var_1_7=4257803247] [L74] RET step() [L75] CALL, EXPR property() [L65-L66] return ((((((var_1_3 - var_1_4)) < (var_1_5)) ? ((var_1_3 - var_1_4)) : (var_1_5))) <= 50u) ? (var_1_2 ? ((var_1_3 > var_1_5) ? (var_1_1 == ((double) (var_1_6 + var_1_7))) : 1) : 1) : (var_1_1 == ((double) var_1_7)) ; VAL [\result=0, isInitial=1, var_1_1=4257803247, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_5=-4294967245, var_1_7=4257803247] [L75] RET, EXPR property() [L75] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, var_1_1=4257803247, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_5=-4294967245, var_1_7=4257803247] [L19] reach_error() VAL [isInitial=1, var_1_1=4257803247, var_1_2=1, var_1_3=-6442450894, var_1_4=-2147483649, var_1_5=-4294967245, var_1_7=4257803247] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 46 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 130 ConstructedInterpolants, 0 QuantifiedInterpolants, 130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 157 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 342/360 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-23 22:52:23,556 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/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_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-79.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC --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 46aaa33ce2cd486d11a2ef4403e2437c8281351e94dc09a4bc73fdbba77b7fda --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-23 22:52:26,771 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 22:52:26,932 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-23 22:52:26,942 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 22:52:26,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 22:52:26,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 22:52:26,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 22:52:26,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 22:52:26,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 22:52:26,977 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 22:52:26,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 22:52:26,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 22:52:26,978 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 22:52:26,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 22:52:26,978 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 22:52:26,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 22:52:26,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 22:52:26,979 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 22:52:26,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 22:52:26,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 22:52:26,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 22:52:26,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 22:52:26,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 22:52:26,979 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-23 22:52:26,979 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-23 22:52:26,980 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-23 22:52:26,980 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 22:52:26,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 22:52:26,980 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-23 22:52:26,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 22:52:26,980 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-23 22:52:26,980 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:52:26,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:52:26,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:52:26,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:52:26,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 22:52:26,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 22:52:26,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 22:52:26,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 22:52:26,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:52:26,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 22:52:26,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 22:52:26,982 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-23 22:52:26,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 22:52:26,982 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-23 22:52:26,982 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-23 22:52:26,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 22:52:26,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 22:52:26,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 22:52:26,982 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 22:52:26,983 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_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC 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 -> 46aaa33ce2cd486d11a2ef4403e2437c8281351e94dc09a4bc73fdbba77b7fda [2024-11-23 22:52:27,406 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 22:52:27,420 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 22:52:27,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 22:52:27,425 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 22:52:27,426 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 22:52:27,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-79.i [2024-11-23 22:52:30,815 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/data/5a9d01061/f48d05f951194046b1cedb371a2d7791/FLAG170149c17 [2024-11-23 22:52:31,099 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 22:52:31,100 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-79.i [2024-11-23 22:52:31,110 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/data/5a9d01061/f48d05f951194046b1cedb371a2d7791/FLAG170149c17 [2024-11-23 22:52:31,130 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/data/5a9d01061/f48d05f951194046b1cedb371a2d7791 [2024-11-23 22:52:31,133 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 22:52:31,135 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 22:52:31,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 22:52:31,137 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 22:52:31,142 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 22:52:31,143 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,145 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25377006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31, skipping insertion in model container [2024-11-23 22:52:31,145 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,169 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 22:52:31,399 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_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-79.i[915,928] [2024-11-23 22:52:31,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:52:31,487 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 22:52:31,503 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_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount10_file-79.i[915,928] [2024-11-23 22:52:31,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 22:52:31,563 INFO L204 MainTranslator]: Completed translation [2024-11-23 22:52:31,564 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31 WrapperNode [2024-11-23 22:52:31,564 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 22:52:31,565 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 22:52:31,565 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 22:52:31,565 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 22:52:31,577 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,596 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,627 INFO L138 Inliner]: procedures = 27, calls = 23, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 75 [2024-11-23 22:52:31,627 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 22:52:31,629 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 22:52:31,630 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 22:52:31,630 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 22:52:31,641 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,645 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,659 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-23 22:52:31,659 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,660 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,667 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,672 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,676 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,678 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,683 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,685 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 22:52:31,689 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 22:52:31,690 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 22:52:31,690 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 22:52:31,691 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (1/1) ... [2024-11-23 22:52:31,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 22:52:31,718 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-23 22:52:31,734 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-23 22:52:31,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-23 22:52:31,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 22:52:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-23 22:52:31,786 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-23 22:52:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-23 22:52:31,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 22:52:31,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 22:52:31,867 INFO L234 CfgBuilder]: Building ICFG [2024-11-23 22:52:31,869 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 22:52:32,639 INFO L? ?]: Removed 12 outVars from TransFormulas that were not future-live. [2024-11-23 22:52:32,639 INFO L283 CfgBuilder]: Performing block encoding [2024-11-23 22:52:32,651 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 22:52:32,652 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 22:52:32,652 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:52:32 BoogieIcfgContainer [2024-11-23 22:52:32,652 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 22:52:32,655 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 22:52:32,655 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 22:52:32,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 22:52:32,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:52:31" (1/3) ... [2024-11-23 22:52:32,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ad680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:52:32, skipping insertion in model container [2024-11-23 22:52:32,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:52:31" (2/3) ... [2024-11-23 22:52:32,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45ad680 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:52:32, skipping insertion in model container [2024-11-23 22:52:32,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:52:32" (3/3) ... [2024-11-23 22:52:32,664 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount10_file-79.i [2024-11-23 22:52:32,683 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 22:52:32,685 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_operatoramount_amount10_file-79.i that has 2 procedures, 38 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-23 22:52:32,751 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 22:52:32,770 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;@373abafe, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 22:52:32,770 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-23 22:52:32,774 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-23 22:52:32,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 22:52:32,784 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:32,785 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:32,786 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:32,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:32,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1896983747, now seen corresponding path program 1 times [2024-11-23 22:52:32,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:52:32,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498884204] [2024-11-23 22:52:32,804 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:32,805 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:52:32,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:52:32,809 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:52:32,811 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-23 22:52:33,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:33,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-23 22:52:33,102 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:52:33,137 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-23 22:52:33,137 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:52:33,138 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:52:33,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498884204] [2024-11-23 22:52:33,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498884204] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:52:33,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:52:33,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-23 22:52:33,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939744530] [2024-11-23 22:52:33,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:52:33,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-23 22:52:33,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:52:33,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-23 22:52:33,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:52:33,170 INFO L87 Difference]: Start difference. First operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 26 states have internal predecessors, (33), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-23 22:52:33,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:52:33,198 INFO L93 Difference]: Finished difference Result 69 states and 110 transitions. [2024-11-23 22:52:33,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-23 22:52:33,200 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 66 [2024-11-23 22:52:33,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:52:33,207 INFO L225 Difference]: With dead ends: 69 [2024-11-23 22:52:33,208 INFO L226 Difference]: Without dead ends: 34 [2024-11-23 22:52:33,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-23 22:52:33,214 INFO L435 NwaCegarLoop]: 46 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, 46 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-23 22:52:33,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-23 22:52:33,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-23 22:52:33,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-23 22:52:33,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-23 22:52:33,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 46 transitions. [2024-11-23 22:52:33,254 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 46 transitions. Word has length 66 [2024-11-23 22:52:33,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:52:33,254 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 46 transitions. [2024-11-23 22:52:33,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-23 22:52:33,255 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 46 transitions. [2024-11-23 22:52:33,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-23 22:52:33,257 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:33,258 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:33,267 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:52:33,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:52:33,459 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:33,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:33,460 INFO L85 PathProgramCache]: Analyzing trace with hash 1400731073, now seen corresponding path program 1 times [2024-11-23 22:52:33,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:52:33,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1744791467] [2024-11-23 22:52:33,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:33,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:52:33,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:52:33,464 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:52:33,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-23 22:52:33,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:33,701 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-23 22:52:33,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:52:40,919 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2024-11-23 22:52:40,919 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:52:40,920 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:52:40,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1744791467] [2024-11-23 22:52:40,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1744791467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:52:40,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:52:40,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-23 22:52:40,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269505084] [2024-11-23 22:52:40,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:52:40,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-23 22:52:40,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:52:40,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-23 22:52:40,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-23 22:52:40,926 INFO L87 Difference]: Start difference. First operand 34 states and 46 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-23 22:52:44,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:52:44,175 INFO L93 Difference]: Finished difference Result 57 states and 69 transitions. [2024-11-23 22:52:44,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-23 22:52:44,177 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) Word has length 66 [2024-11-23 22:52:44,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:52:44,180 INFO L225 Difference]: With dead ends: 57 [2024-11-23 22:52:44,180 INFO L226 Difference]: Without dead ends: 55 [2024-11-23 22:52:44,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2024-11-23 22:52:44,181 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 58 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-23 22:52:44,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 165 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-23 22:52:44,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-23 22:52:44,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 50. [2024-11-23 22:52:44,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 34 states have (on average 1.1176470588235294) internal successors, (38), 35 states have internal predecessors, (38), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:52:44,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 62 transitions. [2024-11-23 22:52:44,209 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 62 transitions. Word has length 66 [2024-11-23 22:52:44,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:52:44,211 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 62 transitions. [2024-11-23 22:52:44,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 8 states have internal predecessors, (22), 1 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-23 22:52:44,211 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 62 transitions. [2024-11-23 22:52:44,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-23 22:52:44,216 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:44,217 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:44,225 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-23 22:52:44,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:52:44,417 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:44,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:44,419 INFO L85 PathProgramCache]: Analyzing trace with hash 67502115, now seen corresponding path program 1 times [2024-11-23 22:52:44,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:52:44,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [951516631] [2024-11-23 22:52:44,422 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:44,422 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:52:44,422 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:52:44,426 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:52:44,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:52:44,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:44,688 INFO L256 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-23 22:52:44,696 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:52:49,142 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-23 22:52:49,142 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:52:49,142 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:52:49,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [951516631] [2024-11-23 22:52:49,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [951516631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:52:49,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:52:49,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-23 22:52:49,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690326330] [2024-11-23 22:52:49,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:52:49,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-23 22:52:49,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:52:49,148 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-23 22:52:49,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-23 22:52:49,149 INFO L87 Difference]: Start difference. First operand 50 states and 62 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-23 22:52:50,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:52:50,611 INFO L93 Difference]: Finished difference Result 67 states and 80 transitions. [2024-11-23 22:52:50,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-23 22:52:50,612 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 67 [2024-11-23 22:52:50,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:52:50,615 INFO L225 Difference]: With dead ends: 67 [2024-11-23 22:52:50,616 INFO L226 Difference]: Without dead ends: 65 [2024-11-23 22:52:50,616 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-23 22:52:50,617 INFO L435 NwaCegarLoop]: 53 mSDtfsCounter, 24 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-23 22:52:50,618 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 246 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-23 22:52:50,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-23 22:52:50,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 49. [2024-11-23 22:52:50,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 33 states have (on average 1.121212121212121) internal successors, (37), 34 states have internal predecessors, (37), 12 states have call successors, (12), 3 states have call predecessors, (12), 3 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:52:50,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 61 transitions. [2024-11-23 22:52:50,633 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 61 transitions. Word has length 67 [2024-11-23 22:52:50,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:52:50,634 INFO L471 AbstractCegarLoop]: Abstraction has 49 states and 61 transitions. [2024-11-23 22:52:50,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-23 22:52:50,634 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 61 transitions. [2024-11-23 22:52:50,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-23 22:52:50,637 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:52:50,637 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:52:50,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/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)] Forceful destruction successful, exit code 0 [2024-11-23 22:52:50,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:52:50,839 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:52:50,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:52:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1854234678, now seen corresponding path program 1 times [2024-11-23 22:52:50,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:52:50,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2142788630] [2024-11-23 22:52:50,840 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:52:50,840 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:52:50,840 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:52:50,844 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:52:50,845 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-23 22:52:51,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:52:51,072 INFO L256 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-23 22:52:51,076 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:53:20,141 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-23 22:53:20,141 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 22:53:20,142 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:53:20,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2142788630] [2024-11-23 22:53:20,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2142788630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 22:53:20,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 22:53:20,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-23 22:53:20,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697114524] [2024-11-23 22:53:20,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:20,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-23 22:53:20,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:53:20,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-23 22:53:20,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-23 22:53:20,145 INFO L87 Difference]: Start difference. First operand 49 states and 61 transitions. Second operand has 15 states, 15 states have (on average 1.8) internal successors, (27), 13 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-23 22:53:41,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:41,706 INFO L93 Difference]: Finished difference Result 83 states and 95 transitions. [2024-11-23 22:53:41,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-23 22:53:41,708 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 13 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 68 [2024-11-23 22:53:41,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:41,709 INFO L225 Difference]: With dead ends: 83 [2024-11-23 22:53:41,709 INFO L226 Difference]: Without dead ends: 81 [2024-11-23 22:53:41,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 18.0s TimeCoverageRelationStatistics Valid=129, Invalid=377, Unknown=0, NotChecked=0, Total=506 [2024-11-23 22:53:41,711 INFO L435 NwaCegarLoop]: 41 mSDtfsCounter, 58 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.6s IncrementalHoareTripleChecker+Time [2024-11-23 22:53:41,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 228 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 10.6s Time] [2024-11-23 22:53:41,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-23 22:53:41,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 53. [2024-11-23 22:53:41,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 36 states have (on average 1.1111111111111112) internal successors, (40), 37 states have internal predecessors, (40), 12 states have call successors, (12), 4 states have call predecessors, (12), 4 states have return successors, (12), 11 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-23 22:53:41,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 64 transitions. [2024-11-23 22:53:41,728 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 64 transitions. Word has length 68 [2024-11-23 22:53:41,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:41,728 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 64 transitions. [2024-11-23 22:53:41,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 1.8) internal successors, (27), 13 states have internal predecessors, (27), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-23 22:53:41,729 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 64 transitions. [2024-11-23 22:53:41,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-23 22:53:41,730 INFO L210 NwaCegarLoop]: Found error trace [2024-11-23 22:53:41,730 INFO L218 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 22:53:41,735 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/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 [2024-11-23 22:53:41,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:53:41,931 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-23 22:53:41,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 22:53:41,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1856081720, now seen corresponding path program 1 times [2024-11-23 22:53:41,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-23 22:53:41,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [91138590] [2024-11-23 22:53:41,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 22:53:41,932 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:53:41,932 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat [2024-11-23 22:53:41,935 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-23 22:53:41,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/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 (6)] Waiting until timeout for monitored process [2024-11-23 22:53:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 22:53:42,149 INFO L256 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-23 22:53:42,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 22:53:43,284 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 69 proven. 21 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-23 22:53:43,285 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 22:53:47,285 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-23 22:53:47,285 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-23 22:53:47,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [91138590] [2024-11-23 22:53:47,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [91138590] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-23 22:53:47,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 22:53:47,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2024-11-23 22:53:47,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2131501859] [2024-11-23 22:53:47,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 22:53:47,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 22:53:47,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-23 22:53:47,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 22:53:47,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=220, Unknown=0, NotChecked=0, Total=272 [2024-11-23 22:53:47,287 INFO L87 Difference]: Start difference. First operand 53 states and 64 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-23 22:53:49,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-23 22:53:49,065 INFO L93 Difference]: Finished difference Result 57 states and 68 transitions. [2024-11-23 22:53:49,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 22:53:49,067 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) Word has length 68 [2024-11-23 22:53:49,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-23 22:53:49,068 INFO L225 Difference]: With dead ends: 57 [2024-11-23 22:53:49,068 INFO L226 Difference]: Without dead ends: 0 [2024-11-23 22:53:49,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=69, Invalid=311, Unknown=0, NotChecked=0, Total=380 [2024-11-23 22:53:49,069 INFO L435 NwaCegarLoop]: 43 mSDtfsCounter, 10 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-23 22:53:49,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 198 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-23 22:53:49,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-23 22:53:49,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-23 22:53:49,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-23 22:53:49,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-23 22:53:49,071 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2024-11-23 22:53:49,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-23 22:53:49,071 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-23 22:53:49,071 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 1 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 1 states have call predecessors, (10), 1 states have call successors, (10) [2024-11-23 22:53:49,072 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-23 22:53:49,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-23 22:53:49,075 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-23 22:53:49,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/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 (6)] Forceful destruction successful, exit code 0 [2024-11-23 22:53:49,276 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-23 22:53:49,278 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-23 22:53:49,280 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-23 22:53:57,022 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 22:53:57,036 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-23 22:53:57,037 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-23 22:53:57,037 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-23 22:53:57,038 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-23 22:53:57,038 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-23 22:53:57,038 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven [2024-11-23 22:53:57,038 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-23 22:53:57,039 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-23 22:53:57,039 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-23 22:53:57,039 WARN L970 BoogieBacktranslator]: Unfinished Backtranslation: Unknown variable: currentRoundingMode [2024-11-23 22:53:57,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:53:57 BoogieIcfgContainer [2024-11-23 22:53:57,040 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 22:53:57,041 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 22:53:57,041 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 22:53:57,041 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 22:53:57,042 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:52:32" (3/4) ... [2024-11-23 22:53:57,045 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-23 22:53:57,052 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-11-23 22:53:57,057 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-23 22:53:57,058 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-23 22:53:57,058 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-23 22:53:57,058 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 22:53:57,158 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/witness.graphml [2024-11-23 22:53:57,159 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/witness.yml [2024-11-23 22:53:57,159 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 22:53:57,160 INFO L158 Benchmark]: Toolchain (without parser) took 86025.29ms. Allocated memory was 83.9MB in the beginning and 218.1MB in the end (delta: 134.2MB). Free memory was 60.6MB in the beginning and 176.6MB in the end (delta: -116.1MB). Peak memory consumption was 13.3MB. Max. memory is 16.1GB. [2024-11-23 22:53:57,160 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:53:57,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 427.89ms. Allocated memory is still 83.9MB. Free memory was 60.3MB in the beginning and 47.9MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:53:57,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.37ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 46.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:53:57,162 INFO L158 Benchmark]: Boogie Preprocessor took 56.27ms. Allocated memory is still 83.9MB. Free memory was 46.4MB in the beginning and 44.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:53:57,162 INFO L158 Benchmark]: RCFGBuilder took 962.80ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 32.4MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-23 22:53:57,162 INFO L158 Benchmark]: TraceAbstraction took 84384.97ms. Allocated memory was 83.9MB in the beginning and 218.1MB in the end (delta: 134.2MB). Free memory was 31.8MB in the beginning and 180.3MB in the end (delta: -148.5MB). Peak memory consumption was 97.5MB. Max. memory is 16.1GB. [2024-11-23 22:53:57,163 INFO L158 Benchmark]: Witness Printer took 118.32ms. Allocated memory is still 218.1MB. Free memory was 180.3MB in the beginning and 176.6MB in the end (delta: 3.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 22:53:57,165 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 83.9MB. Free memory is still 64.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 427.89ms. Allocated memory is still 83.9MB. Free memory was 60.3MB in the beginning and 47.9MB in the end (delta: 12.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.37ms. Allocated memory is still 83.9MB. Free memory was 47.9MB in the beginning and 46.4MB in the end (delta: 1.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.27ms. Allocated memory is still 83.9MB. Free memory was 46.4MB in the beginning and 44.7MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 962.80ms. Allocated memory is still 83.9MB. Free memory was 44.7MB in the beginning and 32.4MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 84384.97ms. Allocated memory was 83.9MB in the beginning and 218.1MB in the end (delta: 134.2MB). Free memory was 31.8MB in the beginning and 180.3MB in the end (delta: -148.5MB). Peak memory consumption was 97.5MB. Max. memory is 16.1GB. * Witness Printer took 118.32ms. Allocated memory is still 218.1MB. Free memory was 180.3MB in the beginning and 176.6MB in the end (delta: 3.7MB). 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 - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Unknown variable: currentRoundingMode - 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, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 76.5s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 28.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 171 SdHoareTripleChecker+Valid, 15.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 150 mSDsluCounter, 883 SdHoareTripleChecker+Invalid, 14.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 666 mSDsCounter, 19 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 704 IncrementalHoareTripleChecker+Invalid, 723 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 19 mSolverCounterUnsat, 217 mSDtfsCounter, 704 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 418 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 21.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=53occurred in iteration=4, InterpolantAutomatonStates: 54, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 49 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 46.0s InterpolantComputationTime, 335 NumberOfCodeBlocks, 335 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 397 ConstructedInterpolants, 0 QuantifiedInterpolants, 1829 SizeOfPredicates, 39 NumberOfNonLiveVariables, 553 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 1059/1080 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-23 22:53:57,244 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2eb5b9a4-2b7d-4f5a-a91f-fcb227b1b368/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE