./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf5dbfe5ddcce299137d12379a3532fad5a0b1d2b0a83e3f07b3ec288904adfe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:41:46,531 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:41:46,625 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 04:41:46,632 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:41:46,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:41:46,660 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:41:46,661 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:41:46,661 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:41:46,661 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:41:46,661 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:41:46,662 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:41:46,662 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:41:46,662 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:41:46,662 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:41:46,663 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:41:46,663 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:41:46,663 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:41:46,663 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:41:46,663 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:41:46,664 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:41:46,664 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:41:46,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:41:46,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:41:46,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:41:46,664 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:41:46,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:41:46,665 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:41:46,665 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:41:46,665 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:41:46,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:41:46,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:41:46,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:41:46,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:41:46,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:41:46,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:41:46,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:41:46,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:41:46,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:41:46,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:41:46,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:41:46,667 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:41:46,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:41:46,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 04:41:46,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 04:41:46,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:41:46,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:41:46,668 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:41:46,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:41:46,668 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_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf5dbfe5ddcce299137d12379a3532fad5a0b1d2b0a83e3f07b3ec288904adfe [2024-11-28 04:41:47,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:41:47,053 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:41:47,057 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:41:47,059 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:41:47,059 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:41:47,062 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-28 04:41:50,621 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/data/659b200d4/54f4e629260d405fbca80277ffbf4a99/FLAG346505416 [2024-11-28 04:41:50,984 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:41:50,984 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-28 04:41:50,994 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/data/659b200d4/54f4e629260d405fbca80277ffbf4a99/FLAG346505416 [2024-11-28 04:41:51,010 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/data/659b200d4/54f4e629260d405fbca80277ffbf4a99 [2024-11-28 04:41:51,013 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:41:51,014 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:41:51,015 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:41:51,015 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:41:51,021 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:41:51,021 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,022 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@29ad7792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51, skipping insertion in model container [2024-11-28 04:41:51,023 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,047 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:41:51,230 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_50819552-3cba-499b-972e-1318aa364e0b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i[915,928] [2024-11-28 04:41:51,272 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:41:51,283 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:41:51,295 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_50819552-3cba-499b-972e-1318aa364e0b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i[915,928] [2024-11-28 04:41:51,315 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:41:51,331 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:41:51,331 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51 WrapperNode [2024-11-28 04:41:51,332 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:41:51,333 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:41:51,333 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:41:51,333 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:41:51,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,348 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,374 INFO L138 Inliner]: procedures = 26, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 130 [2024-11-28 04:41:51,374 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:41:51,375 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:41:51,375 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:41:51,375 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:41:51,389 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,389 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,392 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,405 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]. [2024-11-28 04:41:51,405 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,406 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,411 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,412 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,416 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,418 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,419 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,422 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:41:51,427 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:41:51,427 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:41:51,427 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:41:51,428 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (1/1) ... [2024-11-28 04:41:51,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:41:51,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:51,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:41:51,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:41:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:41:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:41:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:41:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:41:51,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:41:51,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:41:51,582 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:41:51,584 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:41:51,883 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-28 04:41:51,883 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:41:51,893 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:41:51,893 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:41:51,894 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:51 BoogieIcfgContainer [2024-11-28 04:41:51,894 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:41:51,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:41:51,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:41:51,902 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:41:51,902 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:41:51" (1/3) ... [2024-11-28 04:41:51,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43881a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:41:51, skipping insertion in model container [2024-11-28 04:41:51,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:41:51" (2/3) ... [2024-11-28 04:41:51,903 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43881a45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:41:51, skipping insertion in model container [2024-11-28 04:41:51,903 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:51" (3/3) ... [2024-11-28 04:41:51,904 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-28 04:41:51,920 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:41:51,922 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-18.i that has 2 procedures, 61 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:41:51,978 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:41:51,991 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;@6b784a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:41:51,991 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:41:51,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 61 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 43 states have internal predecessors, (59), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:41:52,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 04:41:52,007 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:52,008 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:52,008 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:41:52,014 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:52,015 INFO L85 PathProgramCache]: Analyzing trace with hash 690520621, now seen corresponding path program 1 times [2024-11-28 04:41:52,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:52,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324240846] [2024-11-28 04:41:52,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:52,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:52,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:52,374 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-28 04:41:52,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:52,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324240846] [2024-11-28 04:41:52,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324240846] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:41:52,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403184850] [2024-11-28 04:41:52,376 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:52,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:52,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:52,379 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:52,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:41:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:52,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:41:52,564 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:41:52,604 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2024-11-28 04:41:52,605 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:41:52,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403184850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:52,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:41:52,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 04:41:52,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210143010] [2024-11-28 04:41:52,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:52,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:41:52,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:52,640 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:41:52,641 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:41:52,644 INFO L87 Difference]: Start difference. First operand has 61 states, 42 states have (on average 1.4047619047619047) internal successors, (59), 43 states have internal predecessors, (59), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:41:52,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:52,680 INFO L93 Difference]: Finished difference Result 115 states and 192 transitions. [2024-11-28 04:41:52,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:41:52,683 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 106 [2024-11-28 04:41:52,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:52,691 INFO L225 Difference]: With dead ends: 115 [2024-11-28 04:41:52,691 INFO L226 Difference]: Without dead ends: 57 [2024-11-28 04:41:52,695 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:41:52,698 INFO L435 NwaCegarLoop]: 84 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, 84 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 [2024-11-28 04:41:52,699 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:41:52,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-28 04:41:52,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2024-11-28 04:41:52,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 39 states have (on average 1.3333333333333333) internal successors, (52), 39 states have internal predecessors, (52), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:41:52,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 84 transitions. [2024-11-28 04:41:52,769 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 84 transitions. Word has length 106 [2024-11-28 04:41:52,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:52,770 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 84 transitions. [2024-11-28 04:41:52,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 2 states have call successors, (16), 2 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:41:52,771 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 84 transitions. [2024-11-28 04:41:52,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-28 04:41:52,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:52,774 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:52,782 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:41:52,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:52,975 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:41:52,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:52,976 INFO L85 PathProgramCache]: Analyzing trace with hash -173301843, now seen corresponding path program 1 times [2024-11-28 04:41:52,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:52,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964363760] [2024-11-28 04:41:52,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:52,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:53,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:53,619 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:41:53,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:53,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964363760] [2024-11-28 04:41:53,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964363760] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:53,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:53,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:41:53,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324576418] [2024-11-28 04:41:53,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:53,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:41:53,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:53,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:41:53,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:41:53,622 INFO L87 Difference]: Start difference. First operand 57 states and 84 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:41:53,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:53,987 INFO L93 Difference]: Finished difference Result 166 states and 247 transitions. [2024-11-28 04:41:53,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:41:53,988 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 106 [2024-11-28 04:41:53,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:53,991 INFO L225 Difference]: With dead ends: 166 [2024-11-28 04:41:53,994 INFO L226 Difference]: Without dead ends: 112 [2024-11-28 04:41:53,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:41:53,996 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 62 mSDsluCounter, 130 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 199 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:53,997 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 199 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:41:53,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-28 04:41:54,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 103. [2024-11-28 04:41:54,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 68 states have (on average 1.2941176470588236) internal successors, (88), 68 states have internal predecessors, (88), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 04:41:54,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 152 transitions. [2024-11-28 04:41:54,047 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 152 transitions. Word has length 106 [2024-11-28 04:41:54,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:54,050 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 152 transitions. [2024-11-28 04:41:54,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:41:54,050 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 152 transitions. [2024-11-28 04:41:54,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:41:54,055 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:54,055 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:54,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 04:41:54,056 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:41:54,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:54,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1782216809, now seen corresponding path program 1 times [2024-11-28 04:41:54,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:54,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894971597] [2024-11-28 04:41:54,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:54,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:54,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:54,697 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:41:54,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:54,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894971597] [2024-11-28 04:41:54,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894971597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:54,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:54,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:41:54,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823473375] [2024-11-28 04:41:54,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:54,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:41:54,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:54,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:41:54,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:41:54,703 INFO L87 Difference]: Start difference. First operand 103 states and 152 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:41:54,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:54,853 INFO L93 Difference]: Finished difference Result 188 states and 277 transitions. [2024-11-28 04:41:54,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:41:54,854 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 110 [2024-11-28 04:41:54,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:54,857 INFO L225 Difference]: With dead ends: 188 [2024-11-28 04:41:54,857 INFO L226 Difference]: Without dead ends: 125 [2024-11-28 04:41:54,858 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:41:54,859 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 32 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 169 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:54,859 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 169 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:41:54,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-28 04:41:54,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 101. [2024-11-28 04:41:54,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 66 states have (on average 1.2575757575757576) internal successors, (83), 66 states have internal predecessors, (83), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 04:41:54,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 147 transitions. [2024-11-28 04:41:54,900 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 147 transitions. Word has length 110 [2024-11-28 04:41:54,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:54,901 INFO L471 AbstractCegarLoop]: Abstraction has 101 states and 147 transitions. [2024-11-28 04:41:54,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:41:54,902 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 147 transitions. [2024-11-28 04:41:54,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-28 04:41:54,907 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:54,907 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:54,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 04:41:54,907 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:41:54,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:54,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1392556565, now seen corresponding path program 1 times [2024-11-28 04:41:54,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:54,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753110255] [2024-11-28 04:41:54,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:54,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:41:56,096 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:41:56,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:41:56,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753110255] [2024-11-28 04:41:56,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753110255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:41:56,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:41:56,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:41:56,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186723584] [2024-11-28 04:41:56,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:41:56,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:41:56,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:41:56,098 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:41:56,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:41:56,099 INFO L87 Difference]: Start difference. First operand 101 states and 147 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:41:56,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:41:56,504 INFO L93 Difference]: Finished difference Result 192 states and 277 transitions. [2024-11-28 04:41:56,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:41:56,505 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 111 [2024-11-28 04:41:56,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:41:56,508 INFO L225 Difference]: With dead ends: 192 [2024-11-28 04:41:56,508 INFO L226 Difference]: Without dead ends: 125 [2024-11-28 04:41:56,509 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 04:41:56,514 INFO L435 NwaCegarLoop]: 67 mSDtfsCounter, 91 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:41:56,514 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 193 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:41:56,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-11-28 04:41:56,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 117. [2024-11-28 04:41:56,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 82 states have (on average 1.2804878048780488) internal successors, (105), 82 states have internal predecessors, (105), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 04:41:56,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 169 transitions. [2024-11-28 04:41:56,568 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 169 transitions. Word has length 111 [2024-11-28 04:41:56,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:41:56,569 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 169 transitions. [2024-11-28 04:41:56,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:41:56,569 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 169 transitions. [2024-11-28 04:41:56,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 04:41:56,573 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:41:56,574 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:41:56,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 04:41:56,574 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:41:56,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:41:56,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1247135902, now seen corresponding path program 1 times [2024-11-28 04:41:56,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:41:56,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409698653] [2024-11-28 04:41:56,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:56,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:41:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 04:41:56,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108853941] [2024-11-28 04:41:56,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:41:56,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:56,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:41:56,700 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:41:56,704 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:41:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:41:56,845 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:41:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:41:56,989 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 04:41:56,989 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 04:41:56,990 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 04:41:57,005 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 04:41:57,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:41:57,197 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-28 04:41:57,313 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 04:41:57,319 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 04:41:57 BoogieIcfgContainer [2024-11-28 04:41:57,319 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 04:41:57,320 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:41:57,320 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:41:57,321 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:41:57,322 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:41:51" (3/4) ... [2024-11-28 04:41:57,325 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-11-28 04:41:57,326 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:41:57,328 INFO L158 Benchmark]: Toolchain (without parser) took 6313.36ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 106.4MB in the beginning and 270.0MB in the end (delta: -163.7MB). Peak memory consumption was 45.9MB. Max. memory is 16.1GB. [2024-11-28 04:41:57,330 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:41:57,330 INFO L158 Benchmark]: CACSL2BoogieTranslator took 316.95ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 93.5MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:41:57,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.91ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 91.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:41:57,334 INFO L158 Benchmark]: Boogie Preprocessor took 46.75ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 89.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:41:57,335 INFO L158 Benchmark]: RCFGBuilder took 467.73ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 72.2MB in the end (delta: 17.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:41:57,335 INFO L158 Benchmark]: TraceAbstraction took 5422.33ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 71.5MB in the beginning and 270.1MB in the end (delta: -198.6MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2024-11-28 04:41:57,335 INFO L158 Benchmark]: Witness Printer took 7.00ms. Allocated memory is still 352.3MB. Free memory was 270.1MB in the beginning and 270.0MB in the end (delta: 110.7kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:41:57,337 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 104.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 316.95ms. Allocated memory is still 142.6MB. Free memory was 106.0MB in the beginning and 93.5MB in the end (delta: 12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.91ms. Allocated memory is still 142.6MB. Free memory was 93.5MB in the beginning and 91.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.75ms. Allocated memory is still 142.6MB. Free memory was 91.7MB in the beginning and 89.5MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 467.73ms. Allocated memory is still 142.6MB. Free memory was 89.5MB in the beginning and 72.2MB in the end (delta: 17.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 5422.33ms. Allocated memory was 142.6MB in the beginning and 352.3MB in the end (delta: 209.7MB). Free memory was 71.5MB in the beginning and 270.1MB in the end (delta: -198.6MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * Witness Printer took 7.00ms. Allocated memory is still 352.3MB. Free memory was 270.1MB in the beginning and 270.0MB in the end (delta: 110.7kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 79, overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someBinaryFLOATComparisonOperation at line 99, overapproximation of bitwiseOr at line 99, overapproximation of bitwiseOr at line 39. Possible FailurePath: [L21] unsigned char isInitial = 0; [L22] float var_1_1 = 99.25; [L23] signed short int var_1_6 = 32; [L24] signed short int var_1_7 = 18477; [L25] signed short int var_1_8 = 5; [L26] float var_1_9 = 100.8; [L27] unsigned long int var_1_10 = 256; [L28] unsigned char var_1_11 = 0; [L29] unsigned char var_1_12 = 10; [L30] unsigned long int var_1_13 = 1879106797; [L31] unsigned long int var_1_14 = 1581421231; [L32] signed long int var_1_15 = -32; [L33] unsigned long int last_1_var_1_10 = 256; [L34] signed long int last_1_var_1_15 = -32; VAL [isInitial=0, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L103] isInitial = 1 [L104] FCALL initially() [L106] CALL updateLastVariables() [L95] last_1_var_1_10 = var_1_10 [L96] last_1_var_1_15 = var_1_15 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=32, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L106] RET updateLastVariables() [L107] CALL updateVariables() [L69] var_1_6 = __VERIFIER_nondet_short() [L70] CALL assume_abort_if_not(var_1_6 >= -1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L70] RET assume_abort_if_not(var_1_6 >= -1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L71] CALL assume_abort_if_not(var_1_6 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L71] RET assume_abort_if_not(var_1_6 <= 32767) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=18477, var_1_8=5, var_1_9=504/5] [L72] var_1_7 = __VERIFIER_nondet_short() [L73] CALL assume_abort_if_not(var_1_7 >= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L73] RET assume_abort_if_not(var_1_7 >= 16383) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L74] CALL assume_abort_if_not(var_1_7 <= 32767) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L74] RET assume_abort_if_not(var_1_7 <= 32767) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=5, var_1_9=504/5] [L75] var_1_8 = __VERIFIER_nondet_short() [L76] CALL assume_abort_if_not(var_1_8 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L76] RET assume_abort_if_not(var_1_8 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L77] CALL assume_abort_if_not(var_1_8 <= 16383) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L77] RET assume_abort_if_not(var_1_8 <= 16383) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=504/5] [L78] var_1_9 = __VERIFIER_nondet_float() [L79] CALL assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L79] RET assume_abort_if_not((var_1_9 >= -922337.2036854765600e+13F && var_1_9 <= -1.0e-20F) || (var_1_9 <= 9223372.036854765600e+12F && var_1_9 >= 1.0e-20F )) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L80] var_1_11 = __VERIFIER_nondet_uchar() [L81] CALL assume_abort_if_not(var_1_11 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L81] RET assume_abort_if_not(var_1_11 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L82] CALL assume_abort_if_not(var_1_11 <= 1) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L82] RET assume_abort_if_not(var_1_11 <= 1) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=10, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L83] var_1_12 = __VERIFIER_nondet_uchar() [L84] CALL assume_abort_if_not(var_1_12 >= 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L84] RET assume_abort_if_not(var_1_12 >= 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L85] CALL assume_abort_if_not(var_1_12 <= 255) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L85] RET assume_abort_if_not(var_1_12 <= 255) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L86] CALL assume_abort_if_not(var_1_12 != 0) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L86] RET assume_abort_if_not(var_1_12 != 0) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1879106797, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L87] var_1_13 = __VERIFIER_nondet_ulong() [L88] CALL assume_abort_if_not(var_1_13 >= 1073741823) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L88] RET assume_abort_if_not(var_1_13 >= 1073741823) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L89] CALL assume_abort_if_not(var_1_13 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L89] RET assume_abort_if_not(var_1_13 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1581421231, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L90] var_1_14 = __VERIFIER_nondet_ulong() [L91] CALL assume_abort_if_not(var_1_14 >= 1073741824) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L91] RET assume_abort_if_not(var_1_14 >= 1073741824) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L92] CALL assume_abort_if_not(var_1_14 <= 2147483647) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L20] COND FALSE !(!cond) VAL [\old(cond)=1, isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L92] RET assume_abort_if_not(var_1_14 <= 2147483647) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L107] RET updateVariables() [L108] CALL step() [L38] unsigned long int stepLocal_1 = last_1_var_1_10; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L39] EXPR last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=397/4, var_1_6=-1, var_1_7=16383, var_1_8=0] [L39] unsigned long int stepLocal_0 = last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))); [L40] COND FALSE !(stepLocal_0 != last_1_var_1_10) [L45] var_1_1 = var_1_9 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L47] signed short int stepLocal_2 = var_1_6; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, var_1_10=256, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L48] COND FALSE !(\read(var_1_11)) [L55] var_1_10 = var_1_7 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L57] unsigned long int stepLocal_3 = var_1_10; VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, stepLocal_3=16383, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=-32, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L58] COND FALSE !(var_1_1 <= var_1_9) [L65] var_1_15 = var_1_7 VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, stepLocal_1=256, stepLocal_2=-1, stepLocal_3=16383, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L108] RET step() [L109] CALL, EXPR property() [L99] EXPR last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10))) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L99-L100] return ((((last_1_var_1_10 ^ ((((last_1_var_1_15) > (last_1_var_1_10)) ? (last_1_var_1_15) : (last_1_var_1_10)))) != last_1_var_1_10) ? ((last_1_var_1_10 == (var_1_6 - (var_1_7 - var_1_8))) ? (var_1_1 == ((float) var_1_9)) : 1) : (var_1_1 == ((float) var_1_9))) && (var_1_11 ? (((var_1_7 % var_1_12) >= var_1_6) ? (var_1_10 == ((unsigned long int) ((var_1_13 + var_1_14) - var_1_7))) : (var_1_10 == ((unsigned long int) var_1_12))) : (var_1_10 == ((unsigned long int) var_1_7)))) && ((var_1_1 <= var_1_9) ? ((var_1_10 > (last_1_var_1_15 + (var_1_10 + var_1_7))) ? (var_1_15 == ((signed long int) var_1_7)) : (var_1_15 == ((signed long int) -5))) : (var_1_15 == ((signed long int) var_1_7))) ; [L109] RET, EXPR property() [L109] CALL __VERIFIER_assert(property()) [L19] COND TRUE !(cond) VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] [L19] reach_error() VAL [isInitial=1, last_1_var_1_10=256, last_1_var_1_15=-32, var_1_10=16383, var_1_11=0, var_1_12=206, var_1_13=1073741823, var_1_14=1073741824, var_1_15=16383, var_1_1=2, var_1_6=-1, var_1_7=16383, var_1_8=0, var_1_9=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 61 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.2s, OverallIterations: 5, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 185 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 185 mSDsluCounter, 645 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 356 mSDsCounter, 124 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 145 IncrementalHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 124 mSolverCounterUnsat, 289 mSDtfsCounter, 145 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=117occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 41 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 763 NumberOfCodeBlocks, 763 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 534 ConstructedInterpolants, 0 QuantifiedInterpolants, 1284 SizeOfPredicates, 0 NumberOfNonLiveVariables, 252 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 2370/2400 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 [2024-11-28 04:41:57,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash bf5dbfe5ddcce299137d12379a3532fad5a0b1d2b0a83e3f07b3ec288904adfe --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:42:00,652 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:42:00,792 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-11-28 04:42:00,800 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:42:00,801 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:42:00,853 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:42:00,854 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:42:00,855 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:42:00,855 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:42:00,856 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:42:00,856 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 04:42:00,857 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 04:42:00,858 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:42:00,858 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:42:00,858 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:42:00,858 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:42:00,860 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 04:42:00,861 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:42:00,861 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:42:00,861 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:42:00,861 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 04:42:00,861 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 04:42:00,861 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 04:42:00,861 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-28 04:42:00,861 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-28 04:42:00,861 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-28 04:42:00,861 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:42:00,862 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:42:00,862 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:42:00,862 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:42:00,862 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 04:42:00,863 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:42:00,863 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:42:00,864 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:42:00,864 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:00,864 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:42:00,864 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:42:00,864 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 04:42:00,865 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 04:42:00,865 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:00,865 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:42:00,865 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 04:42:00,866 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 04:42:00,866 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 04:42:00,866 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-11-28 04:42:00,867 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-28 04:42:00,867 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 04:42:00,867 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 04:42:00,867 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 04:42:00,867 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 04:42:00,867 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_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bf5dbfe5ddcce299137d12379a3532fad5a0b1d2b0a83e3f07b3ec288904adfe [2024-11-28 04:42:01,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:42:01,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:42:01,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:42:01,268 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:42:01,269 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:42:01,270 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-28 04:42:04,936 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/data/2e39a916b/022003f937b744cf892b571128fd1f25/FLAG71ba9f1d2 [2024-11-28 04:42:05,255 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:42:05,257 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-28 04:42:05,269 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/data/2e39a916b/022003f937b744cf892b571128fd1f25/FLAG71ba9f1d2 [2024-11-28 04:42:05,537 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/data/2e39a916b/022003f937b744cf892b571128fd1f25 [2024-11-28 04:42:05,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:42:05,543 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:42:05,546 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:42:05,546 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:42:05,552 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:42:05,553 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:05,557 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73cd9b77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05, skipping insertion in model container [2024-11-28 04:42:05,558 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:05,583 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:42:05,796 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_50819552-3cba-499b-972e-1318aa364e0b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i[915,928] [2024-11-28 04:42:05,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:42:05,863 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:42:05,877 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_50819552-3cba-499b-972e-1318aa364e0b/sv-benchmarks/c/hardness-nfm22/hardness_loopvsstraightlinecode_25-while_file-18.i[915,928] [2024-11-28 04:42:05,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:42:05,931 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:42:05,931 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05 WrapperNode [2024-11-28 04:42:05,932 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:42:05,933 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:42:05,933 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:42:05,933 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:42:05,944 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:05,955 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:05,983 INFO L138 Inliner]: procedures = 27, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 106 [2024-11-28 04:42:05,983 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:42:05,984 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:42:05,984 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:42:05,984 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:42:05,996 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:05,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:06,000 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:06,014 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]. [2024-11-28 04:42:06,014 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:06,015 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:06,024 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:06,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:06,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:06,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:06,033 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:06,037 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:42:06,038 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:42:06,038 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:42:06,038 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:42:06,039 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (1/1) ... [2024-11-28 04:42:06,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 04:42:06,067 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:42:06,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 04:42:06,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 04:42:06,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:42:06,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-28 04:42:06,125 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 04:42:06,125 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 04:42:06,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:42:06,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:42:06,225 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:42:06,227 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:42:06,591 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-28 04:42:06,591 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:42:06,605 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:42:06,605 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 04:42:06,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:06 BoogieIcfgContainer [2024-11-28 04:42:06,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:42:06,610 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 04:42:06,610 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 04:42:06,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 04:42:06,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 04:42:05" (1/3) ... [2024-11-28 04:42:06,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1595c0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:42:06, skipping insertion in model container [2024-11-28 04:42:06,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:42:05" (2/3) ... [2024-11-28 04:42:06,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1595c0d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 04:42:06, skipping insertion in model container [2024-11-28 04:42:06,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:42:06" (3/3) ... [2024-11-28 04:42:06,621 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_loopvsstraightlinecode_25-while_file-18.i [2024-11-28 04:42:06,642 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 04:42:06,644 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_loopvsstraightlinecode_25-while_file-18.i that has 2 procedures, 51 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 04:42:06,715 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 04:42:06,730 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;@419db16e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 04:42:06,731 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 04:42:06,736 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:42:06,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 04:42:06,748 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:06,749 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:06,749 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:06,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:06,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1155150215, now seen corresponding path program 1 times [2024-11-28 04:42:06,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:42:06,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1356456141] [2024-11-28 04:42:06,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:06,791 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 [2024-11-28 04:42:06,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:42:06,798 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:42:06,800 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-28 04:42:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:07,109 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 04:42:07,123 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:07,197 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 394 trivial. 0 not checked. [2024-11-28 04:42:07,198 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:42:07,199 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:42:07,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1356456141] [2024-11-28 04:42:07,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1356456141] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:07,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:07,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 04:42:07,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200514442] [2024-11-28 04:42:07,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:07,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 04:42:07,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:42:07,240 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 04:42:07,241 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:42:07,244 INFO L87 Difference]: Start difference. First operand has 51 states, 32 states have (on average 1.34375) internal successors, (43), 33 states have internal predecessors, (43), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:42:07,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:07,285 INFO L93 Difference]: Finished difference Result 95 states and 160 transitions. [2024-11-28 04:42:07,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 04:42:07,289 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 102 [2024-11-28 04:42:07,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:07,297 INFO L225 Difference]: With dead ends: 95 [2024-11-28 04:42:07,299 INFO L226 Difference]: Without dead ends: 47 [2024-11-28 04:42:07,303 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 04:42:07,308 INFO L435 NwaCegarLoop]: 68 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, 68 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 [2024-11-28 04:42:07,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:42:07,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-11-28 04:42:07,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-11-28 04:42:07,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 29 states have (on average 1.2413793103448276) internal successors, (36), 29 states have internal predecessors, (36), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-28 04:42:07,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 68 transitions. [2024-11-28 04:42:07,374 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 68 transitions. Word has length 102 [2024-11-28 04:42:07,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:07,375 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 68 transitions. [2024-11-28 04:42:07,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-28 04:42:07,376 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 68 transitions. [2024-11-28 04:42:07,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-28 04:42:07,384 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:07,384 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:07,392 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-28 04:42:07,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:42:07,589 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:07,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:07,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2122845959, now seen corresponding path program 1 times [2024-11-28 04:42:07,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:42:07,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1193602319] [2024-11-28 04:42:07,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:07,591 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:42:07,591 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:42:07,596 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:42:07,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-28 04:42:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:07,909 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:42:07,920 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:09,397 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:42:09,397 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:42:09,397 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:42:09,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1193602319] [2024-11-28 04:42:09,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1193602319] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:09,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:09,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:42:09,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93896039] [2024-11-28 04:42:09,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:09,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:42:09,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:42:09,403 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:42:09,403 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:42:09,405 INFO L87 Difference]: Start difference. First operand 47 states and 68 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:42:10,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:10,053 INFO L93 Difference]: Finished difference Result 136 states and 199 transitions. [2024-11-28 04:42:10,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:42:10,057 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 102 [2024-11-28 04:42:10,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:10,060 INFO L225 Difference]: With dead ends: 136 [2024-11-28 04:42:10,063 INFO L226 Difference]: Without dead ends: 92 [2024-11-28 04:42:10,064 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:42:10,065 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 40 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:10,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 204 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 04:42:10,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-28 04:42:10,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 78. [2024-11-28 04:42:10,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 43 states have (on average 1.1627906976744187) internal successors, (50), 43 states have internal predecessors, (50), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 04:42:10,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 114 transitions. [2024-11-28 04:42:10,119 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 114 transitions. Word has length 102 [2024-11-28 04:42:10,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:10,120 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 114 transitions. [2024-11-28 04:42:10,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:42:10,120 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 114 transitions. [2024-11-28 04:42:10,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 04:42:10,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:10,123 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:10,130 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:42:10,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:42:10,325 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:10,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:10,326 INFO L85 PathProgramCache]: Analyzing trace with hash -679720955, now seen corresponding path program 1 times [2024-11-28 04:42:10,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:42:10,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521838219] [2024-11-28 04:42:10,328 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:10,329 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 [2024-11-28 04:42:10,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:42:10,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:42:10,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-28 04:42:10,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:10,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:42:10,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:22,283 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:42:22,283 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:42:22,284 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:42:22,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521838219] [2024-11-28 04:42:22,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521838219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:42:22,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:42:22,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-28 04:42:22,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896664281] [2024-11-28 04:42:22,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:42:22,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:42:22,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:42:22,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:42:22,288 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:42:22,288 INFO L87 Difference]: Start difference. First operand 78 states and 114 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:42:23,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:23,792 INFO L93 Difference]: Finished difference Result 122 states and 169 transitions. [2024-11-28 04:42:23,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:42:23,797 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 103 [2024-11-28 04:42:23,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:23,801 INFO L225 Difference]: With dead ends: 122 [2024-11-28 04:42:23,805 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 04:42:23,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=54, Invalid=156, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:42:23,807 INFO L435 NwaCegarLoop]: 54 mSDtfsCounter, 91 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 324 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:23,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 324 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-28 04:42:23,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 04:42:23,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 86. [2024-11-28 04:42:23,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 51 states have (on average 1.196078431372549) internal successors, (61), 51 states have internal predecessors, (61), 32 states have call successors, (32), 2 states have call predecessors, (32), 2 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-28 04:42:23,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 125 transitions. [2024-11-28 04:42:23,844 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 125 transitions. Word has length 103 [2024-11-28 04:42:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:23,845 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 125 transitions. [2024-11-28 04:42:23,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:42:23,845 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 125 transitions. [2024-11-28 04:42:23,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-28 04:42:23,847 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:23,847 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:23,854 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-28 04:42:24,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:42:24,048 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:24,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:24,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1359779325, now seen corresponding path program 1 times [2024-11-28 04:42:24,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:42:24,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [135724769] [2024-11-28 04:42:24,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:24,050 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 [2024-11-28 04:42:24,050 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:42:24,053 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:42:24,057 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-28 04:42:24,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:24,231 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 04:42:24,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:25,673 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 252 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2024-11-28 04:42:25,675 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:26,120 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 18 proven. 27 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2024-11-28 04:42:26,120 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:42:26,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [135724769] [2024-11-28 04:42:26,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [135724769] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:42:26,121 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:42:26,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-11-28 04:42:26,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891873968] [2024-11-28 04:42:26,122 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-28 04:42:26,123 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:42:26,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:42:26,124 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:42:26,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:42:26,125 INFO L87 Difference]: Start difference. First operand 86 states and 125 transitions. Second operand has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-28 04:42:27,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:42:27,923 INFO L93 Difference]: Finished difference Result 200 states and 271 transitions. [2024-11-28 04:42:27,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-28 04:42:27,925 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) Word has length 103 [2024-11-28 04:42:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:42:27,929 INFO L225 Difference]: With dead ends: 200 [2024-11-28 04:42:27,933 INFO L226 Difference]: Without dead ends: 156 [2024-11-28 04:42:27,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 219 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=188, Invalid=318, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:42:27,935 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 125 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:42:27,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 229 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-28 04:42:27,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2024-11-28 04:42:27,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 121. [2024-11-28 04:42:27,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 76 states have (on average 1.1710526315789473) internal successors, (89), 77 states have internal predecessors, (89), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 04:42:27,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 165 transitions. [2024-11-28 04:42:27,978 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 165 transitions. Word has length 103 [2024-11-28 04:42:27,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:42:27,979 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 165 transitions. [2024-11-28 04:42:27,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 5.181818181818182) internal successors, (57), 11 states have internal predecessors, (57), 4 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 4 states have call predecessors, (32), 4 states have call successors, (32) [2024-11-28 04:42:27,981 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 165 transitions. [2024-11-28 04:42:27,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 04:42:27,987 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:42:27,987 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:42:27,996 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-28 04:42:28,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:42:28,188 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:42:28,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:42:28,189 INFO L85 PathProgramCache]: Analyzing trace with hash 167926579, now seen corresponding path program 1 times [2024-11-28 04:42:28,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:42:28,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1480045497] [2024-11-28 04:42:28,189 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:28,189 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 [2024-11-28 04:42:28,189 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:42:28,191 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:42:28,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-28 04:42:28,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:28,385 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:42:28,394 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:42:29,191 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 123 proven. 39 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-28 04:42:29,191 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:42:29,662 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:42:29,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1480045497] [2024-11-28 04:42:29,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1480045497] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:42:29,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [101582402] [2024-11-28 04:42:29,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:42:29,663 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:42:29,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:42:29,680 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:42:29,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2024-11-28 04:42:30,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:42:30,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:42:30,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:24,359 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:43:24,360 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:43:24,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [101582402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:43:24,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:43:24,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [8] total 18 [2024-11-28 04:43:24,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966953786] [2024-11-28 04:43:24,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:43:24,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:43:24,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:43:24,362 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:43:24,362 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=393, Unknown=0, NotChecked=0, Total=462 [2024-11-28 04:43:24,363 INFO L87 Difference]: Start difference. First operand 121 states and 165 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:43:25,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:43:25,350 INFO L93 Difference]: Finished difference Result 151 states and 199 transitions. [2024-11-28 04:43:25,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:43:25,350 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2024-11-28 04:43:25,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:43:25,354 INFO L225 Difference]: With dead ends: 151 [2024-11-28 04:43:25,354 INFO L226 Difference]: Without dead ends: 149 [2024-11-28 04:43:25,355 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 292 GetRequests, 270 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=81, Invalid=471, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:43:25,355 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 41 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:43:25,356 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 329 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:43:25,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-28 04:43:25,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 127. [2024-11-28 04:43:25,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 83 states have internal predecessors, (97), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 04:43:25,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 173 transitions. [2024-11-28 04:43:25,402 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 173 transitions. Word has length 104 [2024-11-28 04:43:25,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:43:25,402 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 173 transitions. [2024-11-28 04:43:25,403 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:43:25,403 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 173 transitions. [2024-11-28 04:43:25,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 04:43:25,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:43:25,405 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:43:25,411 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2024-11-28 04:43:25,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-28 04:43:25,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-28 04:43:25,806 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:43:25,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:43:25,807 INFO L85 PathProgramCache]: Analyzing trace with hash 169773621, now seen corresponding path program 1 times [2024-11-28 04:43:25,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:43:25,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [306373136] [2024-11-28 04:43:25,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:43:25,808 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 [2024-11-28 04:43:25,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:43:25,810 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:43:25,812 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-28 04:43:25,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:43:25,982 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:43:25,985 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:43:33,607 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 123 proven. 39 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2024-11-28 04:43:33,607 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:46:30,492 WARN L286 SmtUtils]: Spent 12.34s on a formula simplification that was a NOOP. DAG size: 238 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:46:47,422 WARN L286 SmtUtils]: Spent 7.75s on a formula simplification that was a NOOP. DAG size: 167 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-28 04:47:24,200 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:47:24,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [306373136] [2024-11-28 04:47:24,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [306373136] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:47:24,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1558432246] [2024-11-28 04:47:24,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:47:24,201 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:47:24,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:47:24,204 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:47:24,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (9)] Waiting until timeout for monitored process [2024-11-28 04:47:24,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:47:24,675 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:47:24,678 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:08,222 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:48:08,222 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:48:08,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1558432246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:48:08,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:48:08,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14] total 22 [2024-11-28 04:48:08,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913163403] [2024-11-28 04:48:08,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:48:08,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:48:08,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:48:08,224 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:48:08,226 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=773, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:48:08,226 INFO L87 Difference]: Start difference. First operand 127 states and 173 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:10,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:48:10,467 INFO L93 Difference]: Finished difference Result 151 states and 198 transitions. [2024-11-28 04:48:10,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:48:10,468 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2024-11-28 04:48:10,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:48:10,469 INFO L225 Difference]: With dead ends: 151 [2024-11-28 04:48:10,469 INFO L226 Difference]: Without dead ends: 149 [2024-11-28 04:48:10,470 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 312 ImplicationChecksByTransitivity, 59.3s TimeCoverageRelationStatistics Valid=183, Invalid=873, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:48:10,470 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 30 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 442 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:48:10,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 442 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:48:10,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2024-11-28 04:48:10,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 127. [2024-11-28 04:48:10,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 82 states have (on average 1.1829268292682926) internal successors, (97), 83 states have internal predecessors, (97), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 04:48:10,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 173 transitions. [2024-11-28 04:48:10,497 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 173 transitions. Word has length 104 [2024-11-28 04:48:10,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:48:10,497 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 173 transitions. [2024-11-28 04:48:10,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:48:10,498 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 173 transitions. [2024-11-28 04:48:10,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 04:48:10,500 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:48:10,500 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:48:10,508 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:10,704 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (9)] Forceful destruction successful, exit code 0 [2024-11-28 04:48:10,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:48:10,901 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:48:10,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:48:10,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1406484764, now seen corresponding path program 1 times [2024-11-28 04:48:10,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:48:10,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1727031380] [2024-11-28 04:48:10,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:48:10,902 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 [2024-11-28 04:48:10,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:48:10,905 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:48:10,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-28 04:48:11,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:48:11,052 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:48:11,057 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:48:21,314 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:48:21,314 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:51:42,673 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-28 04:51:42,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1727031380] [2024-11-28 04:51:42,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1727031380] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:51:42,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1264019545] [2024-11-28 04:51:42,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:51:42,674 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-28 04:51:42,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 [2024-11-28 04:51:42,676 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-28 04:51:42,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (11)] Waiting until timeout for monitored process [2024-11-28 04:51:43,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:51:43,244 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-28 04:51:43,248 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:52:23,507 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 282 proven. 48 refuted. 0 times theorem prover too weak. 150 trivial. 0 not checked. [2024-11-28 04:52:23,507 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:55:53,677 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-28 04:55:53,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1264019545] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:55:53,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:55:53,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [14, 17] total 37 [2024-11-28 04:55:53,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836066181] [2024-11-28 04:55:53,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:55:53,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:55:53,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-28 04:55:53,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:55:53,680 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=211, Invalid=1508, Unknown=3, NotChecked=0, Total=1722 [2024-11-28 04:55:53,680 INFO L87 Difference]: Start difference. First operand 127 states and 173 transitions. Second operand has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:56:17,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:56:17,655 INFO L93 Difference]: Finished difference Result 153 states and 202 transitions. [2024-11-28 04:56:17,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 04:56:17,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 104 [2024-11-28 04:56:17,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:56:17,660 INFO L225 Difference]: With dead ends: 153 [2024-11-28 04:56:17,661 INFO L226 Difference]: Without dead ends: 151 [2024-11-28 04:56:17,662 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 281 SyntacticMatches, 1 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 771 ImplicationChecksByTransitivity, 63.2s TimeCoverageRelationStatistics Valid=291, Invalid=2058, Unknown=3, NotChecked=0, Total=2352 [2024-11-28 04:56:17,662 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 52 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:56:17,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 397 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-28 04:56:17,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-28 04:56:17,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 129. [2024-11-28 04:56:17,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 85 states have internal predecessors, (100), 38 states have call successors, (38), 6 states have call predecessors, (38), 6 states have return successors, (38), 37 states have call predecessors, (38), 38 states have call successors, (38) [2024-11-28 04:56:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 176 transitions. [2024-11-28 04:56:17,698 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 176 transitions. Word has length 104 [2024-11-28 04:56:17,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:56:17,698 INFO L471 AbstractCegarLoop]: Abstraction has 129 states and 176 transitions. [2024-11-28 04:56:17,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.4545454545454546) internal successors, (27), 11 states have internal predecessors, (27), 1 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2024-11-28 04:56:17,700 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 176 transitions. [2024-11-28 04:56:17,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-28 04:56:17,702 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:56:17,702 INFO L218 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:56:17,711 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-28 04:56:17,906 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt (11)] Ended with exit code 0 [2024-11-28 04:56:18,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/cvc4 --incremental --print-success --lang smt [2024-11-28 04:56:18,103 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:56:18,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:56:18,104 INFO L85 PathProgramCache]: Analyzing trace with hash -1113475170, now seen corresponding path program 1 times [2024-11-28 04:56:18,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-28 04:56:18,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1558087765] [2024-11-28 04:56:18,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:56:18,104 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 [2024-11-28 04:56:18,104 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat [2024-11-28 04:56:18,106 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-28 04:56:18,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_50819552-3cba-499b-972e-1318aa364e0b/bin/uautomizer-verify-aQ6SnzHsRB/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2024-11-28 04:56:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:56:18,227 INFO L256 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:56:18,230 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:56:23,868 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 15 proven. 45 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-11-28 04:56:23,868 INFO L312 TraceCheckSpWp]: Computing backward predicates...