./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.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_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3471f06dc12ad44598fd2961f3d0cb274ed30b5886ce0a764ca9d78e786b896 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:24:33,595 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:24:33,651 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-02 08:24:33,656 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:24:33,656 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:24:33,676 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:24:33,677 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:24:33,677 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:24:33,677 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:24:33,677 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:24:33,677 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:24:33,678 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:24:33,678 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:24:33,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:24:33,678 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:24:33,678 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:24:33,678 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:24:33,678 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:24:33,678 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 08:24:33,678 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:24:33,679 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:24:33,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:24:33,680 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:24:33,680 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:24:33,680 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:24:33,680 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:24:33,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:24:33,680 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:24:33,680 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:24:33,680 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:24:33,680 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:24:33,680 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-02 08:24:33,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-02 08:24:33,681 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:24:33,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:24:33,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:24:33,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:24:33,681 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_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3471f06dc12ad44598fd2961f3d0cb274ed30b5886ce0a764ca9d78e786b896 [2024-12-02 08:24:33,913 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:24:33,922 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:24:33,924 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:24:33,925 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:24:33,925 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:24:33,926 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-12-02 08:24:36,531 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/data/6f743ac0d/ffc9e4c783334703a453d5a9f5af60fc/FLAG48040d12b [2024-12-02 08:24:36,758 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:24:36,758 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-12-02 08:24:36,767 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/data/6f743ac0d/ffc9e4c783334703a453d5a9f5af60fc/FLAG48040d12b [2024-12-02 08:24:37,080 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/data/6f743ac0d/ffc9e4c783334703a453d5a9f5af60fc [2024-12-02 08:24:37,082 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:24:37,083 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:24:37,084 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:24:37,084 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:24:37,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:24:37,088 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f80889c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37, skipping insertion in model container [2024-12-02 08:24:37,088 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,109 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:24:37,215 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_b1a97fc5-2822-463a-b6d0-2a451dc074d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i[916,929] [2024-12-02 08:24:37,320 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:24:37,334 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:24:37,344 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_b1a97fc5-2822-463a-b6d0-2a451dc074d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i[916,929] [2024-12-02 08:24:37,398 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:24:37,412 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:24:37,413 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37 WrapperNode [2024-12-02 08:24:37,413 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:24:37,414 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:24:37,414 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:24:37,414 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:24:37,419 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,432 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,475 INFO L138 Inliner]: procedures = 26, calls = 76, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 512 [2024-12-02 08:24:37,475 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:24:37,476 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:24:37,476 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:24:37,476 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:24:37,485 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,491 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,513 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:24:37,513 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,513 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,528 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,531 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,537 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,542 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,546 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,554 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:24:37,555 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:24:37,555 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:24:37,555 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:24:37,556 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (1/1) ... [2024-12-02 08:24:37,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:24:37,573 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:24:37,584 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:24:37,586 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:24:37,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:24:37,606 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:24:37,606 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:24:37,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 08:24:37,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:24:37,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:24:37,704 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:24:37,706 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:24:38,398 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-12-02 08:24:38,398 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:24:38,412 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:24:38,412 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:24:38,412 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:24:38 BoogieIcfgContainer [2024-12-02 08:24:38,412 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:24:38,414 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:24:38,414 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:24:38,418 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:24:38,418 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:24:37" (1/3) ... [2024-12-02 08:24:38,419 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa46614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:24:38, skipping insertion in model container [2024-12-02 08:24:38,419 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:24:37" (2/3) ... [2024-12-02 08:24:38,420 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aa46614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:24:38, skipping insertion in model container [2024-12-02 08:24:38,420 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:24:38" (3/3) ... [2024-12-02 08:24:38,421 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-12-02 08:24:38,432 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:24:38,434 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-95.i that has 2 procedures, 218 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:24:38,484 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:24:38,494 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;@1d0ac238, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:24:38,494 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:24:38,498 INFO L276 IsEmpty]: Start isEmpty. Operand has 218 states, 152 states have (on average 1.5526315789473684) internal successors, (236), 153 states have internal predecessors, (236), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-12-02 08:24:38,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-12-02 08:24:38,516 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:24:38,516 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:24:38,517 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:24:38,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:24:38,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1225199051, now seen corresponding path program 1 times [2024-12-02 08:24:38,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:24:38,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015293582] [2024-12-02 08:24:38,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:38,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:24:38,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:24:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 124 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2024-12-02 08:24:38,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:24:38,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015293582] [2024-12-02 08:24:38,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015293582] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:24:38,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043467082] [2024-12-02 08:24:38,971 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:38,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:24:38,972 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:24:38,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:24:38,976 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 08:24:39,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:24:39,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 921 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:24:39,276 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:24:39,321 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 124 proven. 0 refuted. 0 times theorem prover too weak. 7688 trivial. 0 not checked. [2024-12-02 08:24:39,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:24:39,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043467082] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:24:39,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-12-02 08:24:39,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-12-02 08:24:39,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420319546] [2024-12-02 08:24:39,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:24:39,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:24:39,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:24:39,345 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:24:39,345 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:24:39,348 INFO L87 Difference]: Start difference. First operand has 218 states, 152 states have (on average 1.5526315789473684) internal successors, (236), 153 states have internal predecessors, (236), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) [2024-12-02 08:24:39,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:24:39,391 INFO L93 Difference]: Finished difference Result 428 states and 779 transitions. [2024-12-02 08:24:39,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:24:39,393 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) Word has length 408 [2024-12-02 08:24:39,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:24:39,401 INFO L225 Difference]: With dead ends: 428 [2024-12-02 08:24:39,401 INFO L226 Difference]: Without dead ends: 213 [2024-12-02 08:24:39,405 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 409 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:24:39,408 INFO L435 NwaCegarLoop]: 352 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, 352 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:24:39,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 352 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:24:39,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-12-02 08:24:39,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2024-12-02 08:24:39,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 148 states have (on average 1.527027027027027) internal successors, (226), 148 states have internal predecessors, (226), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-12-02 08:24:39,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 352 transitions. [2024-12-02 08:24:39,481 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 352 transitions. Word has length 408 [2024-12-02 08:24:39,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:24:39,481 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 352 transitions. [2024-12-02 08:24:39,481 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 49.0) internal successors, (98), 2 states have internal predecessors, (98), 2 states have call successors, (63), 2 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 2 states have call successors, (63) [2024-12-02 08:24:39,482 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 352 transitions. [2024-12-02 08:24:39,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-12-02 08:24:39,492 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:24:39,492 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:24:39,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 08:24:39,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-12-02 08:24:39,693 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:24:39,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:24:39,694 INFO L85 PathProgramCache]: Analyzing trace with hash 1394793373, now seen corresponding path program 1 times [2024-12-02 08:24:39,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:24:39,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251062726] [2024-12-02 08:24:39,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:39,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:24:39,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:24:40,113 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-12-02 08:24:40,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:24:40,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [251062726] [2024-12-02 08:24:40,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [251062726] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:24:40,113 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:24:40,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:24:40,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396787108] [2024-12-02 08:24:40,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:24:40,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:24:40,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:24:40,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:24:40,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:24:40,117 INFO L87 Difference]: Start difference. First operand 213 states and 352 transitions. Second operand has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:24:40,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:24:40,372 INFO L93 Difference]: Finished difference Result 775 states and 1286 transitions. [2024-12-02 08:24:40,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:24:40,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 408 [2024-12-02 08:24:40,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:24:40,379 INFO L225 Difference]: With dead ends: 775 [2024-12-02 08:24:40,379 INFO L226 Difference]: Without dead ends: 565 [2024-12-02 08:24:40,380 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 [2024-12-02 08:24:40,381 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 668 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 668 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:24:40,381 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [668 Valid, 1232 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:24:40,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2024-12-02 08:24:40,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 556. [2024-12-02 08:24:40,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 429 states have (on average 1.5827505827505828) internal successors, (679), 432 states have internal predecessors, (679), 122 states have call successors, (122), 4 states have call predecessors, (122), 4 states have return successors, (122), 119 states have call predecessors, (122), 122 states have call successors, (122) [2024-12-02 08:24:40,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 923 transitions. [2024-12-02 08:24:40,446 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 923 transitions. Word has length 408 [2024-12-02 08:24:40,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:24:40,448 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 923 transitions. [2024-12-02 08:24:40,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.0) internal successors, (96), 4 states have internal predecessors, (96), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:24:40,448 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 923 transitions. [2024-12-02 08:24:40,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-12-02 08:24:40,453 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:24:40,453 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:24:40,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-02 08:24:40,454 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:24:40,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:24:40,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1950170470, now seen corresponding path program 1 times [2024-12-02 08:24:40,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:24:40,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987720561] [2024-12-02 08:24:40,455 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:40,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:24:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:24:41,016 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-12-02 08:24:41,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:24:41,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987720561] [2024-12-02 08:24:41,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987720561] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:24:41,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:24:41,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:24:41,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633198479] [2024-12-02 08:24:41,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:24:41,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:24:41,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:24:41,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:24:41,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:24:41,019 INFO L87 Difference]: Start difference. First operand 556 states and 923 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:24:41,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:24:41,146 INFO L93 Difference]: Finished difference Result 1453 states and 2404 transitions. [2024-12-02 08:24:41,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:24:41,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 409 [2024-12-02 08:24:41,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:24:41,155 INFO L225 Difference]: With dead ends: 1453 [2024-12-02 08:24:41,155 INFO L226 Difference]: Without dead ends: 900 [2024-12-02 08:24:41,157 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:24:41,157 INFO L435 NwaCegarLoop]: 432 mSDtfsCounter, 237 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 760 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:24:41,158 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 760 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:24:41,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2024-12-02 08:24:41,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 897. [2024-12-02 08:24:41,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 897 states, 674 states have (on average 1.5593471810089021) internal successors, (1051), 678 states have internal predecessors, (1051), 214 states have call successors, (214), 8 states have call predecessors, (214), 8 states have return successors, (214), 210 states have call predecessors, (214), 214 states have call successors, (214) [2024-12-02 08:24:41,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 897 states to 897 states and 1479 transitions. [2024-12-02 08:24:41,249 INFO L78 Accepts]: Start accepts. Automaton has 897 states and 1479 transitions. Word has length 409 [2024-12-02 08:24:41,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:24:41,250 INFO L471 AbstractCegarLoop]: Abstraction has 897 states and 1479 transitions. [2024-12-02 08:24:41,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:24:41,250 INFO L276 IsEmpty]: Start isEmpty. Operand 897 states and 1479 transitions. [2024-12-02 08:24:41,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-12-02 08:24:41,254 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:24:41,254 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:24:41,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-02 08:24:41,255 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:24:41,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:24:41,256 INFO L85 PathProgramCache]: Analyzing trace with hash -1249264057, now seen corresponding path program 1 times [2024-12-02 08:24:41,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:24:41,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33531705] [2024-12-02 08:24:41,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:41,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:24:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:24:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-12-02 08:24:41,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:24:41,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33531705] [2024-12-02 08:24:41,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33531705] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:24:41,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:24:41,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:24:41,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529224775] [2024-12-02 08:24:41,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:24:41,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:24:41,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:24:41,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:24:41,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:24:41,473 INFO L87 Difference]: Start difference. First operand 897 states and 1479 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:24:41,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:24:41,558 INFO L93 Difference]: Finished difference Result 1462 states and 2408 transitions. [2024-12-02 08:24:41,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:24:41,559 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 409 [2024-12-02 08:24:41,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:24:41,565 INFO L225 Difference]: With dead ends: 1462 [2024-12-02 08:24:41,565 INFO L226 Difference]: Without dead ends: 909 [2024-12-02 08:24:41,567 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:24:41,568 INFO L435 NwaCegarLoop]: 459 mSDtfsCounter, 201 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:24:41,568 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 795 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:24:41,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 909 states. [2024-12-02 08:24:41,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 909 to 736. [2024-12-02 08:24:41,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 736 states, 543 states have (on average 1.5414364640883977) internal successors, (837), 545 states have internal predecessors, (837), 184 states have call successors, (184), 8 states have call predecessors, (184), 8 states have return successors, (184), 182 states have call predecessors, (184), 184 states have call successors, (184) [2024-12-02 08:24:41,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 736 states to 736 states and 1205 transitions. [2024-12-02 08:24:41,642 INFO L78 Accepts]: Start accepts. Automaton has 736 states and 1205 transitions. Word has length 409 [2024-12-02 08:24:41,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:24:41,643 INFO L471 AbstractCegarLoop]: Abstraction has 736 states and 1205 transitions. [2024-12-02 08:24:41,643 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:24:41,643 INFO L276 IsEmpty]: Start isEmpty. Operand 736 states and 1205 transitions. [2024-12-02 08:24:41,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-12-02 08:24:41,646 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:24:41,647 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:24:41,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-02 08:24:41,647 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:24:41,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:24:41,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1339530375, now seen corresponding path program 1 times [2024-12-02 08:24:41,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:24:41,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603743916] [2024-12-02 08:24:41,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:41,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:24:41,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:24:42,064 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-12-02 08:24:42,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:24:42,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603743916] [2024-12-02 08:24:42,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603743916] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:24:42,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:24:42,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:24:42,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366127266] [2024-12-02 08:24:42,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:24:42,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:24:42,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:24:42,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:24:42,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:24:42,066 INFO L87 Difference]: Start difference. First operand 736 states and 1205 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:24:42,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:24:42,210 INFO L93 Difference]: Finished difference Result 1533 states and 2493 transitions. [2024-12-02 08:24:42,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:24:42,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 409 [2024-12-02 08:24:42,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:24:42,218 INFO L225 Difference]: With dead ends: 1533 [2024-12-02 08:24:42,218 INFO L226 Difference]: Without dead ends: 800 [2024-12-02 08:24:42,220 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:24:42,221 INFO L435 NwaCegarLoop]: 405 mSDtfsCounter, 214 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 610 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-02 08:24:42,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 610 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-02 08:24:42,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-12-02 08:24:42,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 799. [2024-12-02 08:24:42,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 799 states, 574 states have (on average 1.5034843205574913) internal successors, (863), 577 states have internal predecessors, (863), 211 states have call successors, (211), 13 states have call predecessors, (211), 13 states have return successors, (211), 208 states have call predecessors, (211), 211 states have call successors, (211) [2024-12-02 08:24:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 799 states to 799 states and 1285 transitions. [2024-12-02 08:24:42,306 INFO L78 Accepts]: Start accepts. Automaton has 799 states and 1285 transitions. Word has length 409 [2024-12-02 08:24:42,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:24:42,307 INFO L471 AbstractCegarLoop]: Abstraction has 799 states and 1285 transitions. [2024-12-02 08:24:42,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:24:42,308 INFO L276 IsEmpty]: Start isEmpty. Operand 799 states and 1285 transitions. [2024-12-02 08:24:42,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-12-02 08:24:42,311 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:24:42,311 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:24:42,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-02 08:24:42,311 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:24:42,312 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:24:42,312 INFO L85 PathProgramCache]: Analyzing trace with hash -692890184, now seen corresponding path program 1 times [2024-12-02 08:24:42,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:24:42,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460782635] [2024-12-02 08:24:42,312 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:42,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:24:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:24:45,761 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-12-02 08:24:45,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:24:45,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460782635] [2024-12-02 08:24:45,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460782635] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:24:45,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:24:45,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-12-02 08:24:45,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772343131] [2024-12-02 08:24:45,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:24:45,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-12-02 08:24:45,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:24:45,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-12-02 08:24:45,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-12-02 08:24:45,763 INFO L87 Difference]: Start difference. First operand 799 states and 1285 transitions. Second operand has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:24:50,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:24:50,902 INFO L93 Difference]: Finished difference Result 1810 states and 2909 transitions. [2024-12-02 08:24:50,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-12-02 08:24:50,903 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 411 [2024-12-02 08:24:50,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:24:50,910 INFO L225 Difference]: With dead ends: 1810 [2024-12-02 08:24:50,910 INFO L226 Difference]: Without dead ends: 1410 [2024-12-02 08:24:50,911 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=92, Invalid=250, Unknown=0, NotChecked=0, Total=342 [2024-12-02 08:24:50,912 INFO L435 NwaCegarLoop]: 544 mSDtfsCounter, 1500 mSDsluCounter, 2376 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 318 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1500 SdHoareTripleChecker+Valid, 2920 SdHoareTripleChecker+Invalid, 1533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:24:50,912 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1500 Valid, 2920 Invalid, 1533 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [318 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2024-12-02 08:24:50,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1410 states. [2024-12-02 08:24:51,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1410 to 1386. [2024-12-02 08:24:51,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1386 states, 1053 states have (on average 1.5308641975308641) internal successors, (1612), 1061 states have internal predecessors, (1612), 306 states have call successors, (306), 26 states have call predecessors, (306), 26 states have return successors, (306), 298 states have call predecessors, (306), 306 states have call successors, (306) [2024-12-02 08:24:51,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1386 states to 1386 states and 2224 transitions. [2024-12-02 08:24:51,017 INFO L78 Accepts]: Start accepts. Automaton has 1386 states and 2224 transitions. Word has length 411 [2024-12-02 08:24:51,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:24:51,018 INFO L471 AbstractCegarLoop]: Abstraction has 1386 states and 2224 transitions. [2024-12-02 08:24:51,018 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.9) internal successors, (99), 10 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:24:51,018 INFO L276 IsEmpty]: Start isEmpty. Operand 1386 states and 2224 transitions. [2024-12-02 08:24:51,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-12-02 08:24:51,021 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:24:51,021 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:24:51,021 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-02 08:24:51,021 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:24:51,022 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:24:51,022 INFO L85 PathProgramCache]: Analyzing trace with hash -941036678, now seen corresponding path program 1 times [2024-12-02 08:24:51,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:24:51,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173628401] [2024-12-02 08:24:51,022 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:24:51,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:24:51,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:27:37,112 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-12-02 08:27:37,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:27:37,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173628401] [2024-12-02 08:27:37,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173628401] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:27:37,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:27:37,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-12-02 08:27:37,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512938118] [2024-12-02 08:27:37,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:27:37,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-12-02 08:27:37,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:27:37,114 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 08:27:37,114 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-02 08:27:37,114 INFO L87 Difference]: Start difference. First operand 1386 states and 2224 transitions. Second operand has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:27:37,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:27:37,607 INFO L93 Difference]: Finished difference Result 3167 states and 4950 transitions. [2024-12-02 08:27:37,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-12-02 08:27:37,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 411 [2024-12-02 08:27:37,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:27:37,618 INFO L225 Difference]: With dead ends: 3167 [2024-12-02 08:27:37,618 INFO L226 Difference]: Without dead ends: 1831 [2024-12-02 08:27:37,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-12-02 08:27:37,623 INFO L435 NwaCegarLoop]: 367 mSDtfsCounter, 108 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 1386 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:27:37,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 1386 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-02 08:27:37,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1831 states. [2024-12-02 08:27:37,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1831 to 1647. [2024-12-02 08:27:37,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1647 states, 1287 states have (on average 1.4832944832944832) internal successors, (1909), 1304 states have internal predecessors, (1909), 324 states have call successors, (324), 35 states have call predecessors, (324), 35 states have return successors, (324), 307 states have call predecessors, (324), 324 states have call successors, (324) [2024-12-02 08:27:37,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1647 states to 1647 states and 2557 transitions. [2024-12-02 08:27:37,831 INFO L78 Accepts]: Start accepts. Automaton has 1647 states and 2557 transitions. Word has length 411 [2024-12-02 08:27:37,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:27:37,832 INFO L471 AbstractCegarLoop]: Abstraction has 1647 states and 2557 transitions. [2024-12-02 08:27:37,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.142857142857142) internal successors, (99), 7 states have internal predecessors, (99), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:27:37,832 INFO L276 IsEmpty]: Start isEmpty. Operand 1647 states and 2557 transitions. [2024-12-02 08:27:37,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-12-02 08:27:37,836 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:27:37,836 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:27:37,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-02 08:27:37,837 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:27:37,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:27:37,837 INFO L85 PathProgramCache]: Analyzing trace with hash -260978308, now seen corresponding path program 1 times [2024-12-02 08:27:37,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:27:37,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329665645] [2024-12-02 08:27:37,837 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:27:37,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:27:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:27:39,094 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 84 proven. 102 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2024-12-02 08:27:39,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:27:39,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329665645] [2024-12-02 08:27:39,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329665645] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:27:39,095 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116537918] [2024-12-02 08:27:39,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:27:39,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:27:39,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:27:39,098 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:27:39,100 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 08:27:39,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:27:39,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 924 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-12-02 08:27:39,402 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:27:41,805 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 4337 proven. 462 refuted. 0 times theorem prover too weak. 3013 trivial. 0 not checked. [2024-12-02 08:27:41,806 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:27:43,030 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 144 proven. 225 refuted. 0 times theorem prover too weak. 7443 trivial. 0 not checked. [2024-12-02 08:27:43,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116537918] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:27:43,031 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:27:43,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16, 14] total 31 [2024-12-02 08:27:43,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877884236] [2024-12-02 08:27:43,031 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:27:43,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-12-02 08:27:43,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:27:43,034 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-12-02 08:27:43,034 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=194, Invalid=736, Unknown=0, NotChecked=0, Total=930 [2024-12-02 08:27:43,035 INFO L87 Difference]: Start difference. First operand 1647 states and 2557 transitions. Second operand has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 30 states have internal predecessors, (206), 8 states have call successors, (147), 5 states have call predecessors, (147), 9 states have return successors, (149), 8 states have call predecessors, (149), 8 states have call successors, (149) [2024-12-02 08:27:52,462 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:27:56,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:00,557 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:04,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:08,743 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:12,747 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:16,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:20,761 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:24,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:29,004 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:45,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:49,284 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:53,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:28:57,317 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:29:01,326 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:29:05,344 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-12-02 08:29:06,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:06,850 INFO L93 Difference]: Finished difference Result 9491 states and 14462 transitions. [2024-12-02 08:29:06,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 208 states. [2024-12-02 08:29:06,851 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 30 states have internal predecessors, (206), 8 states have call successors, (147), 5 states have call predecessors, (147), 9 states have return successors, (149), 8 states have call predecessors, (149), 8 states have call successors, (149) Word has length 411 [2024-12-02 08:29:06,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:06,876 INFO L225 Difference]: With dead ends: 9491 [2024-12-02 08:29:06,876 INFO L226 Difference]: Without dead ends: 7894 [2024-12-02 08:29:06,893 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1063 GetRequests, 832 SyntacticMatches, 1 SemanticMatches, 230 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22249 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=9430, Invalid=44162, Unknown=0, NotChecked=0, Total=53592 [2024-12-02 08:29:06,894 INFO L435 NwaCegarLoop]: 599 mSDtfsCounter, 14686 mSDsluCounter, 5754 mSDsCounter, 0 mSdLazyCounter, 5583 mSolverCounterSat, 4048 mSolverCounterUnsat, 16 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 72.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14727 SdHoareTripleChecker+Valid, 6353 SdHoareTripleChecker+Invalid, 9647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4048 IncrementalHoareTripleChecker+Valid, 5583 IncrementalHoareTripleChecker+Invalid, 16 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 73.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:06,894 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [14727 Valid, 6353 Invalid, 9647 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4048 Valid, 5583 Invalid, 16 Unknown, 0 Unchecked, 73.4s Time] [2024-12-02 08:29:06,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7894 states. [2024-12-02 08:29:07,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7894 to 3128. [2024-12-02 08:29:07,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3128 states, 2544 states have (on average 1.5007861635220126) internal successors, (3818), 2571 states have internal predecessors, (3818), 510 states have call successors, (510), 73 states have call predecessors, (510), 73 states have return successors, (510), 483 states have call predecessors, (510), 510 states have call successors, (510) [2024-12-02 08:29:07,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3128 states to 3128 states and 4838 transitions. [2024-12-02 08:29:07,492 INFO L78 Accepts]: Start accepts. Automaton has 3128 states and 4838 transitions. Word has length 411 [2024-12-02 08:29:07,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:07,492 INFO L471 AbstractCegarLoop]: Abstraction has 3128 states and 4838 transitions. [2024-12-02 08:29:07,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 6.645161290322581) internal successors, (206), 30 states have internal predecessors, (206), 8 states have call successors, (147), 5 states have call predecessors, (147), 9 states have return successors, (149), 8 states have call predecessors, (149), 8 states have call successors, (149) [2024-12-02 08:29:07,493 INFO L276 IsEmpty]: Start isEmpty. Operand 3128 states and 4838 transitions. [2024-12-02 08:29:07,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-12-02 08:29:07,496 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:07,496 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:07,503 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 08:29:07,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:07,697 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:29:07,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:07,697 INFO L85 PathProgramCache]: Analyzing trace with hash 741339069, now seen corresponding path program 1 times [2024-12-02 08:29:07,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:07,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686793055] [2024-12-02 08:29:07,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:07,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:07,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:10,502 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 366 proven. 342 refuted. 0 times theorem prover too weak. 7104 trivial. 0 not checked. [2024-12-02 08:29:10,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:10,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686793055] [2024-12-02 08:29:10,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686793055] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:29:10,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475522923] [2024-12-02 08:29:10,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:10,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:10,503 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:10,504 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:10,505 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 08:29:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:10,744 INFO L256 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-12-02 08:29:10,749 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:12,527 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 4289 proven. 234 refuted. 0 times theorem prover too weak. 3289 trivial. 0 not checked. [2024-12-02 08:29:12,528 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:29:13,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475522923] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:29:13,384 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-12-02 08:29:13,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8] total 22 [2024-12-02 08:29:13,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955048690] [2024-12-02 08:29:13,385 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-12-02 08:29:13,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-12-02 08:29:13,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:13,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-12-02 08:29:13,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2024-12-02 08:29:13,387 INFO L87 Difference]: Start difference. First operand 3128 states and 4838 transitions. Second operand has 22 states, 22 states have (on average 8.863636363636363) internal successors, (195), 22 states have internal predecessors, (195), 9 states have call successors, (126), 4 states have call predecessors, (126), 7 states have return successors, (126), 9 states have call predecessors, (126), 9 states have call successors, (126) [2024-12-02 08:29:25,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:25,189 INFO L93 Difference]: Finished difference Result 13027 states and 19868 transitions. [2024-12-02 08:29:25,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2024-12-02 08:29:25,190 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 8.863636363636363) internal successors, (195), 22 states have internal predecessors, (195), 9 states have call successors, (126), 4 states have call predecessors, (126), 7 states have return successors, (126), 9 states have call predecessors, (126), 9 states have call successors, (126) Word has length 412 [2024-12-02 08:29:25,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:25,218 INFO L225 Difference]: With dead ends: 13027 [2024-12-02 08:29:25,219 INFO L226 Difference]: Without dead ends: 9965 [2024-12-02 08:29:25,226 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 804 GetRequests, 691 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4622 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=2253, Invalid=10857, Unknown=0, NotChecked=0, Total=13110 [2024-12-02 08:29:25,227 INFO L435 NwaCegarLoop]: 495 mSDtfsCounter, 4357 mSDsluCounter, 4013 mSDsCounter, 0 mSdLazyCounter, 4548 mSolverCounterSat, 1085 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4364 SdHoareTripleChecker+Valid, 4508 SdHoareTripleChecker+Invalid, 5633 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1085 IncrementalHoareTripleChecker+Valid, 4548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.7s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:25,227 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4364 Valid, 4508 Invalid, 5633 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1085 Valid, 4548 Invalid, 0 Unknown, 0 Unchecked, 6.7s Time] [2024-12-02 08:29:25,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9965 states. [2024-12-02 08:29:25,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9965 to 4921. [2024-12-02 08:29:25,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4921 states, 3968 states have (on average 1.4768145161290323) internal successors, (5860), 4004 states have internal predecessors, (5860), 814 states have call successors, (814), 138 states have call predecessors, (814), 138 states have return successors, (814), 778 states have call predecessors, (814), 814 states have call successors, (814) [2024-12-02 08:29:25,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4921 states to 4921 states and 7488 transitions. [2024-12-02 08:29:25,879 INFO L78 Accepts]: Start accepts. Automaton has 4921 states and 7488 transitions. Word has length 412 [2024-12-02 08:29:25,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:25,879 INFO L471 AbstractCegarLoop]: Abstraction has 4921 states and 7488 transitions. [2024-12-02 08:29:25,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 8.863636363636363) internal successors, (195), 22 states have internal predecessors, (195), 9 states have call successors, (126), 4 states have call predecessors, (126), 7 states have return successors, (126), 9 states have call predecessors, (126), 9 states have call successors, (126) [2024-12-02 08:29:25,880 INFO L276 IsEmpty]: Start isEmpty. Operand 4921 states and 7488 transitions. [2024-12-02 08:29:25,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2024-12-02 08:29:25,886 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:25,887 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:25,897 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 08:29:26,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:26,087 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:29:26,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:26,088 INFO L85 PathProgramCache]: Analyzing trace with hash 493192575, now seen corresponding path program 1 times [2024-12-02 08:29:26,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:26,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449593085] [2024-12-02 08:29:26,088 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:26,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:26,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:26,674 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 63 proven. 123 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2024-12-02 08:29:26,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:26,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449593085] [2024-12-02 08:29:26,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449593085] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:29:26,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146085999] [2024-12-02 08:29:26,674 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:26,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:26,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:26,676 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:26,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 08:29:26,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:26,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-12-02 08:29:26,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:27,414 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 3548 proven. 123 refuted. 0 times theorem prover too weak. 4141 trivial. 0 not checked. [2024-12-02 08:29:27,414 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:29:27,792 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 63 proven. 123 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2024-12-02 08:29:27,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146085999] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:29:27,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:29:27,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 11 [2024-12-02 08:29:27,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30015273] [2024-12-02 08:29:27,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:29:27,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-02 08:29:27,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:27,794 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-02 08:29:27,794 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2024-12-02 08:29:27,794 INFO L87 Difference]: Start difference. First operand 4921 states and 7488 transitions. Second operand has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 3 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (106), 3 states have call predecessors, (106), 3 states have call successors, (106) [2024-12-02 08:29:29,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:29,726 INFO L93 Difference]: Finished difference Result 10221 states and 15465 transitions. [2024-12-02 08:29:29,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-12-02 08:29:29,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 3 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (106), 3 states have call predecessors, (106), 3 states have call successors, (106) Word has length 412 [2024-12-02 08:29:29,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:29,746 INFO L225 Difference]: With dead ends: 10221 [2024-12-02 08:29:29,746 INFO L226 Difference]: Without dead ends: 6929 [2024-12-02 08:29:29,750 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 842 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=336, Unknown=0, NotChecked=0, Total=506 [2024-12-02 08:29:29,751 INFO L435 NwaCegarLoop]: 419 mSDtfsCounter, 1294 mSDsluCounter, 1091 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 327 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1337 SdHoareTripleChecker+Valid, 1510 SdHoareTripleChecker+Invalid, 1166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:29,751 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1337 Valid, 1510 Invalid, 1166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:29:29,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6929 states. [2024-12-02 08:29:30,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6929 to 6171. [2024-12-02 08:29:30,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6171 states, 4894 states have (on average 1.4642419288925215) internal successors, (7166), 4938 states have internal predecessors, (7166), 1100 states have call successors, (1100), 176 states have call predecessors, (1100), 176 states have return successors, (1100), 1056 states have call predecessors, (1100), 1100 states have call successors, (1100) [2024-12-02 08:29:30,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6171 states to 6171 states and 9366 transitions. [2024-12-02 08:29:30,521 INFO L78 Accepts]: Start accepts. Automaton has 6171 states and 9366 transitions. Word has length 412 [2024-12-02 08:29:30,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:30,521 INFO L471 AbstractCegarLoop]: Abstraction has 6171 states and 9366 transitions. [2024-12-02 08:29:30,521 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.818181818181818) internal successors, (141), 11 states have internal predecessors, (141), 3 states have call successors, (104), 2 states have call predecessors, (104), 4 states have return successors, (106), 3 states have call predecessors, (106), 3 states have call successors, (106) [2024-12-02 08:29:30,521 INFO L276 IsEmpty]: Start isEmpty. Operand 6171 states and 9366 transitions. [2024-12-02 08:29:30,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 414 [2024-12-02 08:29:30,527 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:30,527 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:30,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 08:29:30,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-12-02 08:29:30,728 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:29:30,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:30,728 INFO L85 PathProgramCache]: Analyzing trace with hash 256323928, now seen corresponding path program 1 times [2024-12-02 08:29:30,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:30,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947067992] [2024-12-02 08:29:30,728 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:30,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:31,302 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 63 proven. 123 refuted. 0 times theorem prover too weak. 7626 trivial. 0 not checked. [2024-12-02 08:29:31,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:29:31,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947067992] [2024-12-02 08:29:31,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947067992] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 08:29:31,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815186788] [2024-12-02 08:29:31,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:31,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:31,302 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:31,304 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:31,305 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 08:29:31,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:31,562 INFO L256 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-12-02 08:29:31,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:32,983 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 3591 proven. 240 refuted. 0 times theorem prover too weak. 3981 trivial. 0 not checked. [2024-12-02 08:29:32,983 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:29:33,627 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 126 proven. 243 refuted. 0 times theorem prover too weak. 7443 trivial. 0 not checked. [2024-12-02 08:29:33,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815186788] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 08:29:33,627 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 08:29:33,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 20 [2024-12-02 08:29:33,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941013009] [2024-12-02 08:29:33,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 08:29:33,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-12-02 08:29:33,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-02 08:29:33,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-12-02 08:29:33,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2024-12-02 08:29:33,631 INFO L87 Difference]: Start difference. First operand 6171 states and 9366 transitions. Second operand has 20 states, 19 states have (on average 11.473684210526315) internal successors, (218), 18 states have internal predecessors, (218), 8 states have call successors, (189), 4 states have call predecessors, (189), 8 states have return successors, (189), 8 states have call predecessors, (189), 8 states have call successors, (189) [2024-12-02 08:29:42,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:29:42,780 INFO L93 Difference]: Finished difference Result 34257 states and 52946 transitions. [2024-12-02 08:29:42,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-12-02 08:29:42,781 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 11.473684210526315) internal successors, (218), 18 states have internal predecessors, (218), 8 states have call successors, (189), 4 states have call predecessors, (189), 8 states have return successors, (189), 8 states have call predecessors, (189), 8 states have call successors, (189) Word has length 413 [2024-12-02 08:29:42,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:29:42,845 INFO L225 Difference]: With dead ends: 34257 [2024-12-02 08:29:42,845 INFO L226 Difference]: Without dead ends: 28089 [2024-12-02 08:29:42,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 821 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 728 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=640, Invalid=1712, Unknown=0, NotChecked=0, Total=2352 [2024-12-02 08:29:42,862 INFO L435 NwaCegarLoop]: 800 mSDtfsCounter, 2879 mSDsluCounter, 6981 mSDsCounter, 0 mSdLazyCounter, 5006 mSolverCounterSat, 881 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3007 SdHoareTripleChecker+Valid, 7781 SdHoareTripleChecker+Invalid, 5887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 881 IncrementalHoareTripleChecker+Valid, 5006 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2024-12-02 08:29:42,862 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3007 Valid, 7781 Invalid, 5887 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [881 Valid, 5006 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2024-12-02 08:29:42,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28089 states. [2024-12-02 08:29:44,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28089 to 8837. [2024-12-02 08:29:44,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8837 states, 7048 states have (on average 1.4645289443813847) internal successors, (10322), 7112 states have internal predecessors, (10322), 1528 states have call successors, (1528), 260 states have call predecessors, (1528), 260 states have return successors, (1528), 1464 states have call predecessors, (1528), 1528 states have call successors, (1528) [2024-12-02 08:29:44,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8837 states to 8837 states and 13378 transitions. [2024-12-02 08:29:44,698 INFO L78 Accepts]: Start accepts. Automaton has 8837 states and 13378 transitions. Word has length 413 [2024-12-02 08:29:44,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:29:44,699 INFO L471 AbstractCegarLoop]: Abstraction has 8837 states and 13378 transitions. [2024-12-02 08:29:44,699 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 11.473684210526315) internal successors, (218), 18 states have internal predecessors, (218), 8 states have call successors, (189), 4 states have call predecessors, (189), 8 states have return successors, (189), 8 states have call predecessors, (189), 8 states have call successors, (189) [2024-12-02 08:29:44,699 INFO L276 IsEmpty]: Start isEmpty. Operand 8837 states and 13378 transitions. [2024-12-02 08:29:44,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 415 [2024-12-02 08:29:44,705 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:29:44,706 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:29:44,716 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 08:29:44,906 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:44,906 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:29:44,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:29:44,907 INFO L85 PathProgramCache]: Analyzing trace with hash -506963858, now seen corresponding path program 1 times [2024-12-02 08:29:44,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-02 08:29:44,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929486846] [2024-12-02 08:29:44,907 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:44,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 08:29:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-12-02 08:29:45,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [643513761] [2024-12-02 08:29:45,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:29:45,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:29:45,350 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:29:45,352 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 08:29:45,353 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-12-02 08:29:45,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:29:45,700 INFO L256 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-12-02 08:29:45,708 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:29:48,618 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 5856 proven. 402 refuted. 0 times theorem prover too weak. 1554 trivial. 0 not checked. [2024-12-02 08:29:48,618 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 08:29:54,187 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 (mod c_~var_1_24~0 256))) (let ((.cse10 (mod (* 255 c_~var_1_40~0) 256)) (.cse5 (mod c_~var_1_40~0 256)) (.cse13 (mod c_~var_1_34~0 4294967296)) (.cse12 (not (= (mod c_~var_1_62~0 4294967296) 0))) (.cse6 (< 127 .cse4)) (.cse2 (mod c_~var_1_19~0 4294967296)) (.cse3 (+ (mod c_~var_1_45~0 65536) 1))) (let ((.cse0 (or .cse12 (and (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (= v_z_44 128) (< 4294967295 v_z_44) (= v_z_44 .cse4))) (or .cse6 (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (< 4294967295 v_z_44) (= v_z_44 .cse4))))))) (.cse1 (< .cse5 .cse13)) (.cse7 (< c_~var_1_40~0 0)) (.cse8 (< 0 (+ c_~var_1_40~0 1))) (.cse9 (< .cse10 .cse13))) (and (or (and .cse0 (or .cse1 (and (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (= v_z_44 128) (= v_z_44 .cse4) (< .cse5 v_z_44))) (or (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (= v_z_44 .cse4) (< .cse5 v_z_44))) .cse6)))) .cse7) (or .cse8 (and .cse0 (or .cse9 (and (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (= v_z_44 128) (= v_z_44 .cse4) (< .cse10 v_z_44))) (or .cse6 (forall ((v_z_44 Int)) (or (< v_z_44 0) (< (mod (mod v_z_44 .cse2) 4294967296) .cse3) (= v_z_44 .cse4) (< .cse10 v_z_44)))))))) (or (< .cse4 128) (let ((.cse11 (or .cse12 (forall ((v_z_42 Int)) (or (< (mod (mod v_z_42 .cse2) 4294967296) .cse3) (< 4294967295 v_z_42) (= v_z_42 128) (< v_z_42 0)))))) (and (or (and (or .cse1 (forall ((v_z_42 Int)) (or (< (mod (mod v_z_42 .cse2) 4294967296) .cse3) (= v_z_42 128) (< v_z_42 0) (< .cse5 v_z_42)))) .cse11) .cse7) (or .cse8 (and (or .cse9 (forall ((v_z_42 Int)) (or (< (mod (mod v_z_42 .cse2) 4294967296) .cse3) (< .cse10 v_z_42) (= v_z_42 128) (< v_z_42 0)))) .cse11))))))))) is different from false [2024-12-02 08:30:01,829 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-12-02 08:30:01,829 WARN L249 Executor]: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-12-02 08:30:01,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-02 08:30:01,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929486846] [2024-12-02 08:30:01,830 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-12-02 08:30:01,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643513761] [2024-12-02 08:30:01,830 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-12-02 08:30:01,837 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-12-02 08:30:02,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 08:30:02,031 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:842) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:555) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:428) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:314) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:275) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 45 more [2024-12-02 08:30:02,035 INFO L158 Benchmark]: Toolchain (without parser) took 324952.16ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 116.1MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 236.9MB. Max. memory is 16.1GB. [2024-12-02 08:30:02,036 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 83.6MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:30:02,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 329.43ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 93.9MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 08:30:02,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.46ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 87.3MB in the end (delta: 6.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 08:30:02,036 INFO L158 Benchmark]: Boogie Preprocessor took 78.51ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 79.2MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 08:30:02,036 INFO L158 Benchmark]: RCFGBuilder took 857.30ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 80.7MB in the end (delta: -1.5MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. [2024-12-02 08:30:02,037 INFO L158 Benchmark]: TraceAbstraction took 323620.49ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 80.2MB in the beginning and 1.1GB in the end (delta: -1.1GB). Peak memory consumption was 203.9MB. Max. memory is 16.1GB. [2024-12-02 08:30:02,038 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 142.6MB. Free memory was 83.7MB in the beginning and 83.6MB in the end (delta: 33.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 329.43ms. Allocated memory is still 142.6MB. Free memory was 115.9MB in the beginning and 93.9MB in the end (delta: 22.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 61.46ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 87.3MB in the end (delta: 6.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 78.51ms. Allocated memory is still 142.6MB. Free memory was 87.3MB in the beginning and 79.2MB in the end (delta: 8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 857.30ms. Allocated memory is still 142.6MB. Free memory was 79.2MB in the beginning and 80.7MB in the end (delta: -1.5MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB. * TraceAbstraction took 323620.49ms. Allocated memory was 142.6MB in the beginning and 1.4GB in the end (delta: 1.3GB). Free memory was 80.2MB in the beginning and 1.1GB in the end (delta: -1.1GB). Peak memory consumption was 203.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. 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_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e3471f06dc12ad44598fd2961f3d0cb274ed30b5886ce0a764ca9d78e786b896 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 08:30:03,902 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 08:30:03,980 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2024-12-02 08:30:03,987 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 08:30:03,987 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 08:30:04,009 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 08:30:04,010 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 08:30:04,010 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 08:30:04,010 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 08:30:04,010 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 08:30:04,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-02 08:30:04,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-02 08:30:04,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 08:30:04,011 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 08:30:04,011 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 08:30:04,011 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 08:30:04,011 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-02 08:30:04,011 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 08:30:04,011 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 08:30:04,011 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 08:30:04,011 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-02 08:30:04,011 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-02 08:30:04,012 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-02 08:30:04,012 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-02 08:30:04,012 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-02 08:30:04,012 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-02 08:30:04,012 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 08:30:04,012 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 08:30:04,012 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 08:30:04,012 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 08:30:04,013 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-02 08:30:04,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:30:04,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:30:04,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:30:04,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:30:04,013 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 08:30:04,013 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 08:30:04,013 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-02 08:30:04,013 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-02 08:30:04,013 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:30:04,013 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 08:30:04,013 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-02 08:30:04,013 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-02 08:30:04,014 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-02 08:30:04,014 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-02 08:30:04,014 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-02 08:30:04,014 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-02 08:30:04,014 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-02 08:30:04,014 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-02 08:30:04,014 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-02 08:30:04,014 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_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e3471f06dc12ad44598fd2961f3d0cb274ed30b5886ce0a764ca9d78e786b896 [2024-12-02 08:30:04,245 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 08:30:04,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 08:30:04,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 08:30:04,256 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 08:30:04,257 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 08:30:04,258 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-12-02 08:30:06,970 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/data/96f4b5aac/bffc8a66a82642889f59a6b1c3eed0c9/FLAG7d0340b20 [2024-12-02 08:30:07,191 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 08:30:07,191 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-12-02 08:30:07,200 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/data/96f4b5aac/bffc8a66a82642889f59a6b1c3eed0c9/FLAG7d0340b20 [2024-12-02 08:30:07,522 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/data/96f4b5aac/bffc8a66a82642889f59a6b1c3eed0c9 [2024-12-02 08:30:07,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 08:30:07,525 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 08:30:07,525 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 08:30:07,526 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 08:30:07,528 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 08:30:07,529 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20b46b1b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07, skipping insertion in model container [2024-12-02 08:30:07,529 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 08:30:07,664 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_b1a97fc5-2822-463a-b6d0-2a451dc074d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i[916,929] [2024-12-02 08:30:07,750 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:30:07,764 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 08:30:07,774 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-95.i[916,929] [2024-12-02 08:30:07,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 08:30:07,848 INFO L204 MainTranslator]: Completed translation [2024-12-02 08:30:07,848 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07 WrapperNode [2024-12-02 08:30:07,848 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 08:30:07,849 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 08:30:07,849 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 08:30:07,849 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 08:30:07,853 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,899 INFO L138 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 421 [2024-12-02 08:30:07,899 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 08:30:07,900 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 08:30:07,900 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 08:30:07,900 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 08:30:07,907 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,907 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,913 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,929 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 08:30:07,929 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,929 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,945 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,948 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,968 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,970 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 08:30:07,976 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 08:30:07,976 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 08:30:07,977 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 08:30:07,977 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (1/1) ... [2024-12-02 08:30:07,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-02 08:30:07,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 08:30:08,006 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-02 08:30:08,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-02 08:30:08,029 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 08:30:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-02 08:30:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-12-02 08:30:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-12-02 08:30:08,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 08:30:08,030 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 08:30:08,121 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 08:30:08,122 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 08:30:36,072 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-12-02 08:30:36,072 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 08:30:36,085 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 08:30:36,085 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-02 08:30:36,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:30:36 BoogieIcfgContainer [2024-12-02 08:30:36,086 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 08:30:36,088 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-02 08:30:36,088 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-02 08:30:36,092 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-02 08:30:36,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:30:07" (1/3) ... [2024-12-02 08:30:36,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6526c557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:30:36, skipping insertion in model container [2024-12-02 08:30:36,093 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:30:07" (2/3) ... [2024-12-02 08:30:36,093 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6526c557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:30:36, skipping insertion in model container [2024-12-02 08:30:36,094 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:30:36" (3/3) ... [2024-12-02 08:30:36,095 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-95.i [2024-12-02 08:30:36,107 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-02 08:30:36,108 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-95.i that has 2 procedures, 187 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-02 08:30:36,156 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-02 08:30:36,165 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;@20ce564d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-02 08:30:36,165 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-02 08:30:36,169 INFO L276 IsEmpty]: Start isEmpty. Operand has 187 states, 121 states have (on average 1.5289256198347108) internal successors, (185), 122 states have internal predecessors, (185), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-12-02 08:30:36,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-12-02 08:30:36,188 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:36,189 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:30:36,189 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:36,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:36,195 INFO L85 PathProgramCache]: Analyzing trace with hash -1975282257, now seen corresponding path program 1 times [2024-12-02 08:30:36,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:30:36,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22504731] [2024-12-02 08:30:36,208 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:36,208 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:30:36,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:30:36,210 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:30:36,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-12-02 08:30:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:37,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-12-02 08:30:37,808 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:30:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 1852 proven. 0 refuted. 0 times theorem prover too weak. 5960 trivial. 0 not checked. [2024-12-02 08:30:37,870 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:30:37,871 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:30:37,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22504731] [2024-12-02 08:30:37,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22504731] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:37,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:37,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:30:37,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918113594] [2024-12-02 08:30:37,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:37,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-12-02 08:30:37,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:30:37,897 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-12-02 08:30:37,898 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:30:37,900 INFO L87 Difference]: Start difference. First operand has 187 states, 121 states have (on average 1.5289256198347108) internal successors, (185), 122 states have internal predecessors, (185), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) Second operand has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2024-12-02 08:30:37,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:37,939 INFO L93 Difference]: Finished difference Result 366 states and 677 transitions. [2024-12-02 08:30:37,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-12-02 08:30:37,940 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) Word has length 402 [2024-12-02 08:30:37,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:37,947 INFO L225 Difference]: With dead ends: 366 [2024-12-02 08:30:37,947 INFO L226 Difference]: Without dead ends: 182 [2024-12-02 08:30:37,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-12-02 08:30:37,953 INFO L435 NwaCegarLoop]: 301 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, 301 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:37,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-02 08:30:37,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-12-02 08:30:37,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2024-12-02 08:30:38,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 117 states have (on average 1.4957264957264957) internal successors, (175), 117 states have internal predecessors, (175), 63 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 63 states have call predecessors, (63), 63 states have call successors, (63) [2024-12-02 08:30:38,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 301 transitions. [2024-12-02 08:30:38,007 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 301 transitions. Word has length 402 [2024-12-02 08:30:38,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:38,008 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 301 transitions. [2024-12-02 08:30:38,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 47.0) internal successors, (94), 2 states have internal predecessors, (94), 2 states have call successors, (63), 2 states have call predecessors, (63), 2 states have return successors, (63), 2 states have call predecessors, (63), 2 states have call successors, (63) [2024-12-02 08:30:38,008 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 301 transitions. [2024-12-02 08:30:38,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-12-02 08:30:38,016 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:38,016 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:30:38,046 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-12-02 08:30:38,217 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:30:38,217 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:38,218 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:38,218 INFO L85 PathProgramCache]: Analyzing trace with hash 293251329, now seen corresponding path program 1 times [2024-12-02 08:30:38,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:30:38,219 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1482206818] [2024-12-02 08:30:38,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:38,219 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:30:38,219 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:30:38,221 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:30:38,222 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-12-02 08:30:39,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:39,815 INFO L256 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 08:30:39,823 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:30:39,930 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-12-02 08:30:39,930 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:30:39,930 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:30:39,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1482206818] [2024-12-02 08:30:39,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1482206818] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:39,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:39,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-02 08:30:39,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032507823] [2024-12-02 08:30:39,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:39,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:30:39,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:30:39,933 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:30:39,933 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:30:39,934 INFO L87 Difference]: Start difference. First operand 182 states and 301 transitions. Second operand has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:30:40,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:40,254 INFO L93 Difference]: Finished difference Result 409 states and 673 transitions. [2024-12-02 08:30:40,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:30:40,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 402 [2024-12-02 08:30:40,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:40,260 INFO L225 Difference]: With dead ends: 409 [2024-12-02 08:30:40,261 INFO L226 Difference]: Without dead ends: 230 [2024-12-02 08:30:40,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 401 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:30:40,263 INFO L435 NwaCegarLoop]: 357 mSDtfsCounter, 185 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:40,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 539 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-12-02 08:30:40,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-12-02 08:30:40,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 229. [2024-12-02 08:30:40,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 136 states have (on average 1.4191176470588236) internal successors, (193), 137 states have internal predecessors, (193), 90 states have call successors, (90), 2 states have call predecessors, (90), 2 states have return successors, (90), 89 states have call predecessors, (90), 90 states have call successors, (90) [2024-12-02 08:30:40,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 373 transitions. [2024-12-02 08:30:40,300 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 373 transitions. Word has length 402 [2024-12-02 08:30:40,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:40,302 INFO L471 AbstractCegarLoop]: Abstraction has 229 states and 373 transitions. [2024-12-02 08:30:40,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.0) internal successors, (90), 3 states have internal predecessors, (90), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:30:40,302 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 373 transitions. [2024-12-02 08:30:40,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-12-02 08:30:40,306 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:40,306 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:30:40,342 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-12-02 08:30:40,506 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:30:40,506 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:40,507 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:40,507 INFO L85 PathProgramCache]: Analyzing trace with hash -269613671, now seen corresponding path program 1 times [2024-12-02 08:30:40,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:30:40,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2060886673] [2024-12-02 08:30:40,508 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:40,508 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:30:40,509 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:30:40,510 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:30:40,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-12-02 08:30:41,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:42,028 INFO L256 TraceCheckSpWp]: Trace formula consists of 650 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:30:42,034 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:30:42,488 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-12-02 08:30:42,489 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:30:42,489 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:30:42,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2060886673] [2024-12-02 08:30:42,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2060886673] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:42,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:42,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:30:42,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170553487] [2024-12-02 08:30:42,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:42,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:30:42,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:30:42,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:30:42,492 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:30:42,492 INFO L87 Difference]: Start difference. First operand 229 states and 373 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:30:43,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:43,350 INFO L93 Difference]: Finished difference Result 614 states and 1005 transitions. [2024-12-02 08:30:43,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 08:30:43,351 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 403 [2024-12-02 08:30:43,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:43,358 INFO L225 Difference]: With dead ends: 614 [2024-12-02 08:30:43,358 INFO L226 Difference]: Without dead ends: 431 [2024-12-02 08:30:43,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 402 GetRequests, 400 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:30:43,360 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 313 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 1066 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:43,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 1066 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-02 08:30:43,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states. [2024-12-02 08:30:43,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 425. [2024-12-02 08:30:43,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 285 states have (on average 1.5052631578947369) internal successors, (429), 288 states have internal predecessors, (429), 134 states have call successors, (134), 5 states have call predecessors, (134), 5 states have return successors, (134), 131 states have call predecessors, (134), 134 states have call successors, (134) [2024-12-02 08:30:43,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 697 transitions. [2024-12-02 08:30:43,420 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 697 transitions. Word has length 403 [2024-12-02 08:30:43,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:43,421 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 697 transitions. [2024-12-02 08:30:43,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:30:43,421 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 697 transitions. [2024-12-02 08:30:43,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-12-02 08:30:43,424 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:43,424 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:30:43,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-12-02 08:30:43,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:30:43,625 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:43,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:43,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1234893863, now seen corresponding path program 1 times [2024-12-02 08:30:43,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:30:43,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1087428333] [2024-12-02 08:30:43,627 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:43,627 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:30:43,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:30:43,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:30:43,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-12-02 08:30:45,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:45,157 INFO L256 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:30:45,161 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:30:45,443 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-12-02 08:30:45,443 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:30:45,443 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:30:45,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1087428333] [2024-12-02 08:30:45,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1087428333] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:45,443 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:45,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-02 08:30:45,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094706068] [2024-12-02 08:30:45,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:45,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-02 08:30:45,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:30:45,445 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 08:30:45,445 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 08:30:45,445 INFO L87 Difference]: Start difference. First operand 425 states and 697 transitions. Second operand has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:30:45,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:30:45,962 INFO L93 Difference]: Finished difference Result 923 states and 1505 transitions. [2024-12-02 08:30:45,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 08:30:45,963 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 403 [2024-12-02 08:30:45,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:30:45,969 INFO L225 Difference]: With dead ends: 923 [2024-12-02 08:30:45,969 INFO L226 Difference]: Without dead ends: 544 [2024-12-02 08:30:45,970 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 404 GetRequests, 401 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-02 08:30:45,971 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 536 mSDsluCounter, 720 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 1091 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-12-02 08:30:45,971 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 1091 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-12-02 08:30:45,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2024-12-02 08:30:46,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 454. [2024-12-02 08:30:46,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 454 states, 312 states have (on average 1.5032051282051282) internal successors, (469), 315 states have internal predecessors, (469), 134 states have call successors, (134), 7 states have call predecessors, (134), 7 states have return successors, (134), 131 states have call predecessors, (134), 134 states have call successors, (134) [2024-12-02 08:30:46,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 737 transitions. [2024-12-02 08:30:46,014 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 737 transitions. Word has length 403 [2024-12-02 08:30:46,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:30:46,015 INFO L471 AbstractCegarLoop]: Abstraction has 454 states and 737 transitions. [2024-12-02 08:30:46,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.75) internal successors, (91), 4 states have internal predecessors, (91), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:30:46,015 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 737 transitions. [2024-12-02 08:30:46,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-12-02 08:30:46,018 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:30:46,018 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:30:46,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-12-02 08:30:46,219 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:30:46,219 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:30:46,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:30:46,219 INFO L85 PathProgramCache]: Analyzing trace with hash -1468875976, now seen corresponding path program 1 times [2024-12-02 08:30:46,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:30:46,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [435348622] [2024-12-02 08:30:46,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:30:46,220 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:30:46,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:30:46,222 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:30:46,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-12-02 08:30:47,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:30:47,742 INFO L256 TraceCheckSpWp]: Trace formula consists of 652 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 08:30:47,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:30:59,390 INFO L134 CoverageAnalysis]: Checked inductivity of 7812 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7812 trivial. 0 not checked. [2024-12-02 08:30:59,390 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-02 08:30:59,390 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-02 08:30:59,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [435348622] [2024-12-02 08:30:59,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [435348622] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-02 08:30:59,390 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-02 08:30:59,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-02 08:30:59,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046654073] [2024-12-02 08:30:59,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-02 08:30:59,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-02 08:30:59,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-02 08:30:59,391 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 08:30:59,391 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:30:59,392 INFO L87 Difference]: Start difference. First operand 454 states and 737 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:31:03,924 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:08,170 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:12,056 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.29s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:17,207 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:21,408 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.20s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:25,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:31,249 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.19s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:35,254 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:39,874 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.18s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:44,124 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:47,638 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:53,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.16s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:56,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.70s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-12-02 08:31:56,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 08:31:56,907 INFO L93 Difference]: Finished difference Result 1262 states and 2059 transitions. [2024-12-02 08:31:56,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 08:31:56,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) Word has length 404 [2024-12-02 08:31:56,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-02 08:31:56,977 INFO L225 Difference]: With dead ends: 1262 [2024-12-02 08:31:56,977 INFO L226 Difference]: Without dead ends: 858 [2024-12-02 08:31:56,979 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 403 GetRequests, 402 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 08:31:56,979 INFO L435 NwaCegarLoop]: 262 mSDtfsCounter, 87 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 0 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 56.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.5s IncrementalHoareTripleChecker+Time [2024-12-02 08:31:56,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 515 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 78 Invalid, 10 Unknown, 0 Unchecked, 57.5s Time] [2024-12-02 08:31:56,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2024-12-02 08:31:57,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 856. [2024-12-02 08:31:57,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 856 states, 601 states have (on average 1.5174708818635607) internal successors, (912), 606 states have internal predecessors, (912), 241 states have call successors, (241), 13 states have call predecessors, (241), 13 states have return successors, (241), 236 states have call predecessors, (241), 241 states have call successors, (241) [2024-12-02 08:31:57,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 856 states to 856 states and 1394 transitions. [2024-12-02 08:31:57,035 INFO L78 Accepts]: Start accepts. Automaton has 856 states and 1394 transitions. Word has length 404 [2024-12-02 08:31:57,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-02 08:31:57,036 INFO L471 AbstractCegarLoop]: Abstraction has 856 states and 1394 transitions. [2024-12-02 08:31:57,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 2 states have internal predecessors, (92), 1 states have call successors, (63), 1 states have call predecessors, (63), 1 states have return successors, (63), 1 states have call predecessors, (63), 1 states have call successors, (63) [2024-12-02 08:31:57,036 INFO L276 IsEmpty]: Start isEmpty. Operand 856 states and 1394 transitions. [2024-12-02 08:31:57,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-12-02 08:31:57,038 INFO L210 NwaCegarLoop]: Found error trace [2024-12-02 08:31:57,038 INFO L218 NwaCegarLoop]: trace histogram [63, 63, 63, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 08:31:57,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-12-02 08:31:57,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:31:57,239 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-02 08:31:57,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 08:31:57,239 INFO L85 PathProgramCache]: Analyzing trace with hash 306131386, now seen corresponding path program 1 times [2024-12-02 08:31:57,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-02 08:31:57,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1861386559] [2024-12-02 08:31:57,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 08:31:57,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-12-02 08:31:57,240 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat [2024-12-02 08:31:57,241 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-12-02 08:31:57,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1a97fc5-2822-463a-b6d0-2a451dc074d5/bin/uautomizer-verify-84ZbGMXZE1/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-12-02 08:31:58,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 08:31:58,783 INFO L256 TraceCheckSpWp]: Trace formula consists of 651 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-12-02 08:31:58,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 08:33:02,201 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:33:14,176 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:33:22,394 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:33:30,607 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:33:38,842 WARN L286 SmtUtils]: Spent 8.23s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:33:47,049 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:33:59,467 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:34:07,685 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:34:12,769 WARN L286 SmtUtils]: Spent 5.08s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:34:20,991 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:34:29,201 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:34:37,406 WARN L286 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:34:44,374 WARN L286 SmtUtils]: Spent 6.97s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:34:51,861 WARN L286 SmtUtils]: Spent 7.49s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:35:00,078 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:35:08,301 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:35:12,362 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_6~0)) (.cse1 ((_ zero_extend 24) c_~var_1_4~0)) (.cse5 ((_ zero_extend 24) c_~var_1_5~0))) (and (bvsle .cse0 (_ bv63 32)) (= c_~var_1_15~0 (bvadd .cse1 .cse0)) (let ((.cse3 ((_ sign_extend 24) c_~var_1_9~0))) (let ((.cse2 (bvslt (_ bv5 32) .cse3))) (or (and (not .cse2) (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse0 .cse3)))) (and (= ((_ extract 7 0) (bvadd (_ bv5 32) .cse0)) c_~var_1_7~0) .cse2)))) (not (= (_ bv0 8) c_~var_1_8~0)) (= ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 259.0 4.0))) c_~var_1_12~0) (let ((.cse4 (fp.lt c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (or (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_13~0)) (not .cse4)) (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 (fp.neg c_~var_1_13~0))) .cse4))) (= c_~last_1_var_1_11~0 (_ bv0 16)) (bvsle .cse5 .cse1) (= (_ bv0 16) c_~var_1_11~0) (bvsge .cse5 (_ bv63 32)) (bvsle .cse5 (_ bv127 32)) (= c_~last_1_var_1_15~0 (_ bv32 32)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2024-12-02 08:35:16,417 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ zero_extend 24) c_~var_1_6~0)) (.cse1 ((_ zero_extend 24) c_~var_1_4~0)) (.cse5 ((_ zero_extend 24) c_~var_1_5~0))) (and (bvsle .cse0 (_ bv63 32)) (= c_~var_1_15~0 (bvadd .cse1 .cse0)) (let ((.cse3 ((_ sign_extend 24) c_~var_1_9~0))) (let ((.cse2 (bvslt (_ bv5 32) .cse3))) (or (and (not .cse2) (= c_~var_1_7~0 ((_ extract 7 0) (bvadd .cse0 .cse3)))) (and (= ((_ extract 7 0) (bvadd (_ bv5 32) .cse0)) c_~var_1_7~0) .cse2)))) (not (= (_ bv0 8) c_~var_1_8~0)) (= ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 259.0 4.0))) c_~var_1_12~0) (let ((.cse4 (fp.lt c_~var_1_13~0 ((_ to_fp 11 53) c_currentRoundingMode (_ bv0 32))))) (or (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 c_~var_1_13~0)) (not .cse4)) (and (fp.eq c_~var_1_2~0 (fp.div c_currentRoundingMode c_~var_1_3~0 (fp.neg c_~var_1_13~0))) .cse4))) (= c_~last_1_var_1_11~0 (_ bv0 16)) (bvsle .cse5 .cse1) (= (_ bv0 16) c_~var_1_11~0) (bvsge .cse5 (_ bv63 32)) (bvsle .cse5 (_ bv127 32)) (= c_~last_1_var_1_15~0 (_ bv32 32)) (= c_currentRoundingMode roundNearestTiesToEven))) is different from true [2024-12-02 08:35:24,636 WARN L286 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:35:32,845 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:35:39,545 WARN L286 SmtUtils]: Spent 6.70s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:35:52,183 WARN L286 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:36:00,901 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:36:19,609 WARN L286 SmtUtils]: Spent 8.22s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:36:25,265 WARN L286 SmtUtils]: Spent 5.66s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:36:33,477 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:36:39,534 WARN L286 SmtUtils]: Spent 6.06s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:36:50,720 WARN L286 SmtUtils]: Spent 7.54s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:37:07,574 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:37:14,880 WARN L286 SmtUtils]: Spent 7.29s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:37:23,090 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:37:31,252 WARN L286 SmtUtils]: Spent 8.16s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:37:39,053 WARN L286 SmtUtils]: Spent 7.80s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:37:44,374 WARN L286 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:37:51,523 WARN L286 SmtUtils]: Spent 7.15s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:37:59,219 WARN L286 SmtUtils]: Spent 7.70s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:38:07,415 WARN L286 SmtUtils]: Spent 8.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:38:14,187 WARN L286 SmtUtils]: Spent 6.77s on a formula simplification that was a NOOP. DAG size: 4 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:38:21,017 WARN L286 SmtUtils]: Spent 6.83s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:38:32,175 WARN L286 SmtUtils]: Spent 8.21s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-12-02 08:38:37,903 WARN L286 SmtUtils]: Spent 5.73s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify)