./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/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_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/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 64bit --witnessprinter.graph.data.programhash d34a336c538fc3840e4ea3ff0e6a49a015ced8c6fe61188192176428c4598a52 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:16:33,519 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:16:33,572 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-12-01 23:16:33,576 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:16:33,576 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:16:33,596 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:16:33,597 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:16:33,597 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:16:33,598 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:16:33,598 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:16:33,598 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:16:33,598 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:16:33,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:16:33,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:16:33,599 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:16:33,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:16:33,599 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:16:33,599 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 23:16:33,599 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:16:33,599 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:16:33,599 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:16:33,599 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:16:33,599 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:16:33,600 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:16:33,600 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:16:33,600 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:16:33,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:16:33,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:16:33,600 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:16:33,600 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:33,600 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:16:33,600 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:16:33,600 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:16:33,601 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:16:33,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:33,601 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:16:33,601 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:16:33,601 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:16:33,601 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:16:33,601 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 23:16:33,601 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 23:16:33,601 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:16:33,601 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:16:33,602 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:16:33,602 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:16:33,602 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_757ee817-7f5c-4e22-a225-75320d927a27/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d34a336c538fc3840e4ea3ff0e6a49a015ced8c6fe61188192176428c4598a52 [2024-12-01 23:16:33,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:16:33,816 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:16:33,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:16:33,821 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:16:33,821 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:16:33,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c [2024-12-01 23:16:36,445 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/data/3f888fd82/8dfa69656ee842ef941db55074deb2d3/FLAG1c3c42bf2 [2024-12-01 23:16:36,698 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:16:36,698 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c [2024-12-01 23:16:36,707 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/data/3f888fd82/8dfa69656ee842ef941db55074deb2d3/FLAG1c3c42bf2 [2024-12-01 23:16:36,718 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/data/3f888fd82/8dfa69656ee842ef941db55074deb2d3 [2024-12-01 23:16:36,720 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:16:36,722 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:16:36,723 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:16:36,723 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:16:36,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:16:36,727 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:16:36" (1/1) ... [2024-12-01 23:16:36,728 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39046403 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:36, skipping insertion in model container [2024-12-01 23:16:36,728 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:16:36" (1/1) ... [2024-12-01 23:16:36,761 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:16:36,910 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_757ee817-7f5c-4e22-a225-75320d927a27/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c[1246,1259] [2024-12-01 23:16:37,104 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:16:37,114 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:16:37,121 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c[1246,1259] [2024-12-01 23:16:37,200 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:16:37,213 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:16:37,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37 WrapperNode [2024-12-01 23:16:37,214 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:16:37,215 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:16:37,215 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:16:37,215 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:16:37,220 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,243 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,431 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1933 [2024-12-01 23:16:37,431 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:16:37,432 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:16:37,432 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:16:37,432 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:16:37,442 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,442 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,474 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,531 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]. [2024-12-01 23:16:37,531 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,532 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,581 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,588 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,599 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,615 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,623 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,659 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:16:37,660 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:16:37,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:16:37,660 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:16:37,661 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (1/1) ... [2024-12-01 23:16:37,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:37,678 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:16:37,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:16:37,693 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:16:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:16:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 23:16:37,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:16:37,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:16:37,950 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:16:37,952 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:16:39,947 INFO L? ?]: Removed 1109 outVars from TransFormulas that were not future-live. [2024-12-01 23:16:39,948 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:16:39,966 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:16:39,967 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-01 23:16:39,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:39 BoogieIcfgContainer [2024-12-01 23:16:39,967 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:16:39,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:16:39,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:16:39,973 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:16:39,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:16:36" (1/3) ... [2024-12-01 23:16:39,974 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7e5a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:16:39, skipping insertion in model container [2024-12-01 23:16:39,974 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:37" (2/3) ... [2024-12-01 23:16:39,975 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e7e5a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:16:39, skipping insertion in model container [2024-12-01 23:16:39,975 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:39" (3/3) ... [2024-12-01 23:16:39,976 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.v_FIFO.c [2024-12-01 23:16:39,987 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:16:39,988 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.v_FIFO.c that has 1 procedures, 538 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 23:16:40,039 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:16:40,049 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;@3ea4eb82, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:16:40,049 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 23:16:40,054 INFO L276 IsEmpty]: Start isEmpty. Operand has 538 states, 536 states have (on average 1.498134328358209) internal successors, (803), 537 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:40,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-12-01 23:16:40,060 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:40,060 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:40,061 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:40,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:40,065 INFO L85 PathProgramCache]: Analyzing trace with hash -2060732644, now seen corresponding path program 1 times [2024-12-01 23:16:40,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:40,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362035334] [2024-12-01 23:16:40,071 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:40,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:40,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:40,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:40,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362035334] [2024-12-01 23:16:40,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362035334] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:40,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:40,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:16:40,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703949734] [2024-12-01 23:16:40,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:40,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:16:40,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:40,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:16:40,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:16:40,886 INFO L87 Difference]: Start difference. First operand has 538 states, 536 states have (on average 1.498134328358209) internal successors, (803), 537 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:40,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:40,991 INFO L93 Difference]: Finished difference Result 1013 states and 1515 transitions. [2024-12-01 23:16:40,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:16:40,993 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-12-01 23:16:40,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:41,004 INFO L225 Difference]: With dead ends: 1013 [2024-12-01 23:16:41,004 INFO L226 Difference]: Without dead ends: 537 [2024-12-01 23:16:41,008 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:16:41,010 INFO L435 NwaCegarLoop]: 797 mSDtfsCounter, 0 mSDsluCounter, 1588 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:41,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2385 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:16:41,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-12-01 23:16:41,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2024-12-01 23:16:41,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.4944029850746268) internal successors, (801), 536 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:41,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 801 transitions. [2024-12-01 23:16:41,062 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 801 transitions. Word has length 69 [2024-12-01 23:16:41,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:41,063 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 801 transitions. [2024-12-01 23:16:41,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:41,064 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 801 transitions. [2024-12-01 23:16:41,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-12-01 23:16:41,065 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:41,065 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:41,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 23:16:41,066 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:41,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:41,067 INFO L85 PathProgramCache]: Analyzing trace with hash 543493045, now seen corresponding path program 1 times [2024-12-01 23:16:41,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:41,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187143231] [2024-12-01 23:16:41,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:41,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:41,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:41,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:41,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:41,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187143231] [2024-12-01 23:16:41,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1187143231] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:41,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:41,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:16:41,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802915994] [2024-12-01 23:16:41,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:41,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:16:41,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:41,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:16:41,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:16:41,326 INFO L87 Difference]: Start difference. First operand 537 states and 801 transitions. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:41,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:41,372 INFO L93 Difference]: Finished difference Result 1014 states and 1513 transitions. [2024-12-01 23:16:41,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:16:41,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-12-01 23:16:41,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:41,376 INFO L225 Difference]: With dead ends: 1014 [2024-12-01 23:16:41,376 INFO L226 Difference]: Without dead ends: 539 [2024-12-01 23:16:41,377 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:16:41,378 INFO L435 NwaCegarLoop]: 797 mSDtfsCounter, 0 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2381 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:41,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2381 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:16:41,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 539 states. [2024-12-01 23:16:41,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 539 to 539. [2024-12-01 23:16:41,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 538 states have (on average 1.4925650557620818) internal successors, (803), 538 states have internal predecessors, (803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:41,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 803 transitions. [2024-12-01 23:16:41,396 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 803 transitions. Word has length 70 [2024-12-01 23:16:41,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:41,396 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 803 transitions. [2024-12-01 23:16:41,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:41,397 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 803 transitions. [2024-12-01 23:16:41,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-12-01 23:16:41,398 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:41,399 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:41,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 23:16:41,399 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:41,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:41,400 INFO L85 PathProgramCache]: Analyzing trace with hash -1429550315, now seen corresponding path program 1 times [2024-12-01 23:16:41,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:41,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509547838] [2024-12-01 23:16:41,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:41,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:41,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:41,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:41,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:41,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509547838] [2024-12-01 23:16:41,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509547838] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:41,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:41,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:16:41,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786098316] [2024-12-01 23:16:41,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:41,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:16:41,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:41,988 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:16:41,988 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:16:41,989 INFO L87 Difference]: Start difference. First operand 539 states and 803 transitions. Second operand has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:42,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:42,058 INFO L93 Difference]: Finished difference Result 1014 states and 1512 transitions. [2024-12-01 23:16:42,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:16:42,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-12-01 23:16:42,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:42,061 INFO L225 Difference]: With dead ends: 1014 [2024-12-01 23:16:42,061 INFO L226 Difference]: Without dead ends: 537 [2024-12-01 23:16:42,062 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:16:42,062 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 736 mSDsluCounter, 786 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 736 SdHoareTripleChecker+Valid, 1573 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:42,063 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [736 Valid, 1573 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-12-01 23:16:42,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-12-01 23:16:42,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2024-12-01 23:16:42,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 537 states, 536 states have (on average 1.4906716417910448) internal successors, (799), 536 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:42,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 799 transitions. [2024-12-01 23:16:42,076 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 799 transitions. Word has length 71 [2024-12-01 23:16:42,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:42,076 INFO L471 AbstractCegarLoop]: Abstraction has 537 states and 799 transitions. [2024-12-01 23:16:42,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.75) internal successors, (71), 4 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:42,077 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 799 transitions. [2024-12-01 23:16:42,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-12-01 23:16:42,078 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:42,078 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:42,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 23:16:42,079 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:42,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:42,079 INFO L85 PathProgramCache]: Analyzing trace with hash 198158712, now seen corresponding path program 1 times [2024-12-01 23:16:42,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:42,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928224960] [2024-12-01 23:16:42,080 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:42,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:43,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:43,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928224960] [2024-12-01 23:16:43,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928224960] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:43,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:43,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:16:43,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872228539] [2024-12-01 23:16:43,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:43,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:16:43,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:43,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:16:43,190 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:16:43,191 INFO L87 Difference]: Start difference. First operand 537 states and 799 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:43,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:43,354 INFO L93 Difference]: Finished difference Result 1143 states and 1697 transitions. [2024-12-01 23:16:43,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:16:43,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 72 [2024-12-01 23:16:43,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:43,357 INFO L225 Difference]: With dead ends: 1143 [2024-12-01 23:16:43,358 INFO L226 Difference]: Without dead ends: 668 [2024-12-01 23:16:43,358 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:16:43,359 INFO L435 NwaCegarLoop]: 777 mSDtfsCounter, 1141 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1141 SdHoareTripleChecker+Valid, 2328 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:43,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1141 Valid, 2328 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:16:43,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 668 states. [2024-12-01 23:16:43,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 668 to 543. [2024-12-01 23:16:43,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 542 states have (on average 1.488929889298893) internal successors, (807), 542 states have internal predecessors, (807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:43,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 807 transitions. [2024-12-01 23:16:43,374 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 807 transitions. Word has length 72 [2024-12-01 23:16:43,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:43,374 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 807 transitions. [2024-12-01 23:16:43,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:43,375 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 807 transitions. [2024-12-01 23:16:43,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-12-01 23:16:43,376 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:43,376 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:43,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 23:16:43,376 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:43,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:43,377 INFO L85 PathProgramCache]: Analyzing trace with hash -652779274, now seen corresponding path program 1 times [2024-12-01 23:16:43,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:43,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596143735] [2024-12-01 23:16:43,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:43,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:43,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:43,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:43,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:43,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596143735] [2024-12-01 23:16:43,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596143735] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:43,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:43,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:16:43,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622193132] [2024-12-01 23:16:43,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:43,683 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:16:43,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:43,683 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:16:43,683 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:16:43,684 INFO L87 Difference]: Start difference. First operand 543 states and 807 transitions. Second operand has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:44,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:44,298 INFO L93 Difference]: Finished difference Result 1411 states and 2100 transitions. [2024-12-01 23:16:44,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-12-01 23:16:44,298 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 73 [2024-12-01 23:16:44,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:44,301 INFO L225 Difference]: With dead ends: 1411 [2024-12-01 23:16:44,302 INFO L226 Difference]: Without dead ends: 547 [2024-12-01 23:16:44,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-12-01 23:16:44,303 INFO L435 NwaCegarLoop]: 756 mSDtfsCounter, 509 mSDsluCounter, 2825 mSDsCounter, 0 mSdLazyCounter, 457 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 3581 SdHoareTripleChecker+Invalid, 498 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 457 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:44,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 3581 Invalid, 498 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 457 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-12-01 23:16:44,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2024-12-01 23:16:44,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 545. [2024-12-01 23:16:44,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 544 states have (on average 1.4871323529411764) internal successors, (809), 544 states have internal predecessors, (809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:44,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 809 transitions. [2024-12-01 23:16:44,319 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 809 transitions. Word has length 73 [2024-12-01 23:16:44,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:44,319 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 809 transitions. [2024-12-01 23:16:44,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.166666666666666) internal successors, (73), 6 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:44,320 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 809 transitions. [2024-12-01 23:16:44,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-01 23:16:44,320 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:44,321 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:44,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 23:16:44,321 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:44,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:44,321 INFO L85 PathProgramCache]: Analyzing trace with hash -272755781, now seen corresponding path program 1 times [2024-12-01 23:16:44,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:44,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506102825] [2024-12-01 23:16:44,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:44,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:44,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:45,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:45,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:45,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506102825] [2024-12-01 23:16:45,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506102825] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:45,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:45,577 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-12-01 23:16:45,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344794802] [2024-12-01 23:16:45,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:45,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-12-01 23:16:45,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:45,578 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-01 23:16:45,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-12-01 23:16:45,578 INFO L87 Difference]: Start difference. First operand 545 states and 809 transitions. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:45,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:45,800 INFO L93 Difference]: Finished difference Result 1238 states and 1828 transitions. [2024-12-01 23:16:45,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-12-01 23:16:45,801 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-12-01 23:16:45,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:45,804 INFO L225 Difference]: With dead ends: 1238 [2024-12-01 23:16:45,804 INFO L226 Difference]: Without dead ends: 761 [2024-12-01 23:16:45,805 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-12-01 23:16:45,805 INFO L435 NwaCegarLoop]: 779 mSDtfsCounter, 1479 mSDsluCounter, 2616 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1479 SdHoareTripleChecker+Valid, 3395 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:45,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1479 Valid, 3395 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:16:45,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 761 states. [2024-12-01 23:16:45,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 761 to 553. [2024-12-01 23:16:45,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 552 states have (on average 1.483695652173913) internal successors, (819), 552 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:45,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 819 transitions. [2024-12-01 23:16:45,818 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 819 transitions. Word has length 74 [2024-12-01 23:16:45,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:45,818 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 819 transitions. [2024-12-01 23:16:45,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:45,819 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 819 transitions. [2024-12-01 23:16:45,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-12-01 23:16:45,819 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:45,819 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:45,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 23:16:45,820 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:45,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:45,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1679795681, now seen corresponding path program 1 times [2024-12-01 23:16:45,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:45,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427451903] [2024-12-01 23:16:45,820 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:45,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:45,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:46,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:46,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:46,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427451903] [2024-12-01 23:16:46,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427451903] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:46,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:46,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-12-01 23:16:46,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16039362] [2024-12-01 23:16:46,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:46,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-12-01 23:16:46,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:46,125 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-01 23:16:46,125 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:16:46,125 INFO L87 Difference]: Start difference. First operand 553 states and 819 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:46,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:46,236 INFO L93 Difference]: Finished difference Result 1167 states and 1728 transitions. [2024-12-01 23:16:46,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-01 23:16:46,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2024-12-01 23:16:46,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:46,239 INFO L225 Difference]: With dead ends: 1167 [2024-12-01 23:16:46,239 INFO L226 Difference]: Without dead ends: 690 [2024-12-01 23:16:46,240 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-12-01 23:16:46,240 INFO L435 NwaCegarLoop]: 784 mSDtfsCounter, 1174 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1174 SdHoareTripleChecker+Valid, 2350 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:46,241 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1174 Valid, 2350 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:16:46,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 690 states. [2024-12-01 23:16:46,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 690 to 554. [2024-12-01 23:16:46,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 553 states have (on average 1.481012658227848) internal successors, (819), 553 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:46,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 819 transitions. [2024-12-01 23:16:46,256 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 819 transitions. Word has length 74 [2024-12-01 23:16:46,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:46,256 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 819 transitions. [2024-12-01 23:16:46,257 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:46,257 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 819 transitions. [2024-12-01 23:16:46,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-01 23:16:46,257 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:46,257 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:46,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 23:16:46,258 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:46,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:46,258 INFO L85 PathProgramCache]: Analyzing trace with hash 446877345, now seen corresponding path program 1 times [2024-12-01 23:16:46,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:46,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327268647] [2024-12-01 23:16:46,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:46,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:46,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:47,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:47,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:16:47,314 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327268647] [2024-12-01 23:16:47,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327268647] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:47,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:47,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-12-01 23:16:47,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730418448] [2024-12-01 23:16:47,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:47,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-12-01 23:16:47,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:16:47,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-12-01 23:16:47,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-12-01 23:16:47,316 INFO L87 Difference]: Start difference. First operand 554 states and 819 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:47,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:47,777 INFO L93 Difference]: Finished difference Result 1210 states and 1790 transitions. [2024-12-01 23:16:47,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-12-01 23:16:47,778 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 75 [2024-12-01 23:16:47,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:47,781 INFO L225 Difference]: With dead ends: 1210 [2024-12-01 23:16:47,781 INFO L226 Difference]: Without dead ends: 733 [2024-12-01 23:16:47,782 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=300, Unknown=0, NotChecked=0, Total=380 [2024-12-01 23:16:47,783 INFO L435 NwaCegarLoop]: 771 mSDtfsCounter, 1279 mSDsluCounter, 5588 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1279 SdHoareTripleChecker+Valid, 6359 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:47,783 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1279 Valid, 6359 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-12-01 23:16:47,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2024-12-01 23:16:47,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 599. [2024-12-01 23:16:47,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 599 states, 598 states have (on average 1.4816053511705685) internal successors, (886), 598 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:47,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 886 transitions. [2024-12-01 23:16:47,800 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 886 transitions. Word has length 75 [2024-12-01 23:16:47,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:47,800 INFO L471 AbstractCegarLoop]: Abstraction has 599 states and 886 transitions. [2024-12-01 23:16:47,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:47,801 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 886 transitions. [2024-12-01 23:16:47,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-12-01 23:16:47,801 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:47,801 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:47,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 23:16:47,802 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:47,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:47,802 INFO L85 PathProgramCache]: Analyzing trace with hash 1510998010, now seen corresponding path program 1 times [2024-12-01 23:16:47,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:16:47,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121735287] [2024-12-01 23:16:47,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:47,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:16:47,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:16:47,927 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-01 23:16:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-01 23:16:48,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-12-01 23:16:48,092 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-12-01 23:16:48,092 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-01 23:16:48,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 23:16:48,097 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:48,151 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 23:16:48,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:16:48 BoogieIcfgContainer [2024-12-01 23:16:48,154 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 23:16:48,155 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 23:16:48,155 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 23:16:48,155 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 23:16:48,156 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:39" (3/4) ... [2024-12-01 23:16:48,159 INFO L149 WitnessPrinter]: No result that supports witness generation found [2024-12-01 23:16:48,160 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 23:16:48,161 INFO L158 Benchmark]: Toolchain (without parser) took 11439.13ms. Allocated memory was 142.6MB in the beginning and 478.2MB in the end (delta: 335.5MB). Free memory was 116.4MB in the beginning and 162.7MB in the end (delta: -46.3MB). Peak memory consumption was 289.0MB. Max. memory is 16.1GB. [2024-12-01 23:16:48,161 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:16:48,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.35ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 79.5MB in the end (delta: 36.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-01 23:16:48,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 216.99ms. Allocated memory is still 142.6MB. Free memory was 79.5MB in the beginning and 82.6MB in the end (delta: -3.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. [2024-12-01 23:16:48,162 INFO L158 Benchmark]: Boogie Preprocessor took 227.35ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 57.9MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-01 23:16:48,162 INFO L158 Benchmark]: RCFGBuilder took 2307.29ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 57.9MB in the beginning and 231.0MB in the end (delta: -173.1MB). Peak memory consumption was 145.9MB. Max. memory is 16.1GB. [2024-12-01 23:16:48,163 INFO L158 Benchmark]: TraceAbstraction took 8185.24ms. Allocated memory was 327.2MB in the beginning and 478.2MB in the end (delta: 151.0MB). Free memory was 231.0MB in the beginning and 162.7MB in the end (delta: 68.3MB). Peak memory consumption was 217.8MB. Max. memory is 16.1GB. [2024-12-01 23:16:48,163 INFO L158 Benchmark]: Witness Printer took 5.22ms. Allocated memory is still 478.2MB. Free memory was 162.7MB in the beginning and 162.7MB in the end (delta: 21.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:16:48,165 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.35ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 79.5MB in the end (delta: 36.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 216.99ms. Allocated memory is still 142.6MB. Free memory was 79.5MB in the beginning and 82.6MB in the end (delta: -3.1MB). Peak memory consumption was 52.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 227.35ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 57.9MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * RCFGBuilder took 2307.29ms. Allocated memory was 142.6MB in the beginning and 327.2MB in the end (delta: 184.5MB). Free memory was 57.9MB in the beginning and 231.0MB in the end (delta: -173.1MB). Peak memory consumption was 145.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8185.24ms. Allocated memory was 327.2MB in the beginning and 478.2MB in the end (delta: 151.0MB). Free memory was 231.0MB in the beginning and 162.7MB in the end (delta: 68.3MB). Peak memory consumption was 217.8MB. Max. memory is 16.1GB. * Witness Printer took 5.22ms. Allocated memory is still 478.2MB. Free memory was 162.7MB in the beginning and 162.7MB in the end (delta: 21.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 21]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 159, overapproximation of bitwiseAnd at line 263. Possible FailurePath: [L26] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 4); [L27] const SORT_1 msb_SORT_1 = (SORT_1)1 << (4 - 1); [L29] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 1); [L30] const SORT_5 msb_SORT_5 = (SORT_5)1 << (1 - 1); [L32] const SORT_13 mask_SORT_13 = (SORT_13)-1 >> (sizeof(SORT_13) * 8 - 32); [L33] const SORT_13 msb_SORT_13 = (SORT_13)1 << (32 - 1); [L35] const SORT_36 mask_SORT_36 = (SORT_36)-1 >> (sizeof(SORT_36) * 8 - 3); [L36] const SORT_36 msb_SORT_36 = (SORT_36)1 << (3 - 1); [L38] const SORT_206 mask_SORT_206 = (SORT_206)-1 >> (sizeof(SORT_206) * 8 - 2); [L39] const SORT_206 msb_SORT_206 = (SORT_206)1 << (2 - 1); [L41] const SORT_1 var_10 = 0; [L42] const SORT_13 var_15 = 4; [L43] const SORT_5 var_22 = 1; [L44] const SORT_36 var_38 = 1; [L45] const SORT_36 var_43 = 2; [L46] const SORT_36 var_50 = 4; [L47] const SORT_36 var_53 = 3; [L48] const SORT_13 var_81 = 1; [L49] const SORT_13 var_101 = 0; [L50] const SORT_5 var_149 = 0; [L51] const SORT_1 var_186 = 15; [L53] SORT_1 input_2; [L54] SORT_1 input_3; [L55] SORT_1 input_4; [L56] SORT_5 input_6; [L57] SORT_1 input_7; [L58] SORT_5 input_8; [L59] SORT_5 input_9; [L60] SORT_13 input_94; [L61] SORT_1 input_96; [L62] SORT_1 input_107; [L63] SORT_1 input_112; [L64] SORT_1 input_114; [L65] SORT_1 input_129; [L66] SORT_5 input_140; [L67] SORT_5 input_144; [L68] SORT_5 input_147; [L69] SORT_5 input_152; [L70] SORT_5 input_155; [L71] SORT_5 input_158; [L72] SORT_1 input_173; [L73] SORT_1 input_176; [L75] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L75] SORT_1 state_11 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L76] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L77] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L78] SORT_5 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L79] EXPR __VERIFIER_nondet_uchar() & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L79] SORT_5 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L80] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L80] SORT_1 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L81] SORT_1 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L82] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L83] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L84] SORT_1 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L85] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L86] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L87] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L88] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L89] EXPR __VERIFIER_nondet_uchar() & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L89] SORT_1 state_70 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L91] SORT_1 init_12_arg_1 = var_10; [L92] state_11 = init_12_arg_1 [L93] SORT_1 init_18_arg_1 = var_10; [L94] state_17 = init_18_arg_1 [L95] SORT_1 init_20_arg_1 = var_10; [L96] state_19 = init_20_arg_1 [L97] SORT_5 init_24_arg_1 = var_22; [L98] state_23 = init_24_arg_1 [L99] SORT_5 init_29_arg_1 = var_22; [L100] state_28 = init_29_arg_1 [L101] SORT_1 init_33_arg_1 = var_10; [L102] state_32 = init_33_arg_1 [L103] SORT_1 init_35_arg_1 = var_10; [L104] state_34 = init_35_arg_1 [L105] SORT_1 init_42_arg_1 = var_10; [L106] state_41 = init_42_arg_1 [L107] SORT_1 init_47_arg_1 = var_10; [L108] state_46 = init_47_arg_1 [L109] SORT_1 init_49_arg_1 = var_10; [L110] state_48 = init_49_arg_1 [L111] SORT_1 init_58_arg_1 = var_10; [L112] state_57 = init_58_arg_1 [L113] SORT_1 init_60_arg_1 = var_10; [L114] state_59 = init_60_arg_1 [L115] SORT_1 init_64_arg_1 = var_10; [L116] state_63 = init_64_arg_1 [L117] SORT_1 init_66_arg_1 = var_10; [L118] state_65 = init_66_arg_1 [L119] SORT_1 init_71_arg_1 = var_10; [L120] state_70 = init_71_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L123] input_2 = __VERIFIER_nondet_uchar() [L124] input_3 = __VERIFIER_nondet_uchar() [L125] input_4 = __VERIFIER_nondet_uchar() [L126] input_6 = __VERIFIER_nondet_uchar() [L127] input_7 = __VERIFIER_nondet_uchar() [L128] input_8 = __VERIFIER_nondet_uchar() [L129] input_9 = __VERIFIER_nondet_uchar() [L130] input_94 = __VERIFIER_nondet_uint() [L131] input_96 = __VERIFIER_nondet_uchar() [L132] input_107 = __VERIFIER_nondet_uchar() [L133] input_112 = __VERIFIER_nondet_uchar() [L134] input_114 = __VERIFIER_nondet_uchar() [L135] input_129 = __VERIFIER_nondet_uchar() [L136] input_140 = __VERIFIER_nondet_uchar() [L137] input_144 = __VERIFIER_nondet_uchar() [L138] input_147 = __VERIFIER_nondet_uchar() [L139] input_152 = __VERIFIER_nondet_uchar() [L140] input_155 = __VERIFIER_nondet_uchar() [L141] input_158 = __VERIFIER_nondet_uchar() [L142] input_173 = __VERIFIER_nondet_uchar() [L143] input_176 = __VERIFIER_nondet_uchar() [L146] SORT_1 var_14_arg_0 = state_11; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_14_arg_0=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L147] EXPR var_14_arg_0 & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L147] var_14_arg_0 = var_14_arg_0 & mask_SORT_1 [L148] SORT_13 var_14 = var_14_arg_0; [L149] SORT_13 var_16_arg_0 = var_14; [L150] SORT_13 var_16_arg_1 = var_15; [L151] SORT_5 var_16 = var_16_arg_0 == var_16_arg_1; [L152] SORT_1 var_21_arg_0 = state_17; [L153] SORT_1 var_21_arg_1 = state_19; [L154] SORT_5 var_21 = var_21_arg_0 == var_21_arg_1; [L155] SORT_5 var_25_arg_0 = state_23; [L156] SORT_5 var_25 = ~var_25_arg_0; [L157] SORT_5 var_26_arg_0 = var_21; [L158] SORT_5 var_26_arg_1 = var_25; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26_arg_0=1, var_26_arg_1=-2, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L159] EXPR var_26_arg_0 & var_26_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L159] SORT_5 var_26 = var_26_arg_0 & var_26_arg_1; [L160] EXPR var_26 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L160] var_26 = var_26 & mask_SORT_5 [L161] SORT_5 var_27_arg_0 = var_16; [L162] SORT_5 var_27_arg_1 = var_26; [L163] SORT_5 var_27 = var_27_arg_0 == var_27_arg_1; [L164] SORT_5 var_30_arg_0 = state_28; [L165] SORT_5 var_30_arg_1 = state_23; [L166] SORT_5 var_30 = var_30_arg_0 == var_30_arg_1; [L167] SORT_5 var_31_arg_0 = var_27; [L168] SORT_5 var_31_arg_1 = var_30; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31_arg_0=0, var_31_arg_1=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L169] EXPR var_31_arg_0 & var_31_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L169] SORT_5 var_31 = var_31_arg_0 & var_31_arg_1; [L170] SORT_1 var_37_arg_0 = state_11; [L171] SORT_36 var_37 = var_37_arg_0 >> 0; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_37=0, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L172] EXPR var_37 & mask_SORT_36 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L172] var_37 = var_37 & mask_SORT_36 [L173] SORT_36 var_54_arg_0 = var_37; [L174] SORT_36 var_54_arg_1 = var_53; [L175] SORT_5 var_54 = var_54_arg_0 == var_54_arg_1; [L176] SORT_36 var_51_arg_0 = var_37; [L177] SORT_36 var_51_arg_1 = var_50; [L178] SORT_5 var_51 = var_51_arg_0 == var_51_arg_1; [L179] SORT_5 var_55_arg_0 = var_54; [L180] SORT_5 var_55_arg_1 = var_51; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_37=0, var_38=1, var_43=2, var_50=4, var_51=0, var_53=3, var_55_arg_0=0, var_55_arg_1=0, var_81=1] [L181] EXPR var_55_arg_0 | var_55_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_37=0, var_38=1, var_43=2, var_50=4, var_51=0, var_53=3, var_81=1] [L181] SORT_5 var_55 = var_55_arg_0 | var_55_arg_1; [L182] EXPR var_55 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_37=0, var_38=1, var_43=2, var_50=4, var_51=0, var_53=3, var_81=1] [L182] var_55 = var_55 & mask_SORT_5 [L183] SORT_5 var_52_arg_0 = var_51; [L184] SORT_1 var_52_arg_1 = state_48; [L185] SORT_1 var_52_arg_2 = state_46; [L186] SORT_1 var_52 = var_52_arg_0 ? var_52_arg_1 : var_52_arg_2; [L187] SORT_36 var_44_arg_0 = var_37; [L188] SORT_36 var_44_arg_1 = var_43; [L189] SORT_5 var_44 = var_44_arg_0 == var_44_arg_1; [L190] SORT_36 var_39_arg_0 = var_37; [L191] SORT_36 var_39_arg_1 = var_38; [L192] SORT_5 var_39 = var_39_arg_0 == var_39_arg_1; [L193] SORT_5 var_40_arg_0 = var_39; [L194] SORT_1 var_40_arg_1 = state_34; [L195] SORT_1 var_40_arg_2 = state_32; [L196] SORT_1 var_40 = var_40_arg_0 ? var_40_arg_1 : var_40_arg_2; [L197] SORT_5 var_45_arg_0 = var_44; [L198] SORT_1 var_45_arg_1 = state_41; [L199] SORT_1 var_45_arg_2 = var_40; [L200] SORT_1 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L201] SORT_5 var_56_arg_0 = var_55; [L202] SORT_1 var_56_arg_1 = var_52; [L203] SORT_1 var_56_arg_2 = var_45; [L204] SORT_1 var_56 = var_56_arg_0 ? var_56_arg_1 : var_56_arg_2; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_81=1] [L205] EXPR var_56 & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L205] var_56 = var_56 & mask_SORT_1 [L206] SORT_1 var_75_arg_0 = state_17; [L207] SORT_5 var_75 = var_75_arg_0 >> 2; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_75=0, var_81=1] [L208] EXPR var_75 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_81=1] [L208] var_75 = var_75 & mask_SORT_5 [L209] SORT_1 var_68_arg_0 = state_17; [L210] SORT_5 var_68 = var_68_arg_0 >> 1; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_68=0, var_75=0, var_81=1] [L211] EXPR var_68 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_75=0, var_81=1] [L211] var_68 = var_68 & mask_SORT_5 [L212] SORT_1 var_61_arg_0 = state_17; [L213] SORT_5 var_61 = var_61_arg_0 >> 0; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_61=0, var_68=0, var_75=0, var_81=1] [L214] EXPR var_61 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_68=0, var_75=0, var_81=1] [L214] var_61 = var_61 & mask_SORT_5 [L215] SORT_5 var_73_arg_0 = var_61; [L216] SORT_1 var_73_arg_1 = input_4; [L217] SORT_1 var_73_arg_2 = input_3; [L218] SORT_1 var_73 = var_73_arg_0 ? var_73_arg_1 : var_73_arg_2; [L219] SORT_5 var_72_arg_0 = var_61; [L220] SORT_1 var_72_arg_1 = input_2; [L221] SORT_1 var_72_arg_2 = state_70; [L222] SORT_1 var_72 = var_72_arg_0 ? var_72_arg_1 : var_72_arg_2; [L223] SORT_5 var_74_arg_0 = var_68; [L224] SORT_1 var_74_arg_1 = var_73; [L225] SORT_1 var_74_arg_2 = var_72; [L226] SORT_1 var_74 = var_74_arg_0 ? var_74_arg_1 : var_74_arg_2; [L227] SORT_5 var_67_arg_0 = var_61; [L228] SORT_1 var_67_arg_1 = state_65; [L229] SORT_1 var_67_arg_2 = state_63; [L230] SORT_1 var_67 = var_67_arg_0 ? var_67_arg_1 : var_67_arg_2; [L231] SORT_5 var_62_arg_0 = var_61; [L232] SORT_1 var_62_arg_1 = state_59; [L233] SORT_1 var_62_arg_2 = state_57; [L234] SORT_1 var_62 = var_62_arg_0 ? var_62_arg_1 : var_62_arg_2; [L235] SORT_5 var_69_arg_0 = var_68; [L236] SORT_1 var_69_arg_1 = var_67; [L237] SORT_1 var_69_arg_2 = var_62; [L238] SORT_1 var_69 = var_69_arg_0 ? var_69_arg_1 : var_69_arg_2; [L239] SORT_5 var_76_arg_0 = var_75; [L240] SORT_1 var_76_arg_1 = var_74; [L241] SORT_1 var_76_arg_2 = var_69; [L242] SORT_1 var_76 = var_76_arg_0 ? var_76_arg_1 : var_76_arg_2; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_76=0, var_81=1] [L243] EXPR var_76 & mask_SORT_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_56=0, var_81=1] [L243] var_76 = var_76 & mask_SORT_1 [L244] SORT_1 var_77_arg_0 = var_56; [L245] SORT_1 var_77_arg_1 = var_76; [L246] SORT_5 var_77 = var_77_arg_0 == var_77_arg_1; [L247] SORT_5 var_78_arg_0 = state_28; [L248] SORT_5 var_78_arg_1 = var_77; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_78_arg_0=1, var_78_arg_1=1, var_81=1] [L249] EXPR var_78_arg_0 | var_78_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_31=0, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L249] SORT_5 var_78 = var_78_arg_0 | var_78_arg_1; [L250] SORT_5 var_79_arg_0 = var_31; [L251] SORT_5 var_79_arg_1 = var_78; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_79_arg_0=0, var_79_arg_1=1, var_81=1] [L252] EXPR var_79_arg_0 & var_79_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L252] SORT_5 var_79 = var_79_arg_0 & var_79_arg_1; [L253] SORT_5 var_80_arg_0 = var_79; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_80_arg_0=0, var_81=1] [L254] EXPR var_80_arg_0 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L254] var_80_arg_0 = var_80_arg_0 & mask_SORT_5 [L255] SORT_13 var_80 = var_80_arg_0; [L256] SORT_13 var_82_arg_0 = var_80; [L257] SORT_13 var_82_arg_1 = var_81; [L258] SORT_5 var_82 = var_82_arg_0 == var_82_arg_1; [L259] SORT_5 var_85_arg_0 = var_82; [L260] SORT_5 var_85 = ~var_85_arg_0; [L261] SORT_5 var_86_arg_0 = var_22; [L262] SORT_5 var_86_arg_1 = var_85; VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1, var_86_arg_0=1, var_86_arg_1=-1] [L263] EXPR var_86_arg_0 & var_86_arg_1 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L263] SORT_5 var_86 = var_86_arg_0 & var_86_arg_1; [L264] EXPR var_86 & mask_SORT_5 VAL [mask_SORT_1=15, mask_SORT_206=3, mask_SORT_36=7, mask_SORT_5=1, state_11=0, state_17=0, state_19=0, state_23=1, state_28=1, state_32=0, state_34=0, state_41=0, state_46=0, state_48=0, state_57=0, state_59=0, state_63=0, state_65=0, state_70=0, var_101=0, var_10=0, var_149=0, var_15=4, var_16=0, var_186=15, var_22=1, var_26=1, var_38=1, var_43=2, var_50=4, var_53=3, var_81=1] [L264] var_86 = var_86 & mask_SORT_5 [L265] SORT_5 bad_87_arg_0 = var_86; [L266] CALL __VERIFIER_assert(!(bad_87_arg_0)) [L21] COND TRUE !(cond) [L21] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 538 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 6318 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6318 mSDsluCounter, 24352 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18104 mSDsCounter, 45 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 925 IncrementalHoareTripleChecker+Invalid, 970 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 45 mSolverCounterUnsat, 6248 mSDtfsCounter, 925 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=599occurred in iteration=8, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 605 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 653 NumberOfCodeBlocks, 653 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 570 ConstructedInterpolants, 0 QuantifiedInterpolants, 1834 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-12-01 23:16:48,187 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/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_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/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 64bit --witnessprinter.graph.data.programhash d34a336c538fc3840e4ea3ff0e6a49a015ced8c6fe61188192176428c4598a52 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:16:50,186 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:16:50,284 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-12-01 23:16:50,290 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:16:50,290 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:16:50,314 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:16:50,315 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:16:50,315 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:16:50,315 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:16:50,315 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:16:50,315 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:16:50,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:16:50,316 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:16:50,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:16:50,316 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:16:50,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:16:50,316 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:16:50,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:16:50,316 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:16:50,316 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:16:50,316 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:16:50,317 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-12-01 23:16:50,317 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-12-01 23:16:50,317 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-12-01 23:16:50,317 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:16:50,317 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:16:50,317 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:16:50,317 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:16:50,317 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:16:50,317 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:16:50,317 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:16:50,317 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:50,317 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:16:50,318 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:16:50,318 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:16:50,318 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:16:50,318 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:50,318 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:16:50,318 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:16:50,318 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:16:50,318 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:16:50,318 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2024-12-01 23:16:50,318 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-12-01 23:16:50,318 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:16:50,319 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:16:50,319 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:16:50,319 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:16:50,319 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_757ee817-7f5c-4e22-a225-75320d927a27/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d34a336c538fc3840e4ea3ff0e6a49a015ced8c6fe61188192176428c4598a52 [2024-12-01 23:16:50,567 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:16:50,575 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:16:50,578 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:16:50,579 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:16:50,580 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:16:50,581 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c [2024-12-01 23:16:53,296 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/data/a45fd95eb/18364b987dee4a07904d8452a05999f1/FLAG795015d8e [2024-12-01 23:16:53,502 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:16:53,502 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c [2024-12-01 23:16:53,513 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/data/a45fd95eb/18364b987dee4a07904d8452a05999f1/FLAG795015d8e [2024-12-01 23:16:53,528 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/data/a45fd95eb/18364b987dee4a07904d8452a05999f1 [2024-12-01 23:16:53,530 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:16:53,532 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:16:53,533 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:16:53,533 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:16:53,538 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:16:53,539 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:16:53" (1/1) ... [2024-12-01 23:16:53,540 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73225292 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:53, skipping insertion in model container [2024-12-01 23:16:53,540 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:16:53" (1/1) ... [2024-12-01 23:16:53,572 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:16:53,727 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_757ee817-7f5c-4e22-a225-75320d927a27/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c[1246,1259] [2024-12-01 23:16:53,895 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:16:53,908 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:16:53,919 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_757ee817-7f5c-4e22-a225-75320d927a27/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.v_FIFO.c[1246,1259] [2024-12-01 23:16:54,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:16:54,024 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:16:54,024 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54 WrapperNode [2024-12-01 23:16:54,024 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:16:54,025 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:16:54,026 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:16:54,026 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:16:54,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,047 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,092 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 877 [2024-12-01 23:16:54,092 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:16:54,092 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:16:54,093 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:16:54,093 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:16:54,102 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,102 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,110 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,132 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]. [2024-12-01 23:16:54,132 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,133 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,154 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,156 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,160 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,168 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:16:54,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:16:54,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:16:54,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:16:54,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (1/1) ... [2024-12-01 23:16:54,184 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:16:54,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:16:54,210 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:16:54,213 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:16:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:16:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-12-01 23:16:54,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:16:54,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:16:54,438 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:16:54,440 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:16:55,152 INFO L? ?]: Removed 152 outVars from TransFormulas that were not future-live. [2024-12-01 23:16:55,153 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:16:55,161 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:16:55,161 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-12-01 23:16:55,161 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:55 BoogieIcfgContainer [2024-12-01 23:16:55,161 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:16:55,163 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:16:55,163 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:16:55,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:16:55,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:16:53" (1/3) ... [2024-12-01 23:16:55,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41151de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:16:55, skipping insertion in model container [2024-12-01 23:16:55,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:16:54" (2/3) ... [2024-12-01 23:16:55,169 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41151de8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:16:55, skipping insertion in model container [2024-12-01 23:16:55,169 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:16:55" (3/3) ... [2024-12-01 23:16:55,171 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.v_FIFO.c [2024-12-01 23:16:55,186 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:16:55,188 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.v_FIFO.c that has 1 procedures, 10 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 23:16:55,235 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:16:55,247 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;@272b611d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:16:55,247 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 23:16:55,251 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:55,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-12-01 23:16:55,256 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:55,256 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-12-01 23:16:55,256 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:55,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:55,261 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-12-01 23:16:55,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 23:16:55,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2108589552] [2024-12-01 23:16:55,272 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:55,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:16:55,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:16:55,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:16:55,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-01 23:16:55,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:55,573 INFO L256 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-12-01 23:16:55,585 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:16:55,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:16:55,968 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-12-01 23:16:55,968 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-12-01 23:16:55,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2108589552] [2024-12-01 23:16:55,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2108589552] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:16:55,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:16:55,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-12-01 23:16:55,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279288465] [2024-12-01 23:16:55,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:16:55,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:16:55,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-12-01 23:16:55,994 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:16:55,994 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:16:55,996 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:56,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:16:56,112 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-12-01 23:16:56,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:16:56,115 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-12-01 23:16:56,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:16:56,122 INFO L225 Difference]: With dead ends: 18 [2024-12-01 23:16:56,122 INFO L226 Difference]: Without dead ends: 10 [2024-12-01 23:16:56,124 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-12-01 23:16:56,127 INFO L435 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-12-01 23:16:56,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-12-01 23:16:56,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-12-01 23:16:56,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-12-01 23:16:56,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:56,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-12-01 23:16:56,158 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-12-01 23:16:56,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:16:56,158 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-12-01 23:16:56,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:16:56,159 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-12-01 23:16:56,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-12-01 23:16:56,159 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:16:56,159 INFO L218 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-12-01 23:16:56,169 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-01 23:16:56,360 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:16:56,360 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:16:56,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:16:56,361 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-12-01 23:16:56,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-12-01 23:16:56,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1103731097] [2024-12-01 23:16:56,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:16:56,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-01 23:16:56,362 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:16:56,364 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-01 23:16:56,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_757ee817-7f5c-4e22-a225-75320d927a27/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-01 23:16:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:16:56,772 INFO L256 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 132 conjuncts are in the unsatisfiable core [2024-12-01 23:16:56,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-01 23:24:23,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:24:23,966 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-01 23:30:18,721 WARN L286 SmtUtils]: Spent 1.95m on a formula simplification that was a NOOP. DAG size: 606 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)