./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label47.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/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_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label47.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dea919d100daeabd0e170d74023c37f0cdb0f50ecfeff5bfc46096aa69a7097c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-01 23:14:30,464 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-01 23:14:30,519 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-12-01 23:14:30,523 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-01 23:14:30,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-01 23:14:30,544 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-01 23:14:30,544 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-01 23:14:30,545 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-01 23:14:30,545 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-01 23:14:30,545 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-01 23:14:30,545 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-12-01 23:14:30,545 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-12-01 23:14:30,545 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-01 23:14:30,546 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-01 23:14:30,546 INFO L153 SettingsManager]: * Use SBE=true [2024-12-01 23:14:30,546 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-01 23:14:30,546 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-12-01 23:14:30,546 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-01 23:14:30,546 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-01 23:14:30,546 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-01 23:14:30,546 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-01 23:14:30,546 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-12-01 23:14:30,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-12-01 23:14:30,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-12-01 23:14:30,546 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-01 23:14:30,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-01 23:14:30,547 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-01 23:14:30,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-01 23:14:30,547 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-12-01 23:14:30,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:14:30,547 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:14:30,547 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:14:30,547 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:14:30,547 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-01 23:14:30,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-01 23:14:30,547 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-12-01 23:14:30,547 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-12-01 23:14:30,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:14:30,548 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-01 23:14:30,548 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-12-01 23:14:30,548 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-12-01 23:14:30,548 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-12-01 23:14:30,548 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-12-01 23:14:30,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-12-01 23:14:30,548 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-12-01 23:14:30,548 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-12-01 23:14:30,548 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-12-01 23:14:30,548 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-12-01 23:14:30,548 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_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dea919d100daeabd0e170d74023c37f0cdb0f50ecfeff5bfc46096aa69a7097c [2024-12-01 23:14:30,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-01 23:14:30,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-01 23:14:30,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-01 23:14:30,805 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-01 23:14:30,806 INFO L274 PluginConnector]: CDTParser initialized [2024-12-01 23:14:30,807 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/eca-rers2012/Problem16_label47.c [2024-12-01 23:14:33,390 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/data/db17ef6e6/1ac397e8e1364f4b9fbbe85251bdddf5/FLAGd3fab62d1 [2024-12-01 23:14:33,693 INFO L384 CDTParser]: Found 1 translation units. [2024-12-01 23:14:33,694 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/sv-benchmarks/c/eca-rers2012/Problem16_label47.c [2024-12-01 23:14:33,711 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/data/db17ef6e6/1ac397e8e1364f4b9fbbe85251bdddf5/FLAGd3fab62d1 [2024-12-01 23:14:33,974 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/data/db17ef6e6/1ac397e8e1364f4b9fbbe85251bdddf5 [2024-12-01 23:14:33,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-01 23:14:33,977 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-01 23:14:33,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-01 23:14:33,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-01 23:14:33,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-01 23:14:33,983 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:14:33" (1/1) ... [2024-12-01 23:14:33,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6583fcb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:33, skipping insertion in model container [2024-12-01 23:14:33,984 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.12 11:14:33" (1/1) ... [2024-12-01 23:14:34,027 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-01 23:14:34,178 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_781cb022-cce9-4e95-8b79-ca4cea1fea8a/sv-benchmarks/c/eca-rers2012/Problem16_label47.c[6782,6795] [2024-12-01 23:14:34,421 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:14:34,429 INFO L200 MainTranslator]: Completed pre-run [2024-12-01 23:14:34,449 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_781cb022-cce9-4e95-8b79-ca4cea1fea8a/sv-benchmarks/c/eca-rers2012/Problem16_label47.c[6782,6795] [2024-12-01 23:14:34,610 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-01 23:14:34,626 INFO L204 MainTranslator]: Completed translation [2024-12-01 23:14:34,626 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34 WrapperNode [2024-12-01 23:14:34,627 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-01 23:14:34,628 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-01 23:14:34,628 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-01 23:14:34,628 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-01 23:14:34,634 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,662 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,760 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-12-01 23:14:34,760 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-01 23:14:34,761 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-01 23:14:34,761 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-01 23:14:34,761 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-01 23:14:34,770 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,786 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,827 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 23:14:34,827 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,827 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,867 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,877 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,886 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,907 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-01 23:14:34,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-01 23:14:34,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-01 23:14:34,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-01 23:14:34,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (1/1) ... [2024-12-01 23:14:34,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-12-01 23:14:34,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-01 23:14:34,961 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-12-01 23:14:34,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-12-01 23:14:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-01 23:14:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-01 23:14:35,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-01 23:14:35,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-01 23:14:35,076 INFO L234 CfgBuilder]: Building ICFG [2024-12-01 23:14:35,078 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-01 23:14:37,100 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-12-01 23:14:37,100 INFO L283 CfgBuilder]: Performing block encoding [2024-12-01 23:14:37,120 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-01 23:14:37,120 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-12-01 23:14:37,121 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:37 BoogieIcfgContainer [2024-12-01 23:14:37,121 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-01 23:14:37,124 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-12-01 23:14:37,124 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-12-01 23:14:37,128 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-12-01 23:14:37,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.12 11:14:33" (1/3) ... [2024-12-01 23:14:37,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656bc7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:14:37, skipping insertion in model container [2024-12-01 23:14:37,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.12 11:14:34" (2/3) ... [2024-12-01 23:14:37,130 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@656bc7d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.12 11:14:37, skipping insertion in model container [2024-12-01 23:14:37,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:37" (3/3) ... [2024-12-01 23:14:37,131 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem16_label47.c [2024-12-01 23:14:37,146 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-12-01 23:14:37,147 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem16_label47.c that has 1 procedures, 396 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-12-01 23:14:37,211 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-12-01 23:14:37,223 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;@42cc757, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-12-01 23:14:37,224 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-12-01 23:14:37,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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 23:14:37,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-12-01 23:14:37,236 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:37,237 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] [2024-12-01 23:14:37,237 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:14:37,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:37,241 INFO L85 PathProgramCache]: Analyzing trace with hash 962891993, now seen corresponding path program 1 times [2024-12-01 23:14:37,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:37,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487576970] [2024-12-01 23:14:37,248 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:37,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:37,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:37,725 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 23:14:37,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:37,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487576970] [2024-12-01 23:14:37,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487576970] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:37,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:37,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:14:37,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230299321] [2024-12-01 23:14:37,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:37,732 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-12-01 23:14:37,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:37,751 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-01 23:14:37,752 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-01 23:14:37,754 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 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 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 23:14:40,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:40,105 INFO L93 Difference]: Finished difference Result 1456 states and 2764 transitions. [2024-12-01 23:14:40,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-01 23:14:40,107 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 65 [2024-12-01 23:14:40,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:40,121 INFO L225 Difference]: With dead ends: 1456 [2024-12-01 23:14:40,121 INFO L226 Difference]: Without dead ends: 991 [2024-12-01 23:14:40,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 23:14:40,127 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 1070 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 794 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1070 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 2410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 794 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:40,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1070 Valid, 72 Invalid, 2410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [794 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-12-01 23:14:40,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 991 states. [2024-12-01 23:14:40,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 991 to 991. [2024-12-01 23:14:40,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 990 states have (on average 1.5222222222222221) internal successors, (1507), 990 states have internal predecessors, (1507), 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 23:14:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1507 transitions. [2024-12-01 23:14:40,195 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1507 transitions. Word has length 65 [2024-12-01 23:14:40,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:40,195 INFO L471 AbstractCegarLoop]: Abstraction has 991 states and 1507 transitions. [2024-12-01 23:14:40,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 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 23:14:40,195 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1507 transitions. [2024-12-01 23:14:40,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-12-01 23:14:40,202 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:40,202 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:40,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-12-01 23:14:40,203 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:14:40,203 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:40,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1246075710, now seen corresponding path program 1 times [2024-12-01 23:14:40,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:40,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679223913] [2024-12-01 23:14:40,204 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:40,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:40,478 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 211 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-12-01 23:14:40,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:40,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679223913] [2024-12-01 23:14:40,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679223913] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:40,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:40,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:14:40,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972021350] [2024-12-01 23:14:40,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:40,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:14:40,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:40,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:14:40,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:40,482 INFO L87 Difference]: Start difference. First operand 991 states and 1507 transitions. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 23:14:41,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:41,701 INFO L93 Difference]: Finished difference Result 1980 states and 3240 transitions. [2024-12-01 23:14:41,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:14:41,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 240 [2024-12-01 23:14:41,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:41,706 INFO L225 Difference]: With dead ends: 1980 [2024-12-01 23:14:41,706 INFO L226 Difference]: Without dead ends: 1320 [2024-12-01 23:14:41,708 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:41,709 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 294 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 796 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 1159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 796 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:41,709 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 539 Invalid, 1159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 796 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-01 23:14:41,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-12-01 23:14:41,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-12-01 23:14:41,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.4420015163002275) internal successors, (1902), 1319 states have internal predecessors, (1902), 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 23:14:41,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 1902 transitions. [2024-12-01 23:14:41,733 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 1902 transitions. Word has length 240 [2024-12-01 23:14:41,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:41,734 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 1902 transitions. [2024-12-01 23:14:41,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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 23:14:41,734 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 1902 transitions. [2024-12-01 23:14:41,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-12-01 23:14:41,738 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:41,738 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:41,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-12-01 23:14:41,739 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:14:41,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:41,739 INFO L85 PathProgramCache]: Analyzing trace with hash 1313965866, now seen corresponding path program 1 times [2024-12-01 23:14:41,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:41,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990352465] [2024-12-01 23:14:41,740 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:41,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:41,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:41,933 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-12-01 23:14:41,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:41,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990352465] [2024-12-01 23:14:41,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990352465] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:41,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:41,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:14:41,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872342787] [2024-12-01 23:14:41,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:41,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:14:41,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:41,935 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:14:41,935 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:41,935 INFO L87 Difference]: Start difference. First operand 1320 states and 1902 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 2 states have internal predecessors, (193), 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 23:14:43,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:43,271 INFO L93 Difference]: Finished difference Result 2638 states and 4030 transitions. [2024-12-01 23:14:43,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:14:43,272 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 2 states have internal predecessors, (193), 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 255 [2024-12-01 23:14:43,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:43,278 INFO L225 Difference]: With dead ends: 2638 [2024-12-01 23:14:43,278 INFO L226 Difference]: Without dead ends: 1649 [2024-12-01 23:14:43,280 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:43,281 INFO L435 NwaCegarLoop]: 175 mSDtfsCounter, 290 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 303 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 303 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:43,281 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 179 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [303 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-12-01 23:14:43,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1649 states. [2024-12-01 23:14:43,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1649 to 1649. [2024-12-01 23:14:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1649 states, 1648 states have (on average 1.4156553398058251) internal successors, (2333), 1648 states have internal predecessors, (2333), 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 23:14:43,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2333 transitions. [2024-12-01 23:14:43,324 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2333 transitions. Word has length 255 [2024-12-01 23:14:43,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:43,324 INFO L471 AbstractCegarLoop]: Abstraction has 1649 states and 2333 transitions. [2024-12-01 23:14:43,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 2 states have internal predecessors, (193), 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 23:14:43,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2333 transitions. [2024-12-01 23:14:43,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2024-12-01 23:14:43,330 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:43,330 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:43,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-12-01 23:14:43,331 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:14:43,331 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:43,331 INFO L85 PathProgramCache]: Analyzing trace with hash -2065819288, now seen corresponding path program 1 times [2024-12-01 23:14:43,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:43,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109798365] [2024-12-01 23:14:43,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:43,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:43,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:43,652 INFO L134 CoverageAnalysis]: Checked inductivity of 448 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-12-01 23:14:43,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:43,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109798365] [2024-12-01 23:14:43,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109798365] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:43,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:43,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-12-01 23:14:43,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463151676] [2024-12-01 23:14:43,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:43,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:14:43,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:43,653 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:14:43,653 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:43,654 INFO L87 Difference]: Start difference. First operand 1649 states and 2333 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 2 states have internal predecessors, (187), 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 23:14:44,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:44,896 INFO L93 Difference]: Finished difference Result 3954 states and 5755 transitions. [2024-12-01 23:14:44,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:14:44,896 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 2 states have internal predecessors, (187), 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 334 [2024-12-01 23:14:44,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:44,901 INFO L225 Difference]: With dead ends: 3954 [2024-12-01 23:14:44,901 INFO L226 Difference]: Without dead ends: 2307 [2024-12-01 23:14:44,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:44,904 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 352 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 352 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:44,904 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [352 Valid, 155 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-12-01 23:14:44,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2024-12-01 23:14:44,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2307. [2024-12-01 23:14:44,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 2306 states have (on average 1.0941023417172593) internal successors, (2523), 2306 states have internal predecessors, (2523), 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 23:14:44,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 2523 transitions. [2024-12-01 23:14:44,937 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 2523 transitions. Word has length 334 [2024-12-01 23:14:44,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:44,937 INFO L471 AbstractCegarLoop]: Abstraction has 2307 states and 2523 transitions. [2024-12-01 23:14:44,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 2 states have internal predecessors, (187), 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 23:14:44,937 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 2523 transitions. [2024-12-01 23:14:44,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 731 [2024-12-01 23:14:44,949 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:44,949 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:44,949 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-12-01 23:14:44,950 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:14:44,950 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:44,950 INFO L85 PathProgramCache]: Analyzing trace with hash 922299861, now seen corresponding path program 1 times [2024-12-01 23:14:44,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:44,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120158292] [2024-12-01 23:14:44,950 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:44,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:45,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1327 backedges. 989 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked. [2024-12-01 23:14:45,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:45,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120158292] [2024-12-01 23:14:45,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120158292] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:45,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:45,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:14:45,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324963944] [2024-12-01 23:14:45,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:45,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:14:45,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:45,755 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:14:45,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:45,755 INFO L87 Difference]: Start difference. First operand 2307 states and 2523 transitions. Second operand has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 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 23:14:46,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:46,605 INFO L93 Difference]: Finished difference Result 5599 states and 6152 transitions. [2024-12-01 23:14:46,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:14:46,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 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 730 [2024-12-01 23:14:46,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:46,616 INFO L225 Difference]: With dead ends: 5599 [2024-12-01 23:14:46,617 INFO L226 Difference]: Without dead ends: 3623 [2024-12-01 23:14:46,619 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:46,620 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 220 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 829 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:46,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 427 Invalid, 829 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 756 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-12-01 23:14:46,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3623 states. [2024-12-01 23:14:46,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3623 to 3623. [2024-12-01 23:14:46,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3623 states, 3622 states have (on average 1.067642186637217) internal successors, (3867), 3622 states have internal predecessors, (3867), 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 23:14:46,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3623 states to 3623 states and 3867 transitions. [2024-12-01 23:14:46,691 INFO L78 Accepts]: Start accepts. Automaton has 3623 states and 3867 transitions. Word has length 730 [2024-12-01 23:14:46,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:46,692 INFO L471 AbstractCegarLoop]: Abstraction has 3623 states and 3867 transitions. [2024-12-01 23:14:46,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.66666666666666) internal successors, (458), 3 states have internal predecessors, (458), 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 23:14:46,693 INFO L276 IsEmpty]: Start isEmpty. Operand 3623 states and 3867 transitions. [2024-12-01 23:14:46,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2024-12-01 23:14:46,702 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:46,703 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:46,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-12-01 23:14:46,703 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:14:46,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:46,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1071710479, now seen corresponding path program 1 times [2024-12-01 23:14:46,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:46,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974016105] [2024-12-01 23:14:46,704 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:46,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:46,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:47,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1419 backedges. 948 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2024-12-01 23:14:47,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:47,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974016105] [2024-12-01 23:14:47,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974016105] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:47,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:47,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:14:47,374 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239454015] [2024-12-01 23:14:47,374 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:47,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:14:47,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:47,376 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:14:47,376 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:47,376 INFO L87 Difference]: Start difference. First operand 3623 states and 3867 transitions. Second operand has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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 23:14:48,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:48,150 INFO L93 Difference]: Finished difference Result 8889 states and 9590 transitions. [2024-12-01 23:14:48,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:14:48,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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 793 [2024-12-01 23:14:48,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:48,158 INFO L225 Difference]: With dead ends: 8889 [2024-12-01 23:14:48,158 INFO L226 Difference]: Without dead ends: 5597 [2024-12-01 23:14:48,160 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:48,161 INFO L435 NwaCegarLoop]: 426 mSDtfsCounter, 171 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 774 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 859 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 774 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:48,161 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 432 Invalid, 859 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 774 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-01 23:14:48,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5597 states. [2024-12-01 23:14:48,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5597 to 5268. [2024-12-01 23:14:48,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5268 states, 5267 states have (on average 1.0569584203531421) internal successors, (5567), 5267 states have internal predecessors, (5567), 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 23:14:48,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5268 states to 5268 states and 5567 transitions. [2024-12-01 23:14:48,240 INFO L78 Accepts]: Start accepts. Automaton has 5268 states and 5567 transitions. Word has length 793 [2024-12-01 23:14:48,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:48,241 INFO L471 AbstractCegarLoop]: Abstraction has 5268 states and 5567 transitions. [2024-12-01 23:14:48,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.66666666666666) internal successors, (539), 3 states have internal predecessors, (539), 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 23:14:48,241 INFO L276 IsEmpty]: Start isEmpty. Operand 5268 states and 5567 transitions. [2024-12-01 23:14:48,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2024-12-01 23:14:48,252 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:48,253 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:48,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-12-01 23:14:48,253 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:14:48,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:48,254 INFO L85 PathProgramCache]: Analyzing trace with hash -649418959, now seen corresponding path program 1 times [2024-12-01 23:14:48,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:48,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140310499] [2024-12-01 23:14:48,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:48,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:48,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:48,777 INFO L134 CoverageAnalysis]: Checked inductivity of 1421 backedges. 665 proven. 0 refuted. 0 times theorem prover too weak. 756 trivial. 0 not checked. [2024-12-01 23:14:48,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:48,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140310499] [2024-12-01 23:14:48,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140310499] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:48,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:48,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:14:48,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401064024] [2024-12-01 23:14:48,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:48,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:14:48,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:48,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:14:48,780 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:48,780 INFO L87 Difference]: Start difference. First operand 5268 states and 5567 transitions. Second operand has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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 23:14:49,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:49,547 INFO L93 Difference]: Finished difference Result 11850 states and 12584 transitions. [2024-12-01 23:14:49,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:14:49,548 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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 818 [2024-12-01 23:14:49,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:49,559 INFO L225 Difference]: With dead ends: 11850 [2024-12-01 23:14:49,559 INFO L226 Difference]: Without dead ends: 6913 [2024-12-01 23:14:49,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:49,564 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 251 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 754 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 81 SdHoareTripleChecker+Invalid, 842 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:49,564 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 81 Invalid, 842 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 754 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-01 23:14:49,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2024-12-01 23:14:49,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6584. [2024-12-01 23:14:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6584 states, 6583 states have (on average 1.0446604891386906) internal successors, (6877), 6583 states have internal predecessors, (6877), 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 23:14:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6584 states to 6584 states and 6877 transitions. [2024-12-01 23:14:49,658 INFO L78 Accepts]: Start accepts. Automaton has 6584 states and 6877 transitions. Word has length 818 [2024-12-01 23:14:49,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:49,659 INFO L471 AbstractCegarLoop]: Abstraction has 6584 states and 6877 transitions. [2024-12-01 23:14:49,659 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 133.33333333333334) internal successors, (400), 3 states have internal predecessors, (400), 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 23:14:49,660 INFO L276 IsEmpty]: Start isEmpty. Operand 6584 states and 6877 transitions. [2024-12-01 23:14:49,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1290 [2024-12-01 23:14:49,679 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:49,680 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:49,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-12-01 23:14:49,680 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:14:49,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:49,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1728290603, now seen corresponding path program 1 times [2024-12-01 23:14:49,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:49,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913534738] [2024-12-01 23:14:49,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:49,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:49,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:50,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3057 backedges. 1801 proven. 0 refuted. 0 times theorem prover too weak. 1256 trivial. 0 not checked. [2024-12-01 23:14:50,914 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:50,914 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913534738] [2024-12-01 23:14:50,914 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913534738] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:50,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:50,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-12-01 23:14:50,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059240746] [2024-12-01 23:14:50,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:50,916 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-12-01 23:14:50,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:50,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-01 23:14:50,917 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:50,917 INFO L87 Difference]: Start difference. First operand 6584 states and 6877 transitions. Second operand has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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 23:14:51,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:51,708 INFO L93 Difference]: Finished difference Result 13824 states and 14473 transitions. [2024-12-01 23:14:51,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-01 23:14:51,708 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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 1289 [2024-12-01 23:14:51,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:51,723 INFO L225 Difference]: With dead ends: 13824 [2024-12-01 23:14:51,723 INFO L226 Difference]: Without dead ends: 7571 [2024-12-01 23:14:51,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-01 23:14:51,727 INFO L435 NwaCegarLoop]: 433 mSDtfsCounter, 224 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:51,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 439 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-12-01 23:14:51,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7571 states. [2024-12-01 23:14:51,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7571 to 7571. [2024-12-01 23:14:51,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7571 states, 7570 states have (on average 1.0397622192866578) internal successors, (7871), 7570 states have internal predecessors, (7871), 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 23:14:51,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7571 states to 7571 states and 7871 transitions. [2024-12-01 23:14:51,795 INFO L78 Accepts]: Start accepts. Automaton has 7571 states and 7871 transitions. Word has length 1289 [2024-12-01 23:14:51,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:51,797 INFO L471 AbstractCegarLoop]: Abstraction has 7571 states and 7871 transitions. [2024-12-01 23:14:51,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 215.33333333333334) internal successors, (646), 3 states have internal predecessors, (646), 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 23:14:51,797 INFO L276 IsEmpty]: Start isEmpty. Operand 7571 states and 7871 transitions. [2024-12-01 23:14:51,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1308 [2024-12-01 23:14:51,814 INFO L210 NwaCegarLoop]: Found error trace [2024-12-01 23:14:51,814 INFO L218 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 23:14:51,814 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-12-01 23:14:51,814 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-12-01 23:14:51,815 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-01 23:14:51,815 INFO L85 PathProgramCache]: Analyzing trace with hash 133737534, now seen corresponding path program 1 times [2024-12-01 23:14:51,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-12-01 23:14:51,815 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803429650] [2024-12-01 23:14:51,815 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-01 23:14:51,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-01 23:14:51,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-01 23:14:52,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3087 backedges. 440 proven. 0 refuted. 0 times theorem prover too weak. 2647 trivial. 0 not checked. [2024-12-01 23:14:52,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-12-01 23:14:52,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803429650] [2024-12-01 23:14:52,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803429650] provided 1 perfect and 0 imperfect interpolant sequences [2024-12-01 23:14:52,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-12-01 23:14:52,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-12-01 23:14:52,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176866009] [2024-12-01 23:14:52,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-12-01 23:14:52,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-12-01 23:14:52,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-12-01 23:14:52,931 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-12-01 23:14:52,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:14:52,932 INFO L87 Difference]: Start difference. First operand 7571 states and 7871 transitions. Second operand has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 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 23:14:53,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-01 23:14:53,600 INFO L93 Difference]: Finished difference Result 14539 states and 15123 transitions. [2024-12-01 23:14:53,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-01 23:14:53,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 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 1307 [2024-12-01 23:14:53,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-12-01 23:14:53,601 INFO L225 Difference]: With dead ends: 14539 [2024-12-01 23:14:53,601 INFO L226 Difference]: Without dead ends: 0 [2024-12-01 23:14:53,606 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-12-01 23:14:53,607 INFO L435 NwaCegarLoop]: 434 mSDtfsCounter, 33 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 935 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 451 SdHoareTripleChecker+Invalid, 938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-12-01 23:14:53,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 451 Invalid, 938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 935 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-12-01 23:14:53,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-12-01 23:14:53,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-12-01 23:14:53,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-01 23:14:53,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-12-01 23:14:53,608 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1307 [2024-12-01 23:14:53,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-12-01 23:14:53,608 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-12-01 23:14:53,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.833333333333336) internal successors, (359), 6 states have internal predecessors, (359), 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 23:14:53,609 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-12-01 23:14:53,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-12-01 23:14:53,612 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-12-01 23:14:53,612 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-12-01 23:14:53,616 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-01 23:14:53,618 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-12-01 23:14:53,748 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-12-01 23:14:53,761 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.12 11:14:53 BoogieIcfgContainer [2024-12-01 23:14:53,761 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-12-01 23:14:53,762 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-01 23:14:53,762 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-01 23:14:53,762 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-01 23:14:53,763 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.12 11:14:37" (3/4) ... [2024-12-01 23:14:53,765 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-12-01 23:14:53,786 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-12-01 23:14:53,787 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-12-01 23:14:53,789 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-12-01 23:14:53,790 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-12-01 23:14:53,936 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-01 23:14:53,936 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/witness.yml [2024-12-01 23:14:53,937 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-01 23:14:53,937 INFO L158 Benchmark]: Toolchain (without parser) took 19960.64ms. Allocated memory was 142.6MB in the beginning and 612.4MB in the end (delta: 469.8MB). Free memory was 112.8MB in the beginning and 466.9MB in the end (delta: -354.1MB). Peak memory consumption was 119.4MB. Max. memory is 16.1GB. [2024-12-01 23:14:53,938 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:14:53,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.70ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 54.9MB in the end (delta: 57.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. [2024-12-01 23:14:53,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 132.83ms. Allocated memory is still 142.6MB. Free memory was 54.9MB in the beginning and 90.8MB in the end (delta: -35.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2024-12-01 23:14:53,938 INFO L158 Benchmark]: Boogie Preprocessor took 170.31ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 57.1MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2024-12-01 23:14:53,939 INFO L158 Benchmark]: RCFGBuilder took 2188.84ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 57.1MB in the beginning and 132.9MB in the end (delta: -75.8MB). Peak memory consumption was 105.8MB. Max. memory is 16.1GB. [2024-12-01 23:14:53,939 INFO L158 Benchmark]: TraceAbstraction took 16637.78ms. Allocated memory was 318.8MB in the beginning and 612.4MB in the end (delta: 293.6MB). Free memory was 132.1MB in the beginning and 491.8MB in the end (delta: -359.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-01 23:14:53,939 INFO L158 Benchmark]: Witness Printer took 174.71ms. Allocated memory is still 612.4MB. Free memory was 491.8MB in the beginning and 466.9MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-01 23:14:53,941 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 142.6MB. Free memory is still 83.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 649.70ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 54.9MB in the end (delta: 57.9MB). Peak memory consumption was 58.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 132.83ms. Allocated memory is still 142.6MB. Free memory was 54.9MB in the beginning and 90.8MB in the end (delta: -35.9MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 170.31ms. Allocated memory is still 142.6MB. Free memory was 90.8MB in the beginning and 57.1MB in the end (delta: 33.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2188.84ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 57.1MB in the beginning and 132.9MB in the end (delta: -75.8MB). Peak memory consumption was 105.8MB. Max. memory is 16.1GB. * TraceAbstraction took 16637.78ms. Allocated memory was 318.8MB in the beginning and 612.4MB in the end (delta: 293.6MB). Free memory was 132.1MB in the beginning and 491.8MB in the end (delta: -359.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 174.71ms. Allocated memory is still 612.4MB. Free memory was 491.8MB in the beginning and 466.9MB in the end (delta: 24.9MB). Peak memory consumption was 25.2MB. 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 - PositiveResult [Line: 212]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.4s, OverallIterations: 9, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2905 SdHoareTripleChecker+Valid, 9.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2905 mSDsluCounter, 2775 SdHoareTripleChecker+Invalid, 7.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 69 mSDsCounter, 2063 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8088 IncrementalHoareTripleChecker+Invalid, 10151 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2063 mSolverCounterUnsat, 2706 mSDtfsCounter, 8088 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7571occurred in iteration=8, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 9 MinimizatonAttempts, 658 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 5831 NumberOfCodeBlocks, 5831 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 5822 ConstructedInterpolants, 0 QuantifiedInterpolants, 9280 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 11182/11182 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: ((((((a12 == 6) && (a16 <= 11)) || ((a16 != 10) && (a15 <= 3))) || ((a12 == 8) && (a15 == 3))) || ((5 == a12) && (a16 <= 11))) || ((a16 != 10) && (a16 <= 11))) RESULT: Ultimate proved your program to be correct! [2024-12-01 23:14:53,960 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_781cb022-cce9-4e95-8b79-ca4cea1fea8a/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE