./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label34.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_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label34.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 550f3a62df7d5eada5d2aa8dd32299382207e40f85198cb35440276faa9cf7d3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:31:53,005 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:31:53,065 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 23:31:53,071 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:31:53,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:31:53,104 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:31:53,105 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:31:53,105 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:31:53,105 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:31:53,106 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:31:53,106 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 23:31:53,106 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 23:31:53,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:31:53,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:31:53,106 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:31:53,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:31:53,107 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 23:31:53,107 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:31:53,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:31:53,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:31:53,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:31:53,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 23:31:53,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 23:31:53,109 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 23:31:53,110 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:31:53,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:31:53,110 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:31:53,111 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:31:53,112 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 23:31:53,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:53,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:53,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:53,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:53,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:31:53,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:31:53,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 23:31:53,112 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 23:31:53,112 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:53,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:31:53,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 23:31:53,113 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 23:31:53,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 23:31:53,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 23:31:53,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 23:31:53,113 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 23:31:53,113 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 23:31:53,113 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 23:31:53,113 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 23:31:53,113 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_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 550f3a62df7d5eada5d2aa8dd32299382207e40f85198cb35440276faa9cf7d3 [2024-11-27 23:31:53,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:31:53,442 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:31:53,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:31:53,446 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:31:53,446 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:31:53,447 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem10_label34.c [2024-11-27 23:31:56,391 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/data/2dd24c789/fdcd148a02f442d6ad1d63c0c5974ad2/FLAGc58d67c2d [2024-11-27 23:31:56,739 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:31:56,740 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/sv-benchmarks/c/eca-rers2012/Problem10_label34.c [2024-11-27 23:31:56,752 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/data/2dd24c789/fdcd148a02f442d6ad1d63c0c5974ad2/FLAGc58d67c2d [2024-11-27 23:31:56,955 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/data/2dd24c789/fdcd148a02f442d6ad1d63c0c5974ad2 [2024-11-27 23:31:56,960 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:31:56,961 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:31:56,964 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:56,965 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:31:56,971 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:31:56,972 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:56" (1/1) ... [2024-11-27 23:31:56,975 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42adfa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:56, skipping insertion in model container [2024-11-27 23:31:56,976 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:31:56" (1/1) ... [2024-11-27 23:31:57,032 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:31:57,323 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_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/sv-benchmarks/c/eca-rers2012/Problem10_label34.c[7166,7179] [2024-11-27 23:31:57,465 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:57,475 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:31:57,517 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_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/sv-benchmarks/c/eca-rers2012/Problem10_label34.c[7166,7179] [2024-11-27 23:31:57,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:31:57,624 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:31:57,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57 WrapperNode [2024-11-27 23:31:57,624 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:31:57,626 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:57,626 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:31:57,626 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:31:57,632 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,652 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,718 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 597 [2024-11-27 23:31:57,718 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:31:57,719 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:31:57,719 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:31:57,719 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:31:57,729 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,729 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,735 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,759 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-27 23:31:57,759 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,759 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,780 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,782 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,790 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,794 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,798 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:31:57,809 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:31:57,809 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:31:57,809 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:31:57,812 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (1/1) ... [2024-11-27 23:31:57,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 23:31:57,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:31:57,852 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 23:31:57,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 23:31:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:31:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:31:57,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:31:57,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:31:57,973 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:31:57,975 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:31:59,415 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-27 23:31:59,415 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:31:59,434 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:31:59,434 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 23:31:59,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:59 BoogieIcfgContainer [2024-11-27 23:31:59,435 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:31:59,439 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 23:31:59,439 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 23:31:59,445 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 23:31:59,446 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:31:56" (1/3) ... [2024-11-27 23:31:59,447 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a952853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:59, skipping insertion in model container [2024-11-27 23:31:59,447 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:31:57" (2/3) ... [2024-11-27 23:31:59,449 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a952853 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:31:59, skipping insertion in model container [2024-11-27 23:31:59,449 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:59" (3/3) ... [2024-11-27 23:31:59,450 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem10_label34.c [2024-11-27 23:31:59,467 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 23:31:59,470 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem10_label34.c that has 1 procedures, 206 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 23:31:59,575 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 23:31:59,586 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;@4c36a5a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 23:31:59,586 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 23:31:59,591 INFO L276 IsEmpty]: Start isEmpty. Operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:31:59,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-27 23:31:59,599 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:31:59,600 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] [2024-11-27 23:31:59,601 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:31:59,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:31:59,606 INFO L85 PathProgramCache]: Analyzing trace with hash -696204111, now seen corresponding path program 1 times [2024-11-27 23:31:59,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:31:59,614 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233507570] [2024-11-27 23:31:59,614 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:31:59,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:31:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:00,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:00,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:00,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233507570] [2024-11-27 23:32:00,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233507570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:00,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:00,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:32:00,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185099573] [2024-11-27 23:32:00,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:00,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:00,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:00,172 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:00,175 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:32:00,179 INFO L87 Difference]: Start difference. First operand has 206 states, 204 states have (on average 1.6862745098039216) internal successors, (344), 205 states have internal predecessors, (344), 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 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:01,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:01,306 INFO L93 Difference]: Finished difference Result 552 states and 966 transitions. [2024-11-27 23:32:01,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:01,309 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 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 63 [2024-11-27 23:32:01,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:01,323 INFO L225 Difference]: With dead ends: 552 [2024-11-27 23:32:01,324 INFO L226 Difference]: Without dead ends: 282 [2024-11-27 23:32:01,330 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 [2024-11-27 23:32:01,337 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 100 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:01,342 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 120 Invalid, 544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 23:32:01,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-11-27 23:32:01,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2024-11-27 23:32:01,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 281 states have (on average 1.3416370106761566) internal successors, (377), 281 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:01,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 377 transitions. [2024-11-27 23:32:01,425 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 377 transitions. Word has length 63 [2024-11-27 23:32:01,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:01,425 INFO L471 AbstractCegarLoop]: Abstraction has 282 states and 377 transitions. [2024-11-27 23:32:01,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:01,426 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 377 transitions. [2024-11-27 23:32:01,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-27 23:32:01,429 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:01,430 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:32:01,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 23:32:01,430 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:01,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:01,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1562755460, now seen corresponding path program 1 times [2024-11-27 23:32:01,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:01,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589898351] [2024-11-27 23:32:01,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:01,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:01,911 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:01,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:01,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589898351] [2024-11-27 23:32:01,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589898351] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:01,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:01,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:32:01,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872109713] [2024-11-27 23:32:01,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:01,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:01,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:01,916 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:01,916 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:32:01,916 INFO L87 Difference]: Start difference. First operand 282 states and 377 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:02,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:02,658 INFO L93 Difference]: Finished difference Result 701 states and 967 transitions. [2024-11-27 23:32:02,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:02,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 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 129 [2024-11-27 23:32:02,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:02,661 INFO L225 Difference]: With dead ends: 701 [2024-11-27 23:32:02,662 INFO L226 Difference]: Without dead ends: 421 [2024-11-27 23:32:02,663 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 [2024-11-27 23:32:02,664 INFO L435 NwaCegarLoop]: 210 mSDtfsCounter, 83 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 340 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 215 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 340 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:02,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 215 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 340 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:32:02,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-27 23:32:02,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2024-11-27 23:32:02,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 1.2523809523809524) internal successors, (526), 420 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:02,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 526 transitions. [2024-11-27 23:32:02,685 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 526 transitions. Word has length 129 [2024-11-27 23:32:02,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:02,686 INFO L471 AbstractCegarLoop]: Abstraction has 421 states and 526 transitions. [2024-11-27 23:32:02,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 3 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:02,686 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 526 transitions. [2024-11-27 23:32:02,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-27 23:32:02,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:02,691 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:32:02,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 23:32:02,691 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:02,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:02,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1045343629, now seen corresponding path program 1 times [2024-11-27 23:32:02,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:02,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304114169] [2024-11-27 23:32:02,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:02,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:02,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:03,087 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:03,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:03,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304114169] [2024-11-27 23:32:03,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304114169] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:03,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:03,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:32:03,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970026098] [2024-11-27 23:32:03,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:03,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:03,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:03,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:03,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:32:03,093 INFO L87 Difference]: Start difference. First operand 421 states and 526 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:03,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:03,692 INFO L93 Difference]: Finished difference Result 979 states and 1209 transitions. [2024-11-27 23:32:03,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:03,693 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 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 136 [2024-11-27 23:32:03,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:03,696 INFO L225 Difference]: With dead ends: 979 [2024-11-27 23:32:03,696 INFO L226 Difference]: Without dead ends: 560 [2024-11-27 23:32:03,697 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 [2024-11-27 23:32:03,698 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 367 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:03,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 77 Invalid, 367 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:32:03,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-27 23:32:03,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-11-27 23:32:03,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2075134168157424) internal successors, (675), 559 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:03,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 675 transitions. [2024-11-27 23:32:03,720 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 675 transitions. Word has length 136 [2024-11-27 23:32:03,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:03,721 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 675 transitions. [2024-11-27 23:32:03,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 2 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:03,721 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 675 transitions. [2024-11-27 23:32:03,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-27 23:32:03,724 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:03,724 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:32:03,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 23:32:03,725 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:03,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:03,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1197108312, now seen corresponding path program 1 times [2024-11-27 23:32:03,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:03,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [814326782] [2024-11-27 23:32:03,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:03,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:03,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:04,376 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:04,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:04,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [814326782] [2024-11-27 23:32:04,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [814326782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:04,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:04,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 23:32:04,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093032113] [2024-11-27 23:32:04,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:04,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 23:32:04,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:04,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:32:04,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:32:04,380 INFO L87 Difference]: Start difference. First operand 560 states and 675 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:05,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:05,127 INFO L93 Difference]: Finished difference Result 1034 states and 1254 transitions. [2024-11-27 23:32:05,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 23:32:05,128 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 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 138 [2024-11-27 23:32:05,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:05,131 INFO L225 Difference]: With dead ends: 1034 [2024-11-27 23:32:05,131 INFO L226 Difference]: Without dead ends: 560 [2024-11-27 23:32:05,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:32:05,132 INFO L435 NwaCegarLoop]: 9 mSDtfsCounter, 142 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:05,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 22 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-27 23:32:05,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-11-27 23:32:05,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 560. [2024-11-27 23:32:05,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 559 states have (on average 1.2021466905187836) internal successors, (672), 559 states have internal predecessors, (672), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:05,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 672 transitions. [2024-11-27 23:32:05,155 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 672 transitions. Word has length 138 [2024-11-27 23:32:05,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:05,155 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 672 transitions. [2024-11-27 23:32:05,156 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:05,156 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 672 transitions. [2024-11-27 23:32:05,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2024-11-27 23:32:05,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:05,159 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:32:05,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 23:32:05,159 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:05,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:05,160 INFO L85 PathProgramCache]: Analyzing trace with hash 1693346688, now seen corresponding path program 1 times [2024-11-27 23:32:05,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:05,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410565339] [2024-11-27 23:32:05,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:05,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:05,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:05,358 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:05,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:05,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410565339] [2024-11-27 23:32:05,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410565339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:05,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:05,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 23:32:05,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008444273] [2024-11-27 23:32:05,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:05,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:05,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:05,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:05,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:32:05,361 INFO L87 Difference]: Start difference. First operand 560 states and 672 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:06,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:06,014 INFO L93 Difference]: Finished difference Result 1257 states and 1566 transitions. [2024-11-27 23:32:06,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:06,014 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 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 154 [2024-11-27 23:32:06,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:06,019 INFO L225 Difference]: With dead ends: 1257 [2024-11-27 23:32:06,019 INFO L226 Difference]: Without dead ends: 838 [2024-11-27 23:32:06,020 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 [2024-11-27 23:32:06,022 INFO L435 NwaCegarLoop]: 31 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 333 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 333 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:06,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 34 Invalid, 430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 333 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:32:06,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 838 states. [2024-11-27 23:32:06,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 838 to 838. [2024-11-27 23:32:06,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 838 states, 837 states have (on average 1.1995221027479093) internal successors, (1004), 837 states have internal predecessors, (1004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 838 states to 838 states and 1004 transitions. [2024-11-27 23:32:06,062 INFO L78 Accepts]: Start accepts. Automaton has 838 states and 1004 transitions. Word has length 154 [2024-11-27 23:32:06,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:06,063 INFO L471 AbstractCegarLoop]: Abstraction has 838 states and 1004 transitions. [2024-11-27 23:32:06,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:06,064 INFO L276 IsEmpty]: Start isEmpty. Operand 838 states and 1004 transitions. [2024-11-27 23:32:06,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-27 23:32:06,070 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:06,071 INFO L218 NwaCegarLoop]: trace histogram [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] [2024-11-27 23:32:06,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 23:32:06,071 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:06,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:06,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1887789682, now seen corresponding path program 1 times [2024-11-27 23:32:06,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:06,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681163637] [2024-11-27 23:32:06,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:06,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:06,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:06,323 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:06,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:06,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681163637] [2024-11-27 23:32:06,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681163637] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:06,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 23:32:06,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 23:32:06,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785628756] [2024-11-27 23:32:06,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:06,325 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:06,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:06,326 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:06,326 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:32:06,326 INFO L87 Difference]: Start difference. First operand 838 states and 1004 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:06,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:06,977 INFO L93 Difference]: Finished difference Result 1674 states and 2052 transitions. [2024-11-27 23:32:06,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:06,978 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 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 174 [2024-11-27 23:32:06,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:06,983 INFO L225 Difference]: With dead ends: 1674 [2024-11-27 23:32:06,984 INFO L226 Difference]: Without dead ends: 977 [2024-11-27 23:32:06,991 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 [2024-11-27 23:32:06,992 INFO L435 NwaCegarLoop]: 185 mSDtfsCounter, 92 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:06,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 190 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:32:06,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 977 states. [2024-11-27 23:32:07,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 977 to 977. [2024-11-27 23:32:07,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 977 states, 976 states have (on average 1.1454918032786885) internal successors, (1118), 976 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:07,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 977 states to 977 states and 1118 transitions. [2024-11-27 23:32:07,043 INFO L78 Accepts]: Start accepts. Automaton has 977 states and 1118 transitions. Word has length 174 [2024-11-27 23:32:07,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:07,044 INFO L471 AbstractCegarLoop]: Abstraction has 977 states and 1118 transitions. [2024-11-27 23:32:07,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:07,044 INFO L276 IsEmpty]: Start isEmpty. Operand 977 states and 1118 transitions. [2024-11-27 23:32:07,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-27 23:32:07,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:07,048 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, 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] [2024-11-27 23:32:07,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 23:32:07,049 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:07,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:07,049 INFO L85 PathProgramCache]: Analyzing trace with hash -2078202414, now seen corresponding path program 1 times [2024-11-27 23:32:07,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:07,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117912138] [2024-11-27 23:32:07,051 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:07,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:07,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:07,574 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-27 23:32:07,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:07,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117912138] [2024-11-27 23:32:07,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117912138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:07,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831269018] [2024-11-27 23:32:07,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:07,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:07,577 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:07,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:07,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:32:07,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:07,737 INFO L256 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:32:07,747 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:08,296 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-27 23:32:08,296 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:32:08,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831269018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:08,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:08,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-27 23:32:08,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046994266] [2024-11-27 23:32:08,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:08,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:08,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:08,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:08,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:32:08,298 INFO L87 Difference]: Start difference. First operand 977 states and 1118 transitions. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:08,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:08,989 INFO L93 Difference]: Finished difference Result 1535 states and 1759 transitions. [2024-11-27 23:32:08,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:08,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 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 247 [2024-11-27 23:32:08,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:08,996 INFO L225 Difference]: With dead ends: 1535 [2024-11-27 23:32:08,996 INFO L226 Difference]: Without dead ends: 1533 [2024-11-27 23:32:08,997 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-27 23:32:08,998 INFO L435 NwaCegarLoop]: 7 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:08,999 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 11 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:32:09,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2024-11-27 23:32:09,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1116. [2024-11-27 23:32:09,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1116 states, 1115 states have (on average 1.1713004484304932) internal successors, (1306), 1115 states have internal predecessors, (1306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:09,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1306 transitions. [2024-11-27 23:32:09,040 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1306 transitions. Word has length 247 [2024-11-27 23:32:09,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:09,041 INFO L471 AbstractCegarLoop]: Abstraction has 1116 states and 1306 transitions. [2024-11-27 23:32:09,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 2 states have internal predecessors, (116), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:09,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1306 transitions. [2024-11-27 23:32:09,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2024-11-27 23:32:09,048 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:09,048 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, 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] [2024-11-27 23:32:09,061 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:09,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-27 23:32:09,253 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:09,253 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1601492366, now seen corresponding path program 1 times [2024-11-27 23:32:09,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:09,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621866785] [2024-11-27 23:32:09,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:09,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:09,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:10,157 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 61 proven. 170 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 23:32:10,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:10,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621866785] [2024-11-27 23:32:10,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621866785] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:10,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85058569] [2024-11-27 23:32:10,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:10,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:10,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:10,160 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:10,185 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:32:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:10,338 INFO L256 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:32:10,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:10,509 INFO L134 CoverageAnalysis]: Checked inductivity of 231 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2024-11-27 23:32:10,509 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:32:10,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85058569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:10,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:10,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-27 23:32:10,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145895737] [2024-11-27 23:32:10,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:10,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:10,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:10,511 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:10,511 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:10,511 INFO L87 Difference]: Start difference. First operand 1116 states and 1306 transitions. Second operand has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:11,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:11,136 INFO L93 Difference]: Finished difference Result 2369 states and 2844 transitions. [2024-11-27 23:32:11,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:11,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 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 311 [2024-11-27 23:32:11,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:11,144 INFO L225 Difference]: With dead ends: 2369 [2024-11-27 23:32:11,145 INFO L226 Difference]: Without dead ends: 1394 [2024-11-27 23:32:11,146 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 311 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:11,147 INFO L435 NwaCegarLoop]: 220 mSDtfsCounter, 79 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:11,147 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 225 Invalid, 406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:32:11,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1394 states. [2024-11-27 23:32:11,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1394 to 1255. [2024-11-27 23:32:11,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1255 states, 1254 states have (on average 1.164274322169059) internal successors, (1460), 1254 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:11,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1460 transitions. [2024-11-27 23:32:11,189 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1460 transitions. Word has length 311 [2024-11-27 23:32:11,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:11,190 INFO L471 AbstractCegarLoop]: Abstraction has 1255 states and 1460 transitions. [2024-11-27 23:32:11,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.33333333333333) internal successors, (202), 3 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:11,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1460 transitions. [2024-11-27 23:32:11,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2024-11-27 23:32:11,197 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 23:32:11,198 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:11,209 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:11,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-27 23:32:11,399 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 23:32:11,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:11,399 INFO L85 PathProgramCache]: Analyzing trace with hash -554731653, now seen corresponding path program 1 times [2024-11-27 23:32:11,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 23:32:11,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058788666] [2024-11-27 23:32:11,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:11,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:11,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:12,077 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 86 proven. 96 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-27 23:32:12,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 23:32:12,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058788666] [2024-11-27 23:32:12,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058788666] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:12,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661849713] [2024-11-27 23:32:12,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:12,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:12,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:12,080 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:12,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 23:32:12,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:12,252 INFO L256 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:32:12,256 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:12,376 INFO L134 CoverageAnalysis]: Checked inductivity of 437 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-27 23:32:12,377 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 23:32:12,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661849713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 23:32:12,378 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 23:32:12,378 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-27 23:32:12,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581583319] [2024-11-27 23:32:12,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 23:32:12,379 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 23:32:12,379 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 23:32:12,380 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:12,380 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:12,380 INFO L87 Difference]: Start difference. First operand 1255 states and 1460 transitions. Second operand has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:13,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:13,043 INFO L93 Difference]: Finished difference Result 2645 states and 3076 transitions. [2024-11-27 23:32:13,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:13,044 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 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 362 [2024-11-27 23:32:13,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 23:32:13,045 INFO L225 Difference]: With dead ends: 2645 [2024-11-27 23:32:13,045 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 23:32:13,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 361 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-27 23:32:13,049 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 79 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-27 23:32:13,050 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 222 Invalid, 395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-27 23:32:13,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 23:32:13,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 23:32:13,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:13,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 23:32:13,051 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 362 [2024-11-27 23:32:13,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 23:32:13,052 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 23:32:13,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.333333333333336) internal successors, (181), 3 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 23:32:13,052 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 23:32:13,052 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 23:32:13,055 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 23:32:13,066 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 23:32:13,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-27 23:32:13,263 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:13,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 23:32:13,447 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 23:32:13,470 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:32:13 BoogieIcfgContainer [2024-11-27 23:32:13,470 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 23:32:13,470 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:32:13,471 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:32:13,471 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:32:13,471 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:31:59" (3/4) ... [2024-11-27 23:32:13,473 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 23:32:13,486 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-27 23:32:13,486 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 23:32:13,487 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 23:32:13,488 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 23:32:13,619 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:32:13,619 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 23:32:13,619 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:32:13,621 INFO L158 Benchmark]: Toolchain (without parser) took 16659.08ms. Allocated memory was 142.6MB in the beginning and 276.8MB in the end (delta: 134.2MB). Free memory was 115.6MB in the beginning and 97.2MB in the end (delta: 18.4MB). Peak memory consumption was 151.9MB. Max. memory is 16.1GB. [2024-11-27 23:32:13,622 INFO L158 Benchmark]: CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:32:13,623 INFO L158 Benchmark]: CACSL2BoogieTranslator took 660.96ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 88.6MB in the end (delta: 26.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:32:13,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.88ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 80.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:32:13,624 INFO L158 Benchmark]: Boogie Preprocessor took 89.27ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 71.2MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:32:13,624 INFO L158 Benchmark]: RCFGBuilder took 1625.77ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 48.3MB in the end (delta: 22.7MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2024-11-27 23:32:13,625 INFO L158 Benchmark]: TraceAbstraction took 14030.89ms. Allocated memory was 142.6MB in the beginning and 276.8MB in the end (delta: 134.2MB). Free memory was 47.6MB in the beginning and 108.3MB in the end (delta: -60.7MB). Peak memory consumption was 75.6MB. Max. memory is 16.1GB. [2024-11-27 23:32:13,625 INFO L158 Benchmark]: Witness Printer took 148.95ms. Allocated memory is still 276.8MB. Free memory was 105.3MB in the beginning and 97.2MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:32:13,628 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45ms. Allocated memory is still 117.4MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 146.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 660.96ms. Allocated memory is still 142.6MB. Free memory was 115.4MB in the beginning and 88.6MB in the end (delta: 26.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.88ms. Allocated memory is still 142.6MB. Free memory was 88.4MB in the beginning and 80.7MB in the end (delta: 7.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.27ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 71.2MB in the end (delta: 9.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1625.77ms. Allocated memory is still 142.6MB. Free memory was 70.9MB in the beginning and 48.3MB in the end (delta: 22.7MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * TraceAbstraction took 14030.89ms. Allocated memory was 142.6MB in the beginning and 276.8MB in the end (delta: 134.2MB). Free memory was 47.6MB in the beginning and 108.3MB in the end (delta: -60.7MB). Peak memory consumption was 75.6MB. Max. memory is 16.1GB. * Witness Printer took 148.95ms. Allocated memory is still 276.8MB. Free memory was 105.3MB in the beginning and 97.2MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. 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: 203]: 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, 206 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.7s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 798 SdHoareTripleChecker+Valid, 6.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 798 mSDsluCounter, 1116 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50 mSDsCounter, 528 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3593 IncrementalHoareTripleChecker+Invalid, 4121 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 528 mSolverCounterUnsat, 1066 mSDtfsCounter, 3593 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 947 GetRequests, 926 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1255occurred 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: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 556 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 2634 NumberOfCodeBlocks, 2634 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2622 ConstructedInterpolants, 0 QuantifiedInterpolants, 9861 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1248 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 1706/2022 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: 592]: Loop Invariant Derived loop invariant: ((((((((a19 <= 6) && (14 == a4)) && (a12 == 0)) || (((a19 == 9) && (14 == a4)) && (a12 == 0))) || ((((a19 <= 9) && (4 <= a10)) && (14 == a4)) && (a12 == 0))) || ((((a19 <= 9) && (14 == a4)) && (a10 == 2)) && (a12 == 0))) || (((a10 <= 0) && (14 == a4)) && (a12 == 0))) || (((a10 == 1) && (14 == a4)) && (a12 == 0))) RESULT: Ultimate proved your program to be correct! [2024-11-27 23:32:13,654 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70bc30e7-2f8f-44a9-a5c7-db23485b23a7/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE