./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem16_label23.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_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/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_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem16_label23.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/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_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/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 8d85db598b116be798c82f2dd8d1706b14592e07af324ce511eec8d5748ab1b3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 20:18:30,798 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 20:18:30,924 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-27 20:18:30,941 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 20:18:30,941 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 20:18:30,997 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 20:18:30,998 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 20:18:30,998 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 20:18:30,998 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 20:18:30,998 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 20:18:30,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-27 20:18:30,999 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-27 20:18:31,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 20:18:31,000 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 20:18:31,002 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 20:18:31,003 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 20:18:31,003 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-27 20:18:31,003 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 20:18:31,003 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 20:18:31,003 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 20:18:31,003 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 20:18:31,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-27 20:18:31,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-27 20:18:31,004 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-27 20:18:31,004 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 20:18:31,004 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 20:18:31,004 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 20:18:31,004 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 20:18:31,004 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-27 20:18:31,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:18:31,004 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:18:31,004 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:18:31,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:31,006 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 20:18:31,006 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 20:18:31,006 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-27 20:18:31,006 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-27 20:18:31,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:31,006 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 20:18:31,006 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-27 20:18:31,007 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-27 20:18:31,007 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-27 20:18:31,007 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-27 20:18:31,007 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-27 20:18:31,007 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-27 20:18:31,008 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-27 20:18:31,008 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-27 20:18:31,008 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-27 20:18:31,008 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_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/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 -> 8d85db598b116be798c82f2dd8d1706b14592e07af324ce511eec8d5748ab1b3 [2024-11-27 20:18:31,425 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 20:18:31,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 20:18:31,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 20:18:31,450 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 20:18:31,451 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 20:18:31,452 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/eca-rers2012/Problem16_label23.c [2024-11-27 20:18:35,262 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/data/ccc9d2186/13ec0c16026042e5aea1635e9fa15c65/FLAG54bb6a6ad [2024-11-27 20:18:35,756 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 20:18:35,760 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/sv-benchmarks/c/eca-rers2012/Problem16_label23.c [2024-11-27 20:18:35,803 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/data/ccc9d2186/13ec0c16026042e5aea1635e9fa15c65/FLAG54bb6a6ad [2024-11-27 20:18:35,847 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/data/ccc9d2186/13ec0c16026042e5aea1635e9fa15c65 [2024-11-27 20:18:35,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 20:18:35,852 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 20:18:35,854 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 20:18:35,854 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 20:18:35,860 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 20:18:35,861 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:18:35" (1/1) ... [2024-11-27 20:18:35,862 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f52d60d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:35, skipping insertion in model container [2024-11-27 20:18:35,862 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 08:18:35" (1/1) ... [2024-11-27 20:18:35,949 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 20:18:36,210 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_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/sv-benchmarks/c/eca-rers2012/Problem16_label23.c[3431,3444] [2024-11-27 20:18:36,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:18:36,803 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 20:18:36,838 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_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/sv-benchmarks/c/eca-rers2012/Problem16_label23.c[3431,3444] [2024-11-27 20:18:37,172 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 20:18:37,198 INFO L204 MainTranslator]: Completed translation [2024-11-27 20:18:37,199 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37 WrapperNode [2024-11-27 20:18:37,200 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 20:18:37,201 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 20:18:37,201 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 20:18:37,202 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 20:18:37,211 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,245 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,423 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1769 [2024-11-27 20:18:37,424 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 20:18:37,425 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 20:18:37,426 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 20:18:37,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 20:18:37,438 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,459 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,615 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 20:18:37,615 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,615 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,718 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,723 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,750 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,761 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,783 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 20:18:37,784 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 20:18:37,784 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 20:18:37,784 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 20:18:37,786 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (1/1) ... [2024-11-27 20:18:37,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-27 20:18:37,810 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:18:37,829 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-27 20:18:37,835 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-27 20:18:37,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 20:18:37,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 20:18:37,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 20:18:37,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 20:18:37,973 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 20:18:37,976 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 20:18:41,556 INFO L? ?]: Removed 276 outVars from TransFormulas that were not future-live. [2024-11-27 20:18:41,557 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 20:18:41,598 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 20:18:41,602 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-27 20:18:41,602 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:18:41 BoogieIcfgContainer [2024-11-27 20:18:41,603 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 20:18:41,605 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-27 20:18:41,605 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-27 20:18:41,618 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-27 20:18:41,618 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 08:18:35" (1/3) ... [2024-11-27 20:18:41,619 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdc8834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:18:41, skipping insertion in model container [2024-11-27 20:18:41,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 08:18:37" (2/3) ... [2024-11-27 20:18:41,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cdc8834 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 08:18:41, skipping insertion in model container [2024-11-27 20:18:41,620 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:18:41" (3/3) ... [2024-11-27 20:18:41,621 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem16_label23.c [2024-11-27 20:18:41,647 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-27 20:18:41,650 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem16_label23.c that has 1 procedures, 396 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-27 20:18:41,771 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-27 20:18:41,792 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;@11f67c27, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-27 20:18:41,794 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-27 20:18:41,804 INFO L276 IsEmpty]: Start isEmpty. Operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-27 20:18:41,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-27 20:18:41,815 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:41,816 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] [2024-11-27 20:18:41,817 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:41,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:41,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1843609039, now seen corresponding path program 1 times [2024-11-27 20:18:41,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:41,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41741788] [2024-11-27 20:18:41,836 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:41,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:42,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:42,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:42,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41741788] [2024-11-27 20:18:42,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41741788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:42,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:42,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:18:42,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303516829] [2024-11-27 20:18:42,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:42,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:18:42,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:42,369 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:18:42,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:42,374 INFO L87 Difference]: Start difference. First operand has 396 states, 394 states have (on average 1.8350253807106598) internal successors, (723), 395 states have internal predecessors, (723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 20:18:45,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:45,350 INFO L93 Difference]: Finished difference Result 1137 states and 2118 transitions. [2024-11-27 20:18:45,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:18:45,355 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 31 [2024-11-27 20:18:45,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:45,372 INFO L225 Difference]: With dead ends: 1137 [2024-11-27 20:18:45,373 INFO L226 Difference]: Without dead ends: 662 [2024-11-27 20:18:45,378 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 20:18:45,381 INFO L435 NwaCegarLoop]: 52 mSDtfsCounter, 355 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 1182 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 1182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:45,382 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 60 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 1182 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-27 20:18:45,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states. [2024-11-27 20:18:45,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 662. [2024-11-27 20:18:45,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 662 states, 661 states have (on average 1.7639939485627836) internal successors, (1166), 661 states have internal predecessors, (1166), 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 20:18:45,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 662 states to 662 states and 1166 transitions. [2024-11-27 20:18:45,501 INFO L78 Accepts]: Start accepts. Automaton has 662 states and 1166 transitions. Word has length 31 [2024-11-27 20:18:45,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:45,501 INFO L471 AbstractCegarLoop]: Abstraction has 662 states and 1166 transitions. [2024-11-27 20:18:45,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 2 states have internal predecessors, (31), 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 20:18:45,502 INFO L276 IsEmpty]: Start isEmpty. Operand 662 states and 1166 transitions. [2024-11-27 20:18:45,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-27 20:18:45,505 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:45,509 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:45,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-27 20:18:45,510 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:45,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:45,511 INFO L85 PathProgramCache]: Analyzing trace with hash 357086092, now seen corresponding path program 1 times [2024-11-27 20:18:45,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:45,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653500762] [2024-11-27 20:18:45,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:45,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:45,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:45,902 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:45,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:45,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653500762] [2024-11-27 20:18:45,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653500762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:45,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:45,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:18:45,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607139711] [2024-11-27 20:18:45,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:45,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:18:45,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:45,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:18:45,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:45,908 INFO L87 Difference]: Start difference. First operand 662 states and 1166 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 20:18:48,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:48,210 INFO L93 Difference]: Finished difference Result 1980 states and 3493 transitions. [2024-11-27 20:18:48,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:18:48,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 96 [2024-11-27 20:18:48,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:48,218 INFO L225 Difference]: With dead ends: 1980 [2024-11-27 20:18:48,218 INFO L226 Difference]: Without dead ends: 1320 [2024-11-27 20:18:48,221 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 20:18:48,222 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 344 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 882 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:48,222 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 77 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 882 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-27 20:18:48,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1320 states. [2024-11-27 20:18:48,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1320 to 1320. [2024-11-27 20:18:48,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1320 states, 1319 states have (on average 1.6656557998483699) internal successors, (2197), 1319 states have internal predecessors, (2197), 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 20:18:48,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1320 states to 1320 states and 2197 transitions. [2024-11-27 20:18:48,299 INFO L78 Accepts]: Start accepts. Automaton has 1320 states and 2197 transitions. Word has length 96 [2024-11-27 20:18:48,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:48,300 INFO L471 AbstractCegarLoop]: Abstraction has 1320 states and 2197 transitions. [2024-11-27 20:18:48,300 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 2 states have internal predecessors, (96), 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 20:18:48,301 INFO L276 IsEmpty]: Start isEmpty. Operand 1320 states and 2197 transitions. [2024-11-27 20:18:48,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-27 20:18:48,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:48,304 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:48,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-27 20:18:48,304 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:48,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:48,305 INFO L85 PathProgramCache]: Analyzing trace with hash -1175667850, now seen corresponding path program 1 times [2024-11-27 20:18:48,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:48,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704751182] [2024-11-27 20:18:48,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:48,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:48,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:48,773 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:48,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:48,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704751182] [2024-11-27 20:18:48,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704751182] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:48,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:48,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:18:48,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753653584] [2024-11-27 20:18:48,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:48,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:18:48,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:48,776 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:18:48,776 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:48,777 INFO L87 Difference]: Start difference. First operand 1320 states and 2197 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 20:18:51,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:51,377 INFO L93 Difference]: Finished difference Result 3625 states and 6017 transitions. [2024-11-27 20:18:51,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:18:51,378 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 99 [2024-11-27 20:18:51,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:51,389 INFO L225 Difference]: With dead ends: 3625 [2024-11-27 20:18:51,389 INFO L226 Difference]: Without dead ends: 2307 [2024-11-27 20:18:51,396 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 20:18:51,398 INFO L435 NwaCegarLoop]: 116 mSDtfsCounter, 282 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 939 mSolverCounterSat, 352 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 1291 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 352 IncrementalHoareTripleChecker+Valid, 939 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:51,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 120 Invalid, 1291 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [352 Valid, 939 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-27 20:18:51,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2307 states. [2024-11-27 20:18:51,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2307 to 2307. [2024-11-27 20:18:51,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2307 states, 2306 states have (on average 1.5923677363399826) internal successors, (3672), 2306 states have internal predecessors, (3672), 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 20:18:51,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2307 states to 2307 states and 3672 transitions. [2024-11-27 20:18:51,482 INFO L78 Accepts]: Start accepts. Automaton has 2307 states and 3672 transitions. Word has length 99 [2024-11-27 20:18:51,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:51,484 INFO L471 AbstractCegarLoop]: Abstraction has 2307 states and 3672 transitions. [2024-11-27 20:18:51,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 2 states have internal predecessors, (99), 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 20:18:51,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2307 states and 3672 transitions. [2024-11-27 20:18:51,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-27 20:18:51,491 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:51,491 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:51,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-27 20:18:51,492 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:51,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:51,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1706439456, now seen corresponding path program 1 times [2024-11-27 20:18:51,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:51,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538403216] [2024-11-27 20:18:51,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:51,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:51,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:51,864 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:18:51,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:51,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538403216] [2024-11-27 20:18:51,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538403216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:51,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:51,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:18:51,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273069289] [2024-11-27 20:18:51,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:51,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:18:51,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:51,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:18:51,867 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:18:51,868 INFO L87 Difference]: Start difference. First operand 2307 states and 3672 transitions. Second operand has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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 20:18:55,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:55,543 INFO L93 Difference]: Finished difference Result 6257 states and 9781 transitions. [2024-11-27 20:18:55,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:18:55,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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 104 [2024-11-27 20:18:55,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:55,560 INFO L225 Difference]: With dead ends: 6257 [2024-11-27 20:18:55,560 INFO L226 Difference]: Without dead ends: 3952 [2024-11-27 20:18:55,563 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-27 20:18:55,564 INFO L435 NwaCegarLoop]: 178 mSDtfsCounter, 886 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 2131 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 886 SdHoareTripleChecker+Valid, 191 SdHoareTripleChecker+Invalid, 2386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 2131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:55,565 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [886 Valid, 191 Invalid, 2386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 2131 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-27 20:18:55,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3952 states. [2024-11-27 20:18:55,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3952 to 3952. [2024-11-27 20:18:55,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3952 states, 3951 states have (on average 1.4312832194381169) internal successors, (5655), 3951 states have internal predecessors, (5655), 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 20:18:55,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3952 states to 3952 states and 5655 transitions. [2024-11-27 20:18:55,702 INFO L78 Accepts]: Start accepts. Automaton has 3952 states and 5655 transitions. Word has length 104 [2024-11-27 20:18:55,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:55,702 INFO L471 AbstractCegarLoop]: Abstraction has 3952 states and 5655 transitions. [2024-11-27 20:18:55,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.0) internal successors, (104), 3 states have internal predecessors, (104), 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 20:18:55,703 INFO L276 IsEmpty]: Start isEmpty. Operand 3952 states and 5655 transitions. [2024-11-27 20:18:55,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-27 20:18:55,705 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:55,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:18:55,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-27 20:18:55,706 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:55,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:55,707 INFO L85 PathProgramCache]: Analyzing trace with hash 478482531, now seen corresponding path program 1 times [2024-11-27 20:18:55,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:55,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264183255] [2024-11-27 20:18:55,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:55,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:55,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:56,010 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-27 20:18:56,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:56,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264183255] [2024-11-27 20:18:56,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264183255] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:56,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:56,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:18:56,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380668510] [2024-11-27 20:18:56,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:56,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:18:56,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:56,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:18:56,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:56,012 INFO L87 Difference]: Start difference. First operand 3952 states and 5655 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 20:18:58,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:18:58,251 INFO L93 Difference]: Finished difference Result 10534 states and 15398 transitions. [2024-11-27 20:18:58,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:18:58,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 118 [2024-11-27 20:18:58,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:18:58,277 INFO L225 Difference]: With dead ends: 10534 [2024-11-27 20:18:58,278 INFO L226 Difference]: Without dead ends: 6913 [2024-11-27 20:18:58,283 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 20:18:58,284 INFO L435 NwaCegarLoop]: 218 mSDtfsCounter, 265 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 390 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 1203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 390 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:18:58,284 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 223 Invalid, 1203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [390 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-27 20:18:58,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6913 states. [2024-11-27 20:18:58,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6913 to 6913. [2024-11-27 20:18:58,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6913 states, 6912 states have (on average 1.3081597222222223) internal successors, (9042), 6912 states have internal predecessors, (9042), 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 20:18:58,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6913 states to 6913 states and 9042 transitions. [2024-11-27 20:18:58,449 INFO L78 Accepts]: Start accepts. Automaton has 6913 states and 9042 transitions. Word has length 118 [2024-11-27 20:18:58,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:18:58,450 INFO L471 AbstractCegarLoop]: Abstraction has 6913 states and 9042 transitions. [2024-11-27 20:18:58,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 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 20:18:58,451 INFO L276 IsEmpty]: Start isEmpty. Operand 6913 states and 9042 transitions. [2024-11-27 20:18:58,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2024-11-27 20:18:58,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:18:58,458 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:18:58,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-27 20:18:58,459 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:18:58,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:18:58,460 INFO L85 PathProgramCache]: Analyzing trace with hash 888355746, now seen corresponding path program 1 times [2024-11-27 20:18:58,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:18:58,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147333329] [2024-11-27 20:18:58,460 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:18:58,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:18:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:18:58,881 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 192 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2024-11-27 20:18:58,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:18:58,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147333329] [2024-11-27 20:18:58,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147333329] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:18:58,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:18:58,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-27 20:18:58,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535243464] [2024-11-27 20:18:58,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:18:58,883 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:18:58,883 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:18:58,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:18:58,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:18:58,883 INFO L87 Difference]: Start difference. First operand 6913 states and 9042 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 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 20:19:00,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:00,819 INFO L93 Difference]: Finished difference Result 16456 states and 21659 transitions. [2024-11-27 20:19:00,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:00,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 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 265 [2024-11-27 20:19:00,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:00,845 INFO L225 Difference]: With dead ends: 16456 [2024-11-27 20:19:00,845 INFO L226 Difference]: Without dead ends: 9874 [2024-11-27 20:19:00,853 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 20:19:00,854 INFO L435 NwaCegarLoop]: 151 mSDtfsCounter, 359 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:00,855 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 155 Invalid, 1118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-27 20:19:00,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9874 states. [2024-11-27 20:19:01,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9874 to 8229. [2024-11-27 20:19:01,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8229 states, 8228 states have (on average 1.2035731648031114) internal successors, (9903), 8228 states have internal predecessors, (9903), 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 20:19:01,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8229 states to 8229 states and 9903 transitions. [2024-11-27 20:19:01,102 INFO L78 Accepts]: Start accepts. Automaton has 8229 states and 9903 transitions. Word has length 265 [2024-11-27 20:19:01,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:01,103 INFO L471 AbstractCegarLoop]: Abstraction has 8229 states and 9903 transitions. [2024-11-27 20:19:01,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 2 states have internal predecessors, (160), 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 20:19:01,104 INFO L276 IsEmpty]: Start isEmpty. Operand 8229 states and 9903 transitions. [2024-11-27 20:19:01,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-27 20:19:01,111 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:01,111 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:19:01,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-27 20:19:01,112 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:01,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:01,113 INFO L85 PathProgramCache]: Analyzing trace with hash 202313507, now seen corresponding path program 1 times [2024-11-27 20:19:01,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:01,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805591979] [2024-11-27 20:19:01,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:01,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:02,187 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-27 20:19:02,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:02,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805591979] [2024-11-27 20:19:02,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805591979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:02,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:02,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-27 20:19:02,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109552635] [2024-11-27 20:19:02,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:02,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-27 20:19:02,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:02,191 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 20:19:02,192 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-27 20:19:02,192 INFO L87 Difference]: Start difference. First operand 8229 states and 9903 transitions. Second operand has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 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 20:19:05,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:05,200 INFO L93 Difference]: Finished difference Result 15717 states and 19011 transitions. [2024-11-27 20:19:05,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-27 20:19:05,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 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 353 [2024-11-27 20:19:05,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:05,223 INFO L225 Difference]: With dead ends: 15717 [2024-11-27 20:19:05,223 INFO L226 Difference]: Without dead ends: 7900 [2024-11-27 20:19:05,230 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 20:19:05,231 INFO L435 NwaCegarLoop]: 263 mSDtfsCounter, 308 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1871 mSolverCounterSat, 351 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 2222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 351 IncrementalHoareTripleChecker+Valid, 1871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:05,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 291 Invalid, 2222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [351 Valid, 1871 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-27 20:19:05,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7900 states. [2024-11-27 20:19:05,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7900 to 7900. [2024-11-27 20:19:05,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7900 states, 7899 states have (on average 1.0845676667932649) internal successors, (8567), 7899 states have internal predecessors, (8567), 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 20:19:05,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7900 states to 7900 states and 8567 transitions. [2024-11-27 20:19:05,363 INFO L78 Accepts]: Start accepts. Automaton has 7900 states and 8567 transitions. Word has length 353 [2024-11-27 20:19:05,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:05,363 INFO L471 AbstractCegarLoop]: Abstraction has 7900 states and 8567 transitions. [2024-11-27 20:19:05,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 50.42857142857143) internal successors, (353), 6 states have internal predecessors, (353), 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 20:19:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 7900 states and 8567 transitions. [2024-11-27 20:19:05,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2024-11-27 20:19:05,370 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:05,371 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:19:05,372 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-27 20:19:05,372 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:05,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:05,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1300314316, now seen corresponding path program 1 times [2024-11-27 20:19:05,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:05,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400836459] [2024-11-27 20:19:05,373 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:05,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:05,912 INFO L134 CoverageAnalysis]: Checked inductivity of 152 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-27 20:19:05,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:05,913 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400836459] [2024-11-27 20:19:05,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400836459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:05,913 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:05,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:05,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872978382] [2024-11-27 20:19:05,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:05,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:05,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:05,914 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:05,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:05,915 INFO L87 Difference]: Start difference. First operand 7900 states and 8567 transitions. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 20:19:07,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:07,442 INFO L93 Difference]: Finished difference Result 18101 states and 19824 transitions. [2024-11-27 20:19:07,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:07,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 370 [2024-11-27 20:19:07,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:07,478 INFO L225 Difference]: With dead ends: 18101 [2024-11-27 20:19:07,478 INFO L226 Difference]: Without dead ends: 10861 [2024-11-27 20:19:07,485 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 20:19:07,487 INFO L435 NwaCegarLoop]: 399 mSDtfsCounter, 304 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:07,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 405 Invalid, 882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 20:19:07,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2024-11-27 20:19:07,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10861. [2024-11-27 20:19:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10861 states, 10860 states have (on average 1.0780847145488028) internal successors, (11708), 10860 states have internal predecessors, (11708), 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 20:19:07,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10861 states to 10861 states and 11708 transitions. [2024-11-27 20:19:07,694 INFO L78 Accepts]: Start accepts. Automaton has 10861 states and 11708 transitions. Word has length 370 [2024-11-27 20:19:07,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:07,695 INFO L471 AbstractCegarLoop]: Abstraction has 10861 states and 11708 transitions. [2024-11-27 20:19:07,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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 20:19:07,697 INFO L276 IsEmpty]: Start isEmpty. Operand 10861 states and 11708 transitions. [2024-11-27 20:19:07,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2024-11-27 20:19:07,714 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:07,714 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:07,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-27 20:19:07,715 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:07,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:07,717 INFO L85 PathProgramCache]: Analyzing trace with hash -412346964, now seen corresponding path program 1 times [2024-11-27 20:19:07,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:07,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022781235] [2024-11-27 20:19:07,717 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:07,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:07,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:08,549 INFO L134 CoverageAnalysis]: Checked inductivity of 523 backedges. 494 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-27 20:19:08,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:08,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022781235] [2024-11-27 20:19:08,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022781235] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:08,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:08,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:08,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335292383] [2024-11-27 20:19:08,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:08,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:08,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:08,556 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:08,556 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:08,556 INFO L87 Difference]: Start difference. First operand 10861 states and 11708 transitions. Second operand has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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 20:19:10,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:10,022 INFO L93 Difference]: Finished difference Result 21062 states and 22744 transitions. [2024-11-27 20:19:10,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:10,023 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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 565 [2024-11-27 20:19:10,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:10,048 INFO L225 Difference]: With dead ends: 21062 [2024-11-27 20:19:10,049 INFO L226 Difference]: Without dead ends: 10861 [2024-11-27 20:19:10,057 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 20:19:10,058 INFO L435 NwaCegarLoop]: 56 mSDtfsCounter, 190 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:10,059 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 60 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-27 20:19:10,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2024-11-27 20:19:10,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10861. [2024-11-27 20:19:10,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10861 states, 10860 states have (on average 1.0667587476979743) internal successors, (11585), 10860 states have internal predecessors, (11585), 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 20:19:10,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10861 states to 10861 states and 11585 transitions. [2024-11-27 20:19:10,252 INFO L78 Accepts]: Start accepts. Automaton has 10861 states and 11585 transitions. Word has length 565 [2024-11-27 20:19:10,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:10,254 INFO L471 AbstractCegarLoop]: Abstraction has 10861 states and 11585 transitions. [2024-11-27 20:19:10,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 179.0) internal successors, (537), 3 states have internal predecessors, (537), 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 20:19:10,254 INFO L276 IsEmpty]: Start isEmpty. Operand 10861 states and 11585 transitions. [2024-11-27 20:19:10,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2024-11-27 20:19:10,279 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:10,279 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:19:10,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-27 20:19:10,280 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:10,282 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:10,286 INFO L85 PathProgramCache]: Analyzing trace with hash 1358447523, now seen corresponding path program 1 times [2024-11-27 20:19:10,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:10,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384346903] [2024-11-27 20:19:10,286 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:10,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:11,865 INFO L134 CoverageAnalysis]: Checked inductivity of 599 backedges. 570 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-27 20:19:11,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:11,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384346903] [2024-11-27 20:19:11,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384346903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:11,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:11,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:11,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767152462] [2024-11-27 20:19:11,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:11,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:19:11,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:11,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:19:11,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:19:11,871 INFO L87 Difference]: Start difference. First operand 10861 states and 11585 transitions. Second operand has 4 states, 4 states have (on average 155.75) internal successors, (623), 3 states have internal predecessors, (623), 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 20:19:13,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:13,960 INFO L93 Difference]: Finished difference Result 21062 states and 22500 transitions. [2024-11-27 20:19:13,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-27 20:19:13,961 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 155.75) internal successors, (623), 3 states have internal predecessors, (623), 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 651 [2024-11-27 20:19:13,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:13,986 INFO L225 Difference]: With dead ends: 21062 [2024-11-27 20:19:13,987 INFO L226 Difference]: Without dead ends: 10861 [2024-11-27 20:19:13,995 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:19:13,996 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 270 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 1198 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 1198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:13,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 86 Invalid, 1289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 1198 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-27 20:19:14,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10861 states. [2024-11-27 20:19:14,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10861 to 10861. [2024-11-27 20:19:14,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10861 states, 10860 states have (on average 1.0629834254143646) internal successors, (11544), 10860 states have internal predecessors, (11544), 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 20:19:14,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10861 states to 10861 states and 11544 transitions. [2024-11-27 20:19:14,145 INFO L78 Accepts]: Start accepts. Automaton has 10861 states and 11544 transitions. Word has length 651 [2024-11-27 20:19:14,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:14,146 INFO L471 AbstractCegarLoop]: Abstraction has 10861 states and 11544 transitions. [2024-11-27 20:19:14,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 155.75) internal successors, (623), 3 states have internal predecessors, (623), 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 20:19:14,147 INFO L276 IsEmpty]: Start isEmpty. Operand 10861 states and 11544 transitions. [2024-11-27 20:19:14,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2024-11-27 20:19:14,158 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:14,158 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:19:14,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-27 20:19:14,159 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:14,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:14,160 INFO L85 PathProgramCache]: Analyzing trace with hash 661033144, now seen corresponding path program 1 times [2024-11-27 20:19:14,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:14,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663485588] [2024-11-27 20:19:14,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:14,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:14,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:15,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 863 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-27 20:19:15,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:15,277 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663485588] [2024-11-27 20:19:15,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663485588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:15,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:15,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:15,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1838409830] [2024-11-27 20:19:15,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:15,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:15,279 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:15,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:15,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:15,280 INFO L87 Difference]: Start difference. First operand 10861 states and 11544 transitions. Second operand has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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 20:19:16,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:16,373 INFO L93 Difference]: Finished difference Result 24352 states and 25917 transitions. [2024-11-27 20:19:16,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:16,374 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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 701 [2024-11-27 20:19:16,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:16,404 INFO L225 Difference]: With dead ends: 24352 [2024-11-27 20:19:16,405 INFO L226 Difference]: Without dead ends: 14151 [2024-11-27 20:19:16,413 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 20:19:16,414 INFO L435 NwaCegarLoop]: 34 mSDtfsCounter, 224 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 769 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 855 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 769 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:16,414 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 38 Invalid, 855 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 769 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-27 20:19:16,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14151 states. [2024-11-27 20:19:16,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14151 to 13493. [2024-11-27 20:19:16,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13493 states, 13492 states have (on average 1.0578120367625259) internal successors, (14272), 13492 states have internal predecessors, (14272), 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 20:19:16,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 14272 transitions. [2024-11-27 20:19:16,670 INFO L78 Accepts]: Start accepts. Automaton has 13493 states and 14272 transitions. Word has length 701 [2024-11-27 20:19:16,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:16,672 INFO L471 AbstractCegarLoop]: Abstraction has 13493 states and 14272 transitions. [2024-11-27 20:19:16,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.33333333333334) internal successors, (514), 3 states have internal predecessors, (514), 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 20:19:16,673 INFO L276 IsEmpty]: Start isEmpty. Operand 13493 states and 14272 transitions. [2024-11-27 20:19:16,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2024-11-27 20:19:16,690 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:16,691 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:19:16,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-27 20:19:16,691 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:16,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:16,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1461292433, now seen corresponding path program 1 times [2024-11-27 20:19:16,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:16,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262090370] [2024-11-27 20:19:16,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:16,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:16,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:17,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1217 backedges. 873 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-11-27 20:19:17,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:17,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262090370] [2024-11-27 20:19:17,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262090370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:17,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:17,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:17,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775332796] [2024-11-27 20:19:17,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:17,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-27 20:19:17,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:17,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-27 20:19:17,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:19:17,944 INFO L87 Difference]: Start difference. First operand 13493 states and 14272 transitions. Second operand has 4 states, 4 states have (on average 134.5) internal successors, (538), 3 states have internal predecessors, (538), 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 20:19:19,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:19,151 INFO L93 Difference]: Finished difference Result 26326 states and 27875 transitions. [2024-11-27 20:19:19,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:19,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 134.5) internal successors, (538), 3 states have internal predecessors, (538), 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 755 [2024-11-27 20:19:19,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:19,175 INFO L225 Difference]: With dead ends: 26326 [2024-11-27 20:19:19,176 INFO L226 Difference]: Without dead ends: 13493 [2024-11-27 20:19:19,186 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-27 20:19:19,187 INFO L435 NwaCegarLoop]: 108 mSDtfsCounter, 173 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 1189 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:19,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 118 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1189 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-27 20:19:19,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13493 states. [2024-11-27 20:19:19,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13493 to 13493. [2024-11-27 20:19:19,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13493 states, 13492 states have (on average 1.0575896827749778) internal successors, (14269), 13492 states have internal predecessors, (14269), 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 20:19:19,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13493 states to 13493 states and 14269 transitions. [2024-11-27 20:19:19,422 INFO L78 Accepts]: Start accepts. Automaton has 13493 states and 14269 transitions. Word has length 755 [2024-11-27 20:19:19,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:19,423 INFO L471 AbstractCegarLoop]: Abstraction has 13493 states and 14269 transitions. [2024-11-27 20:19:19,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 134.5) internal successors, (538), 3 states have internal predecessors, (538), 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 20:19:19,424 INFO L276 IsEmpty]: Start isEmpty. Operand 13493 states and 14269 transitions. [2024-11-27 20:19:19,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2024-11-27 20:19:19,434 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:19,434 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-27 20:19:19,434 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-27 20:19:19,435 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:19,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:19,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1459862461, now seen corresponding path program 1 times [2024-11-27 20:19:19,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:19,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259756153] [2024-11-27 20:19:19,436 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:19,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:19,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:20,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1278 backedges. 614 proven. 0 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2024-11-27 20:19:20,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:20,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259756153] [2024-11-27 20:19:20,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259756153] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:20,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:20,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:20,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865154654] [2024-11-27 20:19:20,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:20,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:20,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:20,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:20,204 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:20,204 INFO L87 Difference]: Start difference. First operand 13493 states and 14269 transitions. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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 20:19:21,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:21,219 INFO L93 Difference]: Finished difference Result 28958 states and 30688 transitions. [2024-11-27 20:19:21,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:21,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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 816 [2024-11-27 20:19:21,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:21,248 INFO L225 Difference]: With dead ends: 28958 [2024-11-27 20:19:21,249 INFO L226 Difference]: Without dead ends: 16125 [2024-11-27 20:19:21,257 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 20:19:21,258 INFO L435 NwaCegarLoop]: 437 mSDtfsCounter, 192 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:21,258 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 443 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:19:21,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16125 states. [2024-11-27 20:19:21,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16125 to 15796. [2024-11-27 20:19:21,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15796 states, 15795 states have (on average 1.0549540993985438) internal successors, (16663), 15795 states have internal predecessors, (16663), 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 20:19:21,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16663 transitions. [2024-11-27 20:19:21,441 INFO L78 Accepts]: Start accepts. Automaton has 15796 states and 16663 transitions. Word has length 816 [2024-11-27 20:19:21,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:21,442 INFO L471 AbstractCegarLoop]: Abstraction has 15796 states and 16663 transitions. [2024-11-27 20:19:21,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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 20:19:21,443 INFO L276 IsEmpty]: Start isEmpty. Operand 15796 states and 16663 transitions. [2024-11-27 20:19:21,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 847 [2024-11-27 20:19:21,453 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:21,454 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 20:19:21,454 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-27 20:19:21,454 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:21,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:21,455 INFO L85 PathProgramCache]: Analyzing trace with hash 579852588, now seen corresponding path program 1 times [2024-11-27 20:19:21,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:21,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398370775] [2024-11-27 20:19:21,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:21,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:21,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:23,336 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 908 proven. 258 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-27 20:19:23,336 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:23,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398370775] [2024-11-27 20:19:23,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398370775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:19:23,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421805048] [2024-11-27 20:19:23,337 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:23,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:23,337 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:23,342 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:23,343 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 20:19:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:23,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 1008 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:19:23,756 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:23,904 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 1171 trivial. 0 not checked. [2024-11-27 20:19:23,904 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:19:23,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421805048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:23,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:19:23,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 20:19:23,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026979901] [2024-11-27 20:19:23,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:23,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:23,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:23,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:23,908 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:19:23,908 INFO L87 Difference]: Start difference. First operand 15796 states and 16663 transitions. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 20:19:24,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:24,937 INFO L93 Difference]: Finished difference Result 30932 states and 32660 transitions. [2024-11-27 20:19:24,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:24,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 846 [2024-11-27 20:19:24,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:24,952 INFO L225 Difference]: With dead ends: 30932 [2024-11-27 20:19:24,952 INFO L226 Difference]: Without dead ends: 15796 [2024-11-27 20:19:24,961 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 851 GetRequests, 845 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:19:24,962 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 336 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 786 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 786 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:24,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 377 Invalid, 804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 786 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:19:24,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15796 states. [2024-11-27 20:19:25,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 15796. [2024-11-27 20:19:25,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15796 states, 15795 states have (on average 1.0465337132003798) internal successors, (16530), 15795 states have internal predecessors, (16530), 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 20:19:25,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15796 states to 15796 states and 16530 transitions. [2024-11-27 20:19:25,199 INFO L78 Accepts]: Start accepts. Automaton has 15796 states and 16530 transitions. Word has length 846 [2024-11-27 20:19:25,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:25,200 INFO L471 AbstractCegarLoop]: Abstraction has 15796 states and 16530 transitions. [2024-11-27 20:19:25,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 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 20:19:25,201 INFO L276 IsEmpty]: Start isEmpty. Operand 15796 states and 16530 transitions. [2024-11-27 20:19:25,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 923 [2024-11-27 20:19:25,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:25,214 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:25,226 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-27 20:19:25,414 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-27 20:19:25,415 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:25,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:25,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1545547188, now seen corresponding path program 1 times [2024-11-27 20:19:25,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:25,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792642815] [2024-11-27 20:19:25,416 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:25,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:25,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:26,194 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 988 proven. 0 refuted. 0 times theorem prover too weak. 507 trivial. 0 not checked. [2024-11-27 20:19:26,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:26,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792642815] [2024-11-27 20:19:26,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792642815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:26,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:26,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:26,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870897134] [2024-11-27 20:19:26,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:26,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:26,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:26,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:26,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:26,198 INFO L87 Difference]: Start difference. First operand 15796 states and 16530 transitions. Second operand has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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 20:19:27,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:27,190 INFO L93 Difference]: Finished difference Result 30932 states and 32394 transitions. [2024-11-27 20:19:27,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:27,190 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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 922 [2024-11-27 20:19:27,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:27,205 INFO L225 Difference]: With dead ends: 30932 [2024-11-27 20:19:27,205 INFO L226 Difference]: Without dead ends: 15796 [2024-11-27 20:19:27,214 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 20:19:27,215 INFO L435 NwaCegarLoop]: 421 mSDtfsCounter, 109 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 427 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:27,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 427 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:19:27,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15796 states. [2024-11-27 20:19:27,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 15467. [2024-11-27 20:19:27,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15467 states, 15466 states have (on average 1.0435148066727014) internal successors, (16139), 15466 states have internal predecessors, (16139), 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 20:19:27,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15467 states to 15467 states and 16139 transitions. [2024-11-27 20:19:27,468 INFO L78 Accepts]: Start accepts. Automaton has 15467 states and 16139 transitions. Word has length 922 [2024-11-27 20:19:27,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:27,469 INFO L471 AbstractCegarLoop]: Abstraction has 15467 states and 16139 transitions. [2024-11-27 20:19:27,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 171.0) internal successors, (513), 3 states have internal predecessors, (513), 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 20:19:27,469 INFO L276 IsEmpty]: Start isEmpty. Operand 15467 states and 16139 transitions. [2024-11-27 20:19:27,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 956 [2024-11-27 20:19:27,480 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:27,480 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:27,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-27 20:19:27,481 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:27,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:27,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1121139085, now seen corresponding path program 1 times [2024-11-27 20:19:27,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:27,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706881752] [2024-11-27 20:19:27,482 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:27,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:27,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:29,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 1047 proven. 258 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-27 20:19:29,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:29,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706881752] [2024-11-27 20:19:29,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706881752] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:19:29,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1238691907] [2024-11-27 20:19:29,252 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:29,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:29,252 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:29,254 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:29,257 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 20:19:29,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:29,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 1121 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:19:29,614 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:29,807 INFO L134 CoverageAnalysis]: Checked inductivity of 1431 backedges. 386 proven. 0 refuted. 0 times theorem prover too weak. 1045 trivial. 0 not checked. [2024-11-27 20:19:29,807 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:19:29,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1238691907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:29,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:19:29,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-27 20:19:29,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121870929] [2024-11-27 20:19:29,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:29,809 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:29,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:29,810 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:29,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:19:29,810 INFO L87 Difference]: Start difference. First operand 15467 states and 16139 transitions. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 20:19:30,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:30,847 INFO L93 Difference]: Finished difference Result 32248 states and 33628 transitions. [2024-11-27 20:19:30,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:30,848 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 955 [2024-11-27 20:19:30,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:30,864 INFO L225 Difference]: With dead ends: 32248 [2024-11-27 20:19:30,864 INFO L226 Difference]: Without dead ends: 15467 [2024-11-27 20:19:30,873 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 960 GetRequests, 954 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-27 20:19:30,874 INFO L435 NwaCegarLoop]: 424 mSDtfsCounter, 269 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 269 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:30,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [269 Valid, 430 Invalid, 832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:19:30,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15467 states. [2024-11-27 20:19:31,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15467 to 15467. [2024-11-27 20:19:31,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15467 states, 15466 states have (on average 1.0293547135652399) internal successors, (15920), 15466 states have internal predecessors, (15920), 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 20:19:31,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15467 states to 15467 states and 15920 transitions. [2024-11-27 20:19:31,046 INFO L78 Accepts]: Start accepts. Automaton has 15467 states and 15920 transitions. Word has length 955 [2024-11-27 20:19:31,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:31,047 INFO L471 AbstractCegarLoop]: Abstraction has 15467 states and 15920 transitions. [2024-11-27 20:19:31,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 20:19:31,047 INFO L276 IsEmpty]: Start isEmpty. Operand 15467 states and 15920 transitions. [2024-11-27 20:19:31,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1207 [2024-11-27 20:19:31,066 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:31,067 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 20:19:31,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-27 20:19:31,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-27 20:19:31,267 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:31,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:31,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1551524520, now seen corresponding path program 1 times [2024-11-27 20:19:31,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:31,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473080503] [2024-11-27 20:19:31,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:31,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:31,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:32,006 INFO L134 CoverageAnalysis]: Checked inductivity of 3109 backedges. 2119 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2024-11-27 20:19:32,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:32,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473080503] [2024-11-27 20:19:32,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473080503] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:32,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:32,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:32,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556112688] [2024-11-27 20:19:32,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:32,008 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:32,008 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:32,009 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:32,009 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:32,009 INFO L87 Difference]: Start difference. First operand 15467 states and 15920 transitions. Second operand has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 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 20:19:32,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:32,990 INFO L93 Difference]: Finished difference Result 30274 states and 31174 transitions. [2024-11-27 20:19:32,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:32,991 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 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 1206 [2024-11-27 20:19:32,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:33,002 INFO L225 Difference]: With dead ends: 30274 [2024-11-27 20:19:33,002 INFO L226 Difference]: Without dead ends: 15467 [2024-11-27 20:19:33,011 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 20:19:33,011 INFO L435 NwaCegarLoop]: 422 mSDtfsCounter, 220 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 750 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 428 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:33,011 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 428 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 750 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:19:33,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15467 states. [2024-11-27 20:19:33,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15467 to 14809. [2024-11-27 20:19:33,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14809 states, 14808 states have (on average 1.0243787142085359) internal successors, (15169), 14808 states have internal predecessors, (15169), 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 20:19:33,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14809 states to 14809 states and 15169 transitions. [2024-11-27 20:19:33,130 INFO L78 Accepts]: Start accepts. Automaton has 14809 states and 15169 transitions. Word has length 1206 [2024-11-27 20:19:33,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:33,131 INFO L471 AbstractCegarLoop]: Abstraction has 14809 states and 15169 transitions. [2024-11-27 20:19:33,131 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 200.33333333333334) internal successors, (601), 3 states have internal predecessors, (601), 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 20:19:33,131 INFO L276 IsEmpty]: Start isEmpty. Operand 14809 states and 15169 transitions. [2024-11-27 20:19:33,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1208 [2024-11-27 20:19:33,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:33,143 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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 20:19:33,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-27 20:19:33,143 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:33,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:33,144 INFO L85 PathProgramCache]: Analyzing trace with hash 748345937, now seen corresponding path program 1 times [2024-11-27 20:19:33,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:33,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82119103] [2024-11-27 20:19:33,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:33,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:33,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3116 backedges. 704 proven. 0 refuted. 0 times theorem prover too weak. 2412 trivial. 0 not checked. [2024-11-27 20:19:33,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:33,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [82119103] [2024-11-27 20:19:33,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [82119103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:33,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-27 20:19:33,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-27 20:19:33,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503406506] [2024-11-27 20:19:33,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:33,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:33,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:33,848 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:33,848 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 20:19:33,848 INFO L87 Difference]: Start difference. First operand 14809 states and 15169 transitions. Second operand has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 20:19:34,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:34,794 INFO L93 Difference]: Finished difference Result 32248 states and 33093 transitions. [2024-11-27 20:19:34,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:34,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 1207 [2024-11-27 20:19:34,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:34,806 INFO L225 Difference]: With dead ends: 32248 [2024-11-27 20:19:34,806 INFO L226 Difference]: Without dead ends: 15796 [2024-11-27 20:19:34,812 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 20:19:34,813 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 274 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:34,813 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 411 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [47 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-27 20:19:34,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15796 states. [2024-11-27 20:19:34,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15796 to 13822. [2024-11-27 20:19:34,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13822 states, 13821 states have (on average 1.0228637580493452) internal successors, (14137), 13821 states have internal predecessors, (14137), 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 20:19:34,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13822 states to 13822 states and 14137 transitions. [2024-11-27 20:19:34,923 INFO L78 Accepts]: Start accepts. Automaton has 13822 states and 14137 transitions. Word has length 1207 [2024-11-27 20:19:34,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:34,925 INFO L471 AbstractCegarLoop]: Abstraction has 13822 states and 14137 transitions. [2024-11-27 20:19:34,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.33333333333333) internal successors, (352), 3 states have internal predecessors, (352), 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 20:19:34,925 INFO L276 IsEmpty]: Start isEmpty. Operand 13822 states and 14137 transitions. [2024-11-27 20:19:34,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1336 [2024-11-27 20:19:34,939 INFO L210 NwaCegarLoop]: Found error trace [2024-11-27 20:19:34,939 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-27 20:19:34,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-27 20:19:34,939 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-27 20:19:34,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 20:19:34,940 INFO L85 PathProgramCache]: Analyzing trace with hash -260878054, now seen corresponding path program 1 times [2024-11-27 20:19:34,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-27 20:19:34,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174937713] [2024-11-27 20:19:34,940 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:34,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 20:19:35,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:36,558 INFO L134 CoverageAnalysis]: Checked inductivity of 3455 backedges. 655 proven. 1424 refuted. 0 times theorem prover too weak. 1376 trivial. 0 not checked. [2024-11-27 20:19:36,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-27 20:19:36,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174937713] [2024-11-27 20:19:36,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174937713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 20:19:36,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861422837] [2024-11-27 20:19:36,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 20:19:36,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:36,559 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 20:19:36,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 20:19:36,562 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-27 20:19:36,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 20:19:36,948 INFO L256 TraceCheckSpWp]: Trace formula consists of 1565 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 20:19:36,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 20:19:37,155 INFO L134 CoverageAnalysis]: Checked inductivity of 3455 backedges. 675 proven. 0 refuted. 0 times theorem prover too weak. 2780 trivial. 0 not checked. [2024-11-27 20:19:37,155 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-27 20:19:37,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861422837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-27 20:19:37,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-27 20:19:37,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-27 20:19:37,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36249990] [2024-11-27 20:19:37,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-27 20:19:37,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-27 20:19:37,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-27 20:19:37,158 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 20:19:37,158 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:19:37,158 INFO L87 Difference]: Start difference. First operand 13822 states and 14137 transitions. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 20:19:38,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 20:19:38,100 INFO L93 Difference]: Finished difference Result 26982 states and 27607 transitions. [2024-11-27 20:19:38,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 20:19:38,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 1335 [2024-11-27 20:19:38,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-27 20:19:38,102 INFO L225 Difference]: With dead ends: 26982 [2024-11-27 20:19:38,102 INFO L226 Difference]: Without dead ends: 0 [2024-11-27 20:19:38,108 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1340 GetRequests, 1336 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-27 20:19:38,108 INFO L435 NwaCegarLoop]: 45 mSDtfsCounter, 290 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 735 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-27 20:19:38,108 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 49 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 735 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-27 20:19:38,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-27 20:19:38,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-27 20:19:38,109 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 20:19:38,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-27 20:19:38,109 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1335 [2024-11-27 20:19:38,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-27 20:19:38,110 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-27 20:19:38,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 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 20:19:38,110 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-27 20:19:38,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-27 20:19:38,113 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-27 20:19:38,124 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-27 20:19:38,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 20:19:38,318 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 20:19:38,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-27 20:19:39,862 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-27 20:19:39,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 08:19:39 BoogieIcfgContainer [2024-11-27 20:19:39,884 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-27 20:19:39,885 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 20:19:39,885 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 20:19:39,886 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 20:19:39,887 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 08:18:41" (3/4) ... [2024-11-27 20:19:39,889 INFO L146 WitnessPrinter]: Generating witness for correct program [2024-11-27 20:19:39,919 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-27 20:19:39,922 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-27 20:19:39,924 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-27 20:19:39,927 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-27 20:19:40,186 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 20:19:40,187 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-27 20:19:40,187 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 20:19:40,189 INFO L158 Benchmark]: Toolchain (without parser) took 64335.96ms. Allocated memory was 117.4MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 88.1MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 380.0MB. Max. memory is 16.1GB. [2024-11-27 20:19:40,191 INFO L158 Benchmark]: CDTParser took 1.91ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 74.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 20:19:40,191 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1346.80ms. Allocated memory is still 117.4MB. Free memory was 87.9MB in the beginning and 79.1MB in the end (delta: 8.8MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. [2024-11-27 20:19:40,192 INFO L158 Benchmark]: Boogie Procedure Inliner took 223.21ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 55.8MB in the end (delta: 23.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 20:19:40,192 INFO L158 Benchmark]: Boogie Preprocessor took 358.26ms. Allocated memory is still 117.4MB. Free memory was 55.8MB in the beginning and 66.5MB in the end (delta: -10.7MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. [2024-11-27 20:19:40,193 INFO L158 Benchmark]: RCFGBuilder took 3818.62ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 66.5MB in the beginning and 118.5MB in the end (delta: -52.0MB). Peak memory consumption was 122.3MB. Max. memory is 16.1GB. [2024-11-27 20:19:40,193 INFO L158 Benchmark]: TraceAbstraction took 58279.34ms. Allocated memory was 234.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 118.5MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 944.3MB. Max. memory is 16.1GB. [2024-11-27 20:19:40,197 INFO L158 Benchmark]: Witness Printer took 301.57ms. Allocated memory is still 1.5GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-27 20:19:40,199 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.91ms. Allocated memory is still 117.4MB. Free memory was 74.9MB in the beginning and 74.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1346.80ms. Allocated memory is still 117.4MB. Free memory was 87.9MB in the beginning and 79.1MB in the end (delta: 8.8MB). Peak memory consumption was 60.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 223.21ms. Allocated memory is still 117.4MB. Free memory was 79.1MB in the beginning and 55.8MB in the end (delta: 23.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 358.26ms. Allocated memory is still 117.4MB. Free memory was 55.8MB in the beginning and 66.5MB in the end (delta: -10.7MB). Peak memory consumption was 36.2MB. Max. memory is 16.1GB. * RCFGBuilder took 3818.62ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 66.5MB in the beginning and 118.5MB in the end (delta: -52.0MB). Peak memory consumption was 122.3MB. Max. memory is 16.1GB. * TraceAbstraction took 58279.34ms. Allocated memory was 234.9MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 118.5MB in the beginning and 1.1GB in the end (delta: -1.0GB). Peak memory consumption was 944.3MB. Max. memory is 16.1GB. * Witness Printer took 301.57ms. Allocated memory is still 1.5GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 21.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 110]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 396 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 56.6s, OverallIterations: 19, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 33.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5650 SdHoareTripleChecker+Valid, 30.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5650 mSDsluCounter, 4389 SdHoareTripleChecker+Invalid, 25.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 138 mSDsCounter, 2902 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18617 IncrementalHoareTripleChecker+Invalid, 21519 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2902 mSolverCounterUnsat, 4251 mSDtfsCounter, 18617 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3198 GetRequests, 3158 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15796occurred in iteration=13, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 5593 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 15.2s InterpolantComputationTime, 14531 NumberOfCodeBlocks, 14531 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 14509 ConstructedInterpolants, 0 QuantifiedInterpolants, 40242 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3694 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 22 InterpolantComputations, 19 PerfectInterpolantSequences, 23587/25527 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1783]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a16 == 9) && (7 == a12)) || ((a16 <= 8) && (a12 <= 6))) || (((a12 == 9) && (a15 <= 3)) && (a16 == 12))) || (((a16 == 9) && (a12 <= 6)) && (4 <= a15))) || ((a12 == 9) && (a16 == 9))) || ((a16 <= 8) && (a12 == 9))) || (((a15 <= 3) && (a16 <= 11)) && (7 == a12))) || ((((a15 <= 3) && (a12 == 8)) && (10 <= a16)) && (a16 <= 11))) || (((a12 == 9) && (a15 <= 3)) && (a16 <= 11))) || ((a16 == 9) && (a12 == 8))) || (((a15 <= 3) && (a16 == 12)) && (7 == a12))) || (((a16 == 9) && (5 == a12)) && (a15 == 3))) || (((a15 <= 3) && (a12 == 8)) && (a16 == 12))) || ((((0 <= ((long long) 87 + a18)) && (a15 <= 3)) && (a16 == 12)) && (a12 <= 6))) || (((a16 == 12) && (5 == a12)) && (a15 == 3))) || (((a16 <= 8) && (0 <= ((long long) 87 + a18))) && (a15 <= 3))) || (((a16 <= 8) && (a12 == 8)) && (4 <= a15))) || ((a16 <= 8) && (7 == a12))) || (((10 <= a16) && (a12 <= 6)) && (a16 <= 11))) RESULT: Ultimate proved your program to be correct! [2024-11-27 20:19:40,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_67755c4a-ea03-4ace-aeaa-7a66bb2cef40/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