./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label05.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label05.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX --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 d0915623dd1f4682f183de0ff6ce6338d2670547f36e90f5eb8f63b75b82ebb3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:04:34,362 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:04:34,442 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:04:34,447 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:04:34,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:04:34,471 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:04:34,472 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:04:34,473 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:04:34,473 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:04:34,474 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:04:34,474 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:04:34,475 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:04:34,475 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:04:34,476 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:04:34,476 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:04:34,476 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:04:34,477 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:04:34,477 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:04:34,478 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:04:34,478 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:04:34,478 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:04:34,479 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:04:34,479 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:04:34,480 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:04:34,480 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:04:34,481 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:04:34,481 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:04:34,481 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:04:34,482 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:04:34,482 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:04:34,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:04:34,483 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:04:34,483 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:34,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:04:34,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:04:34,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:04:34,485 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:04:34,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:04:34,485 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:04:34,486 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:04:34,486 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:04:34,486 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:04:34,487 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0915623dd1f4682f183de0ff6ce6338d2670547f36e90f5eb8f63b75b82ebb3 [2024-11-08 16:04:34,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:04:34,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:04:34,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:04:34,855 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:04:34,855 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:04:34,857 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label05.c Unable to find full path for "g++" [2024-11-08 16:04:36,957 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:04:37,457 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:04:37,458 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-08 16:04:37,497 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/data/c26c15b57/2eb257e451734330bd26ce2c99565974/FLAGb6bd8c01e [2024-11-08 16:04:37,514 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/data/c26c15b57/2eb257e451734330bd26ce2c99565974 [2024-11-08 16:04:37,518 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:04:37,519 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:04:37,521 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:37,522 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:04:37,529 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:04:37,530 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:37" (1/1) ... [2024-11-08 16:04:37,533 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fb6d107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:37, skipping insertion in model container [2024-11-08 16:04:37,533 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:04:37" (1/1) ... [2024-11-08 16:04:37,669 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:04:38,136 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_eeeb16ac-e29d-42e5-8005-ee9276334842/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label05.c[15547,15560] [2024-11-08 16:04:38,208 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_eeeb16ac-e29d-42e5-8005-ee9276334842/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label05.c[22483,22496] [2024-11-08 16:04:39,198 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:39,216 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:04:39,285 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_eeeb16ac-e29d-42e5-8005-ee9276334842/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label05.c[15547,15560] [2024-11-08 16:04:39,305 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_eeeb16ac-e29d-42e5-8005-ee9276334842/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label05.c[22483,22496] [2024-11-08 16:04:39,934 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:04:39,974 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:04:39,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39 WrapperNode [2024-11-08 16:04:39,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:04:39,976 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:39,977 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:04:39,977 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:04:39,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:40,077 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:40,566 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5156 [2024-11-08 16:04:40,566 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:04:40,567 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:04:40,567 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:04:40,568 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:04:40,581 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:40,588 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:40,681 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:40,936 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]. [2024-11-08 16:04:40,937 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:40,944 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:41,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:41,148 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:41,165 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:41,178 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:41,241 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:04:41,242 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:04:41,243 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:04:41,243 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:04:41,244 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (1/1) ... [2024-11-08 16:04:41,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:04:41,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:04:41,283 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:04:41,289 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:04:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:04:41,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:04:41,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:04:41,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:04:41,450 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:04:41,452 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:04:47,422 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-08 16:04:47,423 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:04:47,458 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:04:47,461 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 16:04:47,462 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:47 BoogieIcfgContainer [2024-11-08 16:04:47,462 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:04:47,464 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:04:47,464 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:04:47,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:04:47,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:04:37" (1/3) ... [2024-11-08 16:04:47,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abbf1dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:47, skipping insertion in model container [2024-11-08 16:04:47,471 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:04:39" (2/3) ... [2024-11-08 16:04:47,472 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3abbf1dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:04:47, skipping insertion in model container [2024-11-08 16:04:47,472 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:04:47" (3/3) ... [2024-11-08 16:04:47,474 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label05.c [2024-11-08 16:04:47,494 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:04:47,494 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-08 16:04:47,608 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:04:47,618 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;@54f2ef33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:04:47,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-08 16:04:47,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 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) [2024-11-08 16:04:47,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-08 16:04:47,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:47,641 INFO L215 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] [2024-11-08 16:04:47,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:47,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:47,648 INFO L85 PathProgramCache]: Analyzing trace with hash -1571251223, now seen corresponding path program 1 times [2024-11-08 16:04:47,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:47,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375216218] [2024-11-08 16:04:47,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:47,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:47,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:47,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:47,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:47,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375216218] [2024-11-08 16:04:47,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375216218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:47,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:47,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:04:47,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848380407] [2024-11-08 16:04:47,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:48,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:04:48,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:48,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:04:48,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:04:48,038 INFO L87 Difference]: Start difference. First operand has 916 states, 913 states have (on average 1.9036144578313252) internal successors, (1738), 915 states have internal predecessors, (1738), 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 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) [2024-11-08 16:04:48,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:48,190 INFO L93 Difference]: Finished difference Result 1784 states and 3386 transitions. [2024-11-08 16:04:48,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:04:48,192 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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 26 [2024-11-08 16:04:48,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:48,216 INFO L225 Difference]: With dead ends: 1784 [2024-11-08 16:04:48,216 INFO L226 Difference]: Without dead ends: 850 [2024-11-08 16:04:48,225 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:04:48,229 INFO L432 NwaCegarLoop]: 1669 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1669 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:48,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1669 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:48,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-08 16:04:48,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2024-11-08 16:04:48,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 848 states have (on average 1.892688679245283) internal successors, (1605), 849 states have internal predecessors, (1605), 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) [2024-11-08 16:04:48,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1605 transitions. [2024-11-08 16:04:48,316 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1605 transitions. Word has length 26 [2024-11-08 16:04:48,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:48,317 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1605 transitions. [2024-11-08 16:04:48,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 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) [2024-11-08 16:04:48,318 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1605 transitions. [2024-11-08 16:04:48,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-08 16:04:48,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:48,319 INFO L215 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] [2024-11-08 16:04:48,320 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:04:48,320 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:48,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:48,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1906067623, now seen corresponding path program 1 times [2024-11-08 16:04:48,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:48,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909893558] [2024-11-08 16:04:48,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:48,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:48,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:48,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:48,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909893558] [2024-11-08 16:04:48,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909893558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:48,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:48,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:04:48,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369466941] [2024-11-08 16:04:48,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:48,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:04:48,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:48,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:04:48,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:48,667 INFO L87 Difference]: Start difference. First operand 850 states and 1605 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-08 16:04:48,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:48,803 INFO L93 Difference]: Finished difference Result 904 states and 1689 transitions. [2024-11-08 16:04:48,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:04:48,804 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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 26 [2024-11-08 16:04:48,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:48,808 INFO L225 Difference]: With dead ends: 904 [2024-11-08 16:04:48,808 INFO L226 Difference]: Without dead ends: 850 [2024-11-08 16:04:48,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:04:48,811 INFO L432 NwaCegarLoop]: 1603 mSDtfsCounter, 0 mSDsluCounter, 4764 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6367 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:48,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6367 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:48,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 850 states. [2024-11-08 16:04:48,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 850 to 850. [2024-11-08 16:04:48,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 850 states, 848 states have (on average 1.8455188679245282) internal successors, (1565), 849 states have internal predecessors, (1565), 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) [2024-11-08 16:04:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 850 states to 850 states and 1565 transitions. [2024-11-08 16:04:48,843 INFO L78 Accepts]: Start accepts. Automaton has 850 states and 1565 transitions. Word has length 26 [2024-11-08 16:04:48,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:48,844 INFO L471 AbstractCegarLoop]: Abstraction has 850 states and 1565 transitions. [2024-11-08 16:04:48,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 5 states have internal predecessors, (26), 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) [2024-11-08 16:04:48,844 INFO L276 IsEmpty]: Start isEmpty. Operand 850 states and 1565 transitions. [2024-11-08 16:04:48,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-08 16:04:48,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:48,849 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:48,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:04:48,850 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:48,850 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:48,851 INFO L85 PathProgramCache]: Analyzing trace with hash -819397436, now seen corresponding path program 1 times [2024-11-08 16:04:48,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:48,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288035628] [2024-11-08 16:04:48,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:48,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:48,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:49,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:49,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:49,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288035628] [2024-11-08 16:04:49,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288035628] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:49,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:49,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:49,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393421743] [2024-11-08 16:04:49,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:49,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:04:49,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:49,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:04:49,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:04:49,190 INFO L87 Difference]: Start difference. First operand 850 states and 1565 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-08 16:04:57,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:57,673 INFO L93 Difference]: Finished difference Result 3105 states and 5874 transitions. [2024-11-08 16:04:57,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:04:57,674 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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 60 [2024-11-08 16:04:57,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:57,685 INFO L225 Difference]: With dead ends: 3105 [2024-11-08 16:04:57,685 INFO L226 Difference]: Without dead ends: 2352 [2024-11-08 16:04:57,687 INFO L431 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 [2024-11-08 16:04:57,688 INFO L432 NwaCegarLoop]: 801 mSDtfsCounter, 2445 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2445 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:57,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2445 Valid, 819 Invalid, 6507 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 8.2s Time] [2024-11-08 16:04:57,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2024-11-08 16:04:57,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2352. [2024-11-08 16:04:57,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 2350 states have (on average 1.565531914893617) internal successors, (3679), 2351 states have internal predecessors, (3679), 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) [2024-11-08 16:04:57,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3679 transitions. [2024-11-08 16:04:57,745 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3679 transitions. Word has length 60 [2024-11-08 16:04:57,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:57,748 INFO L471 AbstractCegarLoop]: Abstraction has 2352 states and 3679 transitions. [2024-11-08 16:04:57,748 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2024-11-08 16:04:57,749 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3679 transitions. [2024-11-08 16:04:57,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 16:04:57,751 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:57,751 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:57,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:04:57,751 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:57,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:57,754 INFO L85 PathProgramCache]: Analyzing trace with hash 162287091, now seen corresponding path program 1 times [2024-11-08 16:04:57,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:57,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662082078] [2024-11-08 16:04:57,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:57,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:57,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:58,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:58,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:58,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662082078] [2024-11-08 16:04:58,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662082078] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:58,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:58,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:04:58,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99700445] [2024-11-08 16:04:58,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:58,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:04:58,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:58,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:04:58,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:04:58,069 INFO L87 Difference]: Start difference. First operand 2352 states and 3679 transitions. Second operand has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:58,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:58,489 INFO L93 Difference]: Finished difference Result 2952 states and 4639 transitions. [2024-11-08 16:04:58,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:04:58,490 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 65 [2024-11-08 16:04:58,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:58,500 INFO L225 Difference]: With dead ends: 2952 [2024-11-08 16:04:58,500 INFO L226 Difference]: Without dead ends: 2902 [2024-11-08 16:04:58,502 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-08 16:04:58,503 INFO L432 NwaCegarLoop]: 1559 mSDtfsCounter, 9795 mSDsluCounter, 1783 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9795 SdHoareTripleChecker+Valid, 3342 SdHoareTripleChecker+Invalid, 185 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:58,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9795 Valid, 3342 Invalid, 185 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:04:58,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2902 states. [2024-11-08 16:04:58,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2902 to 2400. [2024-11-08 16:04:58,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2400 states, 2398 states have (on average 1.5663052543786489) internal successors, (3756), 2399 states have internal predecessors, (3756), 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) [2024-11-08 16:04:58,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2400 states to 2400 states and 3756 transitions. [2024-11-08 16:04:58,561 INFO L78 Accepts]: Start accepts. Automaton has 2400 states and 3756 transitions. Word has length 65 [2024-11-08 16:04:58,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:58,561 INFO L471 AbstractCegarLoop]: Abstraction has 2400 states and 3756 transitions. [2024-11-08 16:04:58,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:04:58,562 INFO L276 IsEmpty]: Start isEmpty. Operand 2400 states and 3756 transitions. [2024-11-08 16:04:58,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 16:04:58,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:58,564 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:58,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:04:58,565 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:58,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:58,565 INFO L85 PathProgramCache]: Analyzing trace with hash -76622237, now seen corresponding path program 1 times [2024-11-08 16:04:58,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:58,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492629834] [2024-11-08 16:04:58,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:58,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:58,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:58,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:58,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:58,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492629834] [2024-11-08 16:04:58,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492629834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:58,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:58,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:04:58,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946849492] [2024-11-08 16:04:58,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:58,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:04:58,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:58,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:04:58,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:04:58,703 INFO L87 Difference]: Start difference. First operand 2400 states and 3756 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-08 16:04:58,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:58,762 INFO L93 Difference]: Finished difference Result 2585 states and 4051 transitions. [2024-11-08 16:04:58,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:04:58,762 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 67 [2024-11-08 16:04:58,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:58,771 INFO L225 Difference]: With dead ends: 2585 [2024-11-08 16:04:58,771 INFO L226 Difference]: Without dead ends: 2487 [2024-11-08 16:04:58,773 INFO L431 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 [2024-11-08 16:04:58,774 INFO L432 NwaCegarLoop]: 1561 mSDtfsCounter, 1492 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1492 SdHoareTripleChecker+Valid, 1634 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:58,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1492 Valid, 1634 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:04:58,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2487 states. [2024-11-08 16:04:58,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2487 to 2483. [2024-11-08 16:04:58,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2481 states have (on average 1.5663039097138252) internal successors, (3886), 2482 states have internal predecessors, (3886), 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) [2024-11-08 16:04:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3886 transitions. [2024-11-08 16:04:58,834 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3886 transitions. Word has length 67 [2024-11-08 16:04:58,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:58,834 INFO L471 AbstractCegarLoop]: Abstraction has 2483 states and 3886 transitions. [2024-11-08 16:04:58,835 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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) [2024-11-08 16:04:58,835 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3886 transitions. [2024-11-08 16:04:58,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-08 16:04:58,836 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:58,837 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:58,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:04:58,837 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:58,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:58,838 INFO L85 PathProgramCache]: Analyzing trace with hash -10128725, now seen corresponding path program 1 times [2024-11-08 16:04:58,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:58,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595077108] [2024-11-08 16:04:58,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:58,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:58,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:04:59,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:04:59,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:04:59,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595077108] [2024-11-08 16:04:59,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595077108] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:04:59,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:04:59,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:04:59,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582433454] [2024-11-08 16:04:59,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:04:59,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:04:59,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:04:59,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:04:59,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:04:59,303 INFO L87 Difference]: Start difference. First operand 2483 states and 3886 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2024-11-08 16:04:59,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:04:59,642 INFO L93 Difference]: Finished difference Result 2666 states and 4174 transitions. [2024-11-08 16:04:59,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:04:59,643 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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 67 [2024-11-08 16:04:59,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:04:59,654 INFO L225 Difference]: With dead ends: 2666 [2024-11-08 16:04:59,654 INFO L226 Difference]: Without dead ends: 2485 [2024-11-08 16:04:59,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:04:59,659 INFO L432 NwaCegarLoop]: 1557 mSDtfsCounter, 6020 mSDsluCounter, 386 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6020 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:04:59,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6020 Valid, 1943 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:04:59,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2485 states. [2024-11-08 16:04:59,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2485 to 2483. [2024-11-08 16:04:59,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2481 states have (on average 1.5654977831519548) internal successors, (3884), 2482 states have internal predecessors, (3884), 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) [2024-11-08 16:04:59,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3884 transitions. [2024-11-08 16:04:59,737 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3884 transitions. Word has length 67 [2024-11-08 16:04:59,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:04:59,738 INFO L471 AbstractCegarLoop]: Abstraction has 2483 states and 3884 transitions. [2024-11-08 16:04:59,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 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) [2024-11-08 16:04:59,738 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3884 transitions. [2024-11-08 16:04:59,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-08 16:04:59,739 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:04:59,739 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:04:59,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:04:59,740 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:04:59,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:04:59,740 INFO L85 PathProgramCache]: Analyzing trace with hash -728713468, now seen corresponding path program 1 times [2024-11-08 16:04:59,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:04:59,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795758772] [2024-11-08 16:04:59,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:04:59,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:04:59,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:00,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:00,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:00,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795758772] [2024-11-08 16:05:00,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795758772] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:00,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:00,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:05:00,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347240943] [2024-11-08 16:05:00,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:00,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:05:00,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:00,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:05:00,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:05:00,073 INFO L87 Difference]: Start difference. First operand 2483 states and 3884 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-08 16:05:00,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:00,134 INFO L93 Difference]: Finished difference Result 2491 states and 3893 transitions. [2024-11-08 16:05:00,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:05:00,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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 68 [2024-11-08 16:05:00,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:00,145 INFO L225 Difference]: With dead ends: 2491 [2024-11-08 16:05:00,145 INFO L226 Difference]: Without dead ends: 2489 [2024-11-08 16:05:00,147 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:05:00,148 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 0 mSDsluCounter, 4677 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6239 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:00,150 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6239 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:00,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2024-11-08 16:05:00,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2489. [2024-11-08 16:05:00,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2487 states have (on average 1.5637314032971452) internal successors, (3889), 2488 states have internal predecessors, (3889), 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) [2024-11-08 16:05:00,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 3889 transitions. [2024-11-08 16:05:00,211 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 3889 transitions. Word has length 68 [2024-11-08 16:05:00,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:00,211 INFO L471 AbstractCegarLoop]: Abstraction has 2489 states and 3889 transitions. [2024-11-08 16:05:00,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 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) [2024-11-08 16:05:00,212 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 3889 transitions. [2024-11-08 16:05:00,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 16:05:00,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:00,213 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:00,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:05:00,214 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:00,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:00,214 INFO L85 PathProgramCache]: Analyzing trace with hash -741834325, now seen corresponding path program 1 times [2024-11-08 16:05:00,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:00,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710504251] [2024-11-08 16:05:00,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:00,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:00,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:00,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:00,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:00,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710504251] [2024-11-08 16:05:00,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710504251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:00,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:00,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:00,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214060510] [2024-11-08 16:05:00,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:00,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:00,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:00,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:00,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:00,324 INFO L87 Difference]: Start difference. First operand 2489 states and 3889 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:00,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:00,373 INFO L93 Difference]: Finished difference Result 2847 states and 4441 transitions. [2024-11-08 16:05:00,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:00,373 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-08 16:05:00,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:00,384 INFO L225 Difference]: With dead ends: 2847 [2024-11-08 16:05:00,384 INFO L226 Difference]: Without dead ends: 2660 [2024-11-08 16:05:00,385 INFO L431 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 [2024-11-08 16:05:00,386 INFO L432 NwaCegarLoop]: 1622 mSDtfsCounter, 1507 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:00,386 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:00,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2660 states. [2024-11-08 16:05:00,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2660 to 2658. [2024-11-08 16:05:00,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2658 states, 2656 states have (on average 1.5609939759036144) internal successors, (4146), 2657 states have internal predecessors, (4146), 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) [2024-11-08 16:05:00,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2658 states to 2658 states and 4146 transitions. [2024-11-08 16:05:00,458 INFO L78 Accepts]: Start accepts. Automaton has 2658 states and 4146 transitions. Word has length 69 [2024-11-08 16:05:00,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:00,458 INFO L471 AbstractCegarLoop]: Abstraction has 2658 states and 4146 transitions. [2024-11-08 16:05:00,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:00,459 INFO L276 IsEmpty]: Start isEmpty. Operand 2658 states and 4146 transitions. [2024-11-08 16:05:00,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 16:05:00,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:00,460 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:00,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:05:00,460 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:00,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:00,460 INFO L85 PathProgramCache]: Analyzing trace with hash -477977941, now seen corresponding path program 1 times [2024-11-08 16:05:00,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:00,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440286132] [2024-11-08 16:05:00,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:00,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:00,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:00,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:00,541 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:00,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440286132] [2024-11-08 16:05:00,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440286132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:00,541 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:00,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:00,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442317171] [2024-11-08 16:05:00,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:00,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:00,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:00,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:00,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:00,544 INFO L87 Difference]: Start difference. First operand 2658 states and 4146 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:00,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:00,611 INFO L93 Difference]: Finished difference Result 3338 states and 5184 transitions. [2024-11-08 16:05:00,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:00,611 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-08 16:05:00,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:00,621 INFO L225 Difference]: With dead ends: 3338 [2024-11-08 16:05:00,622 INFO L226 Difference]: Without dead ends: 2982 [2024-11-08 16:05:00,623 INFO L431 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 [2024-11-08 16:05:00,624 INFO L432 NwaCegarLoop]: 1620 mSDtfsCounter, 1505 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:00,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1709 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:00,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2982 states. [2024-11-08 16:05:00,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2982 to 2980. [2024-11-08 16:05:00,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2980 states, 2978 states have (on average 1.5540631296171927) internal successors, (4628), 2979 states have internal predecessors, (4628), 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) [2024-11-08 16:05:00,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2980 states to 2980 states and 4628 transitions. [2024-11-08 16:05:00,701 INFO L78 Accepts]: Start accepts. Automaton has 2980 states and 4628 transitions. Word has length 69 [2024-11-08 16:05:00,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:00,701 INFO L471 AbstractCegarLoop]: Abstraction has 2980 states and 4628 transitions. [2024-11-08 16:05:00,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:00,701 INFO L276 IsEmpty]: Start isEmpty. Operand 2980 states and 4628 transitions. [2024-11-08 16:05:00,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 16:05:00,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:00,702 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:00,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 16:05:00,751 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:00,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:00,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1455184725, now seen corresponding path program 1 times [2024-11-08 16:05:00,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:00,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172266735] [2024-11-08 16:05:00,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:00,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:00,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:00,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:00,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:00,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172266735] [2024-11-08 16:05:00,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172266735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:00,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:00,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:00,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649319552] [2024-11-08 16:05:00,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:00,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:00,842 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:00,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:00,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:00,843 INFO L87 Difference]: Start difference. First operand 2980 states and 4628 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:00,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:00,916 INFO L93 Difference]: Finished difference Result 4272 states and 6574 transitions. [2024-11-08 16:05:00,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:00,916 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-08 16:05:00,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:00,932 INFO L225 Difference]: With dead ends: 4272 [2024-11-08 16:05:00,932 INFO L226 Difference]: Without dead ends: 3594 [2024-11-08 16:05:00,938 INFO L431 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 [2024-11-08 16:05:00,939 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 1501 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1501 SdHoareTripleChecker+Valid, 1705 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:00,939 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1501 Valid, 1705 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:00,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3594 states. [2024-11-08 16:05:01,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3594 to 3592. [2024-11-08 16:05:01,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3592 states, 3590 states have (on average 1.5398328690807799) internal successors, (5528), 3591 states have internal predecessors, (5528), 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) [2024-11-08 16:05:01,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3592 states to 3592 states and 5528 transitions. [2024-11-08 16:05:01,050 INFO L78 Accepts]: Start accepts. Automaton has 3592 states and 5528 transitions. Word has length 69 [2024-11-08 16:05:01,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:01,050 INFO L471 AbstractCegarLoop]: Abstraction has 3592 states and 5528 transitions. [2024-11-08 16:05:01,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:01,050 INFO L276 IsEmpty]: Start isEmpty. Operand 3592 states and 5528 transitions. [2024-11-08 16:05:01,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 16:05:01,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:01,054 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:01,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 16:05:01,054 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:01,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:01,054 INFO L85 PathProgramCache]: Analyzing trace with hash 325748139, now seen corresponding path program 1 times [2024-11-08 16:05:01,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:01,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928145492] [2024-11-08 16:05:01,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:01,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:01,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:01,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:01,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928145492] [2024-11-08 16:05:01,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928145492] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:01,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:01,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:01,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042937201] [2024-11-08 16:05:01,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:01,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:01,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:01,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:01,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:01,135 INFO L87 Difference]: Start difference. First operand 3592 states and 5528 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:01,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:01,253 INFO L93 Difference]: Finished difference Result 6044 states and 9162 transitions. [2024-11-08 16:05:01,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:01,259 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-08 16:05:01,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:01,282 INFO L225 Difference]: With dead ends: 6044 [2024-11-08 16:05:01,282 INFO L226 Difference]: Without dead ends: 4754 [2024-11-08 16:05:01,296 INFO L431 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 [2024-11-08 16:05:01,297 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 1499 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1499 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:01,297 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1499 Valid, 1707 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:01,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4754 states. [2024-11-08 16:05:01,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4754 to 4752. [2024-11-08 16:05:01,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4752 states, 4750 states have (on average 1.5157894736842106) internal successors, (7200), 4751 states have internal predecessors, (7200), 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) [2024-11-08 16:05:01,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4752 states to 4752 states and 7200 transitions. [2024-11-08 16:05:01,503 INFO L78 Accepts]: Start accepts. Automaton has 4752 states and 7200 transitions. Word has length 69 [2024-11-08 16:05:01,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:01,504 INFO L471 AbstractCegarLoop]: Abstraction has 4752 states and 7200 transitions. [2024-11-08 16:05:01,504 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:01,504 INFO L276 IsEmpty]: Start isEmpty. Operand 4752 states and 7200 transitions. [2024-11-08 16:05:01,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-08 16:05:01,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:01,505 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:01,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:05:01,506 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:01,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:01,506 INFO L85 PathProgramCache]: Analyzing trace with hash 760284075, now seen corresponding path program 1 times [2024-11-08 16:05:01,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:01,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672665348] [2024-11-08 16:05:01,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:01,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:01,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:01,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:01,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672665348] [2024-11-08 16:05:01,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672665348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:01,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:01,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:01,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053228835] [2024-11-08 16:05:01,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:01,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:01,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:01,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:01,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:01,587 INFO L87 Difference]: Start difference. First operand 4752 states and 7200 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:01,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:01,738 INFO L93 Difference]: Finished difference Result 9396 states and 13954 transitions. [2024-11-08 16:05:01,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:01,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-08 16:05:01,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:01,753 INFO L225 Difference]: With dead ends: 9396 [2024-11-08 16:05:01,754 INFO L226 Difference]: Without dead ends: 6946 [2024-11-08 16:05:01,758 INFO L431 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 [2024-11-08 16:05:01,759 INFO L432 NwaCegarLoop]: 1618 mSDtfsCounter, 1503 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:01,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1711 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:01,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6946 states. [2024-11-08 16:05:01,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6946 to 6944. [2024-11-08 16:05:01,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6944 states, 6942 states have (on average 1.4819936617689426) internal successors, (10288), 6943 states have internal predecessors, (10288), 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) [2024-11-08 16:05:01,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6944 states to 6944 states and 10288 transitions. [2024-11-08 16:05:01,982 INFO L78 Accepts]: Start accepts. Automaton has 6944 states and 10288 transitions. Word has length 69 [2024-11-08 16:05:01,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:01,983 INFO L471 AbstractCegarLoop]: Abstraction has 6944 states and 10288 transitions. [2024-11-08 16:05:01,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:01,984 INFO L276 IsEmpty]: Start isEmpty. Operand 6944 states and 10288 transitions. [2024-11-08 16:05:01,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-08 16:05:01,985 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:01,985 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:05:01,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:05:01,985 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:01,986 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:01,986 INFO L85 PathProgramCache]: Analyzing trace with hash 323252678, now seen corresponding path program 1 times [2024-11-08 16:05:01,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:01,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942723117] [2024-11-08 16:05:01,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:01,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:02,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:02,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:02,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:02,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942723117] [2024-11-08 16:05:02,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942723117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:02,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:02,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:02,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229341612] [2024-11-08 16:05:02,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:02,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:02,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:02,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:02,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:02,150 INFO L87 Difference]: Start difference. First operand 6944 states and 10288 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:02,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:02,468 INFO L93 Difference]: Finished difference Result 11815 states and 17398 transitions. [2024-11-08 16:05:02,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:02,469 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 71 [2024-11-08 16:05:02,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:02,491 INFO L225 Difference]: With dead ends: 11815 [2024-11-08 16:05:02,491 INFO L226 Difference]: Without dead ends: 9188 [2024-11-08 16:05:02,497 INFO L431 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 [2024-11-08 16:05:02,499 INFO L432 NwaCegarLoop]: 1627 mSDtfsCounter, 1506 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1506 SdHoareTripleChecker+Valid, 1708 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:02,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1506 Valid, 1708 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:02,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9188 states. [2024-11-08 16:05:02,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9188 to 9186. [2024-11-08 16:05:02,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9186 states, 9184 states have (on average 1.4653745644599303) internal successors, (13458), 9185 states have internal predecessors, (13458), 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) [2024-11-08 16:05:02,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9186 states to 9186 states and 13458 transitions. [2024-11-08 16:05:02,900 INFO L78 Accepts]: Start accepts. Automaton has 9186 states and 13458 transitions. Word has length 71 [2024-11-08 16:05:02,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:02,900 INFO L471 AbstractCegarLoop]: Abstraction has 9186 states and 13458 transitions. [2024-11-08 16:05:02,901 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:05:02,901 INFO L276 IsEmpty]: Start isEmpty. Operand 9186 states and 13458 transitions. [2024-11-08 16:05:02,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 16:05:02,904 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:02,904 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:02,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-08 16:05:02,904 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:02,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:02,905 INFO L85 PathProgramCache]: Analyzing trace with hash -159144435, now seen corresponding path program 1 times [2024-11-08 16:05:02,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:02,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030606077] [2024-11-08 16:05:02,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:02,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:02,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:03,162 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:05:03,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:03,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030606077] [2024-11-08 16:05:03,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030606077] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:03,163 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:03,163 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:05:03,163 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525103044] [2024-11-08 16:05:03,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:03,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:05:03,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:03,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:05:03,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:05:03,165 INFO L87 Difference]: Start difference. First operand 9186 states and 13458 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-11-08 16:05:04,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:04,597 INFO L93 Difference]: Finished difference Result 51920 states and 74585 transitions. [2024-11-08 16:05:04,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:05:04,598 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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 90 [2024-11-08 16:05:04,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:04,707 INFO L225 Difference]: With dead ends: 51920 [2024-11-08 16:05:04,707 INFO L226 Difference]: Without dead ends: 45038 [2024-11-08 16:05:04,724 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:04,725 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8119 mSDsluCounter, 2293 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8119 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:04,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8119 Valid, 3935 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:05:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45038 states. [2024-11-08 16:05:05,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45038 to 16066. [2024-11-08 16:05:05,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16066 states, 16064 states have (on average 1.4453436254980079) internal successors, (23218), 16065 states have internal predecessors, (23218), 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) [2024-11-08 16:05:05,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16066 states to 16066 states and 23218 transitions. [2024-11-08 16:05:05,713 INFO L78 Accepts]: Start accepts. Automaton has 16066 states and 23218 transitions. Word has length 90 [2024-11-08 16:05:05,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:05,714 INFO L471 AbstractCegarLoop]: Abstraction has 16066 states and 23218 transitions. [2024-11-08 16:05:05,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2024-11-08 16:05:05,714 INFO L276 IsEmpty]: Start isEmpty. Operand 16066 states and 23218 transitions. [2024-11-08 16:05:05,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 16:05:05,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:05,717 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:05,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 16:05:05,718 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:05,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:05,718 INFO L85 PathProgramCache]: Analyzing trace with hash 104711949, now seen corresponding path program 1 times [2024-11-08 16:05:05,718 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:05,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735338995] [2024-11-08 16:05:05,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:05,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:05,983 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:05:05,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:05,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735338995] [2024-11-08 16:05:05,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735338995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:05,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:05,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:05:05,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407935321] [2024-11-08 16:05:05,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:05,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:05:05,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:05,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:05:05,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:05:05,987 INFO L87 Difference]: Start difference. First operand 16066 states and 23218 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-08 16:05:07,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:07,775 INFO L93 Difference]: Finished difference Result 58800 states and 84345 transitions. [2024-11-08 16:05:07,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:05:07,776 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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 90 [2024-11-08 16:05:07,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:07,901 INFO L225 Difference]: With dead ends: 58800 [2024-11-08 16:05:07,901 INFO L226 Difference]: Without dead ends: 51918 [2024-11-08 16:05:07,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:07,920 INFO L432 NwaCegarLoop]: 1639 mSDtfsCounter, 8165 mSDsluCounter, 2189 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8165 SdHoareTripleChecker+Valid, 3828 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:07,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8165 Valid, 3828 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:05:07,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51918 states. [2024-11-08 16:05:09,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51918 to 26402. [2024-11-08 16:05:09,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26402 states, 26400 states have (on average 1.4309848484848484) internal successors, (37778), 26401 states have internal predecessors, (37778), 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) [2024-11-08 16:05:09,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26402 states to 26402 states and 37778 transitions. [2024-11-08 16:05:09,692 INFO L78 Accepts]: Start accepts. Automaton has 26402 states and 37778 transitions. Word has length 90 [2024-11-08 16:05:09,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:09,693 INFO L471 AbstractCegarLoop]: Abstraction has 26402 states and 37778 transitions. [2024-11-08 16:05:09,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 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) [2024-11-08 16:05:09,693 INFO L276 IsEmpty]: Start isEmpty. Operand 26402 states and 37778 transitions. [2024-11-08 16:05:09,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 16:05:09,697 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:09,697 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:09,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:05:09,698 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:09,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:09,698 INFO L85 PathProgramCache]: Analyzing trace with hash -872494835, now seen corresponding path program 1 times [2024-11-08 16:05:09,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:09,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335292917] [2024-11-08 16:05:09,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:09,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:09,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:09,983 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-08 16:05:09,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:09,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335292917] [2024-11-08 16:05:09,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1335292917] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:09,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:09,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:05:09,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184806673] [2024-11-08 16:05:09,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:09,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:05:09,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:09,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:05:09,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:05:09,986 INFO L87 Difference]: Start difference. First operand 26402 states and 37778 transitions. Second operand has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2024-11-08 16:05:11,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:11,620 INFO L93 Difference]: Finished difference Result 65680 states and 94105 transitions. [2024-11-08 16:05:11,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:05:11,621 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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 90 [2024-11-08 16:05:11,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:11,747 INFO L225 Difference]: With dead ends: 65680 [2024-11-08 16:05:11,747 INFO L226 Difference]: Without dead ends: 58798 [2024-11-08 16:05:11,763 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:11,763 INFO L432 NwaCegarLoop]: 1636 mSDtfsCounter, 8234 mSDsluCounter, 2227 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8234 SdHoareTripleChecker+Valid, 3863 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:11,764 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8234 Valid, 3863 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:05:11,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58798 states. [2024-11-08 16:05:13,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58798 to 33282. [2024-11-08 16:05:13,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33282 states, 33280 states have (on average 1.4284254807692307) internal successors, (47538), 33281 states have internal predecessors, (47538), 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) [2024-11-08 16:05:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33282 states to 33282 states and 47538 transitions. [2024-11-08 16:05:13,331 INFO L78 Accepts]: Start accepts. Automaton has 33282 states and 47538 transitions. Word has length 90 [2024-11-08 16:05:13,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:13,331 INFO L471 AbstractCegarLoop]: Abstraction has 33282 states and 47538 transitions. [2024-11-08 16:05:13,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.125) internal successors, (81), 8 states have internal predecessors, (81), 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) [2024-11-08 16:05:13,332 INFO L276 IsEmpty]: Start isEmpty. Operand 33282 states and 47538 transitions. [2024-11-08 16:05:13,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 16:05:13,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:13,336 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:13,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:05:13,336 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:13,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:13,337 INFO L85 PathProgramCache]: Analyzing trace with hash 908438029, now seen corresponding path program 1 times [2024-11-08 16:05:13,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:13,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551495761] [2024-11-08 16:05:13,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:13,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:13,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:13,603 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 16:05:13,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:13,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551495761] [2024-11-08 16:05:13,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [551495761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:13,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:13,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:05:13,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393785479] [2024-11-08 16:05:13,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:13,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:05:13,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:13,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:05:13,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:05:13,605 INFO L87 Difference]: Start difference. First operand 33282 states and 47538 transitions. Second operand has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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) [2024-11-08 16:05:16,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:16,487 INFO L93 Difference]: Finished difference Result 72560 states and 103865 transitions. [2024-11-08 16:05:16,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:05:16,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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 90 [2024-11-08 16:05:16,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:16,607 INFO L225 Difference]: With dead ends: 72560 [2024-11-08 16:05:16,608 INFO L226 Difference]: Without dead ends: 65678 [2024-11-08 16:05:16,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:16,635 INFO L432 NwaCegarLoop]: 1637 mSDtfsCounter, 8150 mSDsluCounter, 2233 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8150 SdHoareTripleChecker+Valid, 3870 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:16,635 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8150 Valid, 3870 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:05:16,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65678 states. [2024-11-08 16:05:18,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65678 to 40162. [2024-11-08 16:05:18,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40162 states, 40160 states have (on average 1.4267430278884463) internal successors, (57298), 40161 states have internal predecessors, (57298), 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) [2024-11-08 16:05:18,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40162 states to 40162 states and 57298 transitions. [2024-11-08 16:05:18,299 INFO L78 Accepts]: Start accepts. Automaton has 40162 states and 57298 transitions. Word has length 90 [2024-11-08 16:05:18,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:18,299 INFO L471 AbstractCegarLoop]: Abstraction has 40162 states and 57298 transitions. [2024-11-08 16:05:18,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.875) internal successors, (79), 8 states have internal predecessors, (79), 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) [2024-11-08 16:05:18,300 INFO L276 IsEmpty]: Start isEmpty. Operand 40162 states and 57298 transitions. [2024-11-08 16:05:18,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-08 16:05:18,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:18,304 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:18,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-08 16:05:18,304 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:18,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:18,305 INFO L85 PathProgramCache]: Analyzing trace with hash 1342973965, now seen corresponding path program 1 times [2024-11-08 16:05:18,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:18,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581082651] [2024-11-08 16:05:18,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:18,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 16:05:18,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:18,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581082651] [2024-11-08 16:05:18,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581082651] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:18,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:18,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:05:18,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609324873] [2024-11-08 16:05:18,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:18,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:05:18,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:18,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:05:18,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:05:18,575 INFO L87 Difference]: Start difference. First operand 40162 states and 57298 transitions. Second operand has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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) [2024-11-08 16:05:20,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:20,687 INFO L93 Difference]: Finished difference Result 79440 states and 113625 transitions. [2024-11-08 16:05:20,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:05:20,687 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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 90 [2024-11-08 16:05:20,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:20,756 INFO L225 Difference]: With dead ends: 79440 [2024-11-08 16:05:20,756 INFO L226 Difference]: Without dead ends: 72558 [2024-11-08 16:05:20,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:20,769 INFO L432 NwaCegarLoop]: 1642 mSDtfsCounter, 8060 mSDsluCounter, 2351 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8060 SdHoareTripleChecker+Valid, 3993 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:20,769 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8060 Valid, 3993 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:05:20,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72558 states. [2024-11-08 16:05:22,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72558 to 47042. [2024-11-08 16:05:22,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47042 states, 47040 states have (on average 1.4255527210884353) internal successors, (67058), 47041 states have internal predecessors, (67058), 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) [2024-11-08 16:05:22,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47042 states to 47042 states and 67058 transitions. [2024-11-08 16:05:22,887 INFO L78 Accepts]: Start accepts. Automaton has 47042 states and 67058 transitions. Word has length 90 [2024-11-08 16:05:22,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:22,887 INFO L471 AbstractCegarLoop]: Abstraction has 47042 states and 67058 transitions. [2024-11-08 16:05:22,888 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.375) internal successors, (83), 8 states have internal predecessors, (83), 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) [2024-11-08 16:05:22,888 INFO L276 IsEmpty]: Start isEmpty. Operand 47042 states and 67058 transitions. [2024-11-08 16:05:22,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:05:22,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:22,896 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:22,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-08 16:05:22,896 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:22,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:22,897 INFO L85 PathProgramCache]: Analyzing trace with hash 331820101, now seen corresponding path program 1 times [2024-11-08 16:05:22,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:22,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304350143] [2024-11-08 16:05:22,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:22,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:22,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:23,137 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:23,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:23,138 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304350143] [2024-11-08 16:05:23,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304350143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:23,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:23,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:23,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508761499] [2024-11-08 16:05:23,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:23,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:23,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:23,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:23,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:23,141 INFO L87 Difference]: Start difference. First operand 47042 states and 67058 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-08 16:05:24,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:24,658 INFO L93 Difference]: Finished difference Result 78684 states and 112427 transitions. [2024-11-08 16:05:24,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:24,659 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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 92 [2024-11-08 16:05:24,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:24,706 INFO L225 Difference]: With dead ends: 78684 [2024-11-08 16:05:24,707 INFO L226 Difference]: Without dead ends: 33946 [2024-11-08 16:05:24,754 INFO L431 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 [2024-11-08 16:05:24,754 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 58 mSDsluCounter, 1550 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3163 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:24,755 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3163 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:24,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33946 states. [2024-11-08 16:05:26,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33946 to 33944. [2024-11-08 16:05:26,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33944 states, 33942 states have (on average 1.4304401626303695) internal successors, (48552), 33943 states have internal predecessors, (48552), 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) [2024-11-08 16:05:26,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33944 states to 33944 states and 48552 transitions. [2024-11-08 16:05:26,173 INFO L78 Accepts]: Start accepts. Automaton has 33944 states and 48552 transitions. Word has length 92 [2024-11-08 16:05:26,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:26,173 INFO L471 AbstractCegarLoop]: Abstraction has 33944 states and 48552 transitions. [2024-11-08 16:05:26,173 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 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) [2024-11-08 16:05:26,173 INFO L276 IsEmpty]: Start isEmpty. Operand 33944 states and 48552 transitions. [2024-11-08 16:05:26,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-08 16:05:26,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:26,177 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:26,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-08 16:05:26,177 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:26,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:26,178 INFO L85 PathProgramCache]: Analyzing trace with hash 1942488488, now seen corresponding path program 1 times [2024-11-08 16:05:26,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:26,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685565891] [2024-11-08 16:05:26,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:26,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:26,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:26,488 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:05:26,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:26,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685565891] [2024-11-08 16:05:26,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685565891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:26,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:26,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:05:26,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458820833] [2024-11-08 16:05:26,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:26,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:05:26,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:26,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:05:26,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:05:26,491 INFO L87 Difference]: Start difference. First operand 33944 states and 48552 transitions. Second operand has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 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) [2024-11-08 16:05:28,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:28,737 INFO L93 Difference]: Finished difference Result 63142 states and 90415 transitions. [2024-11-08 16:05:28,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:05:28,738 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 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 92 [2024-11-08 16:05:28,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:28,813 INFO L225 Difference]: With dead ends: 63142 [2024-11-08 16:05:28,813 INFO L226 Difference]: Without dead ends: 58276 [2024-11-08 16:05:28,896 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:05:28,897 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 8125 mSDsluCounter, 2457 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8125 SdHoareTripleChecker+Valid, 4091 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:28,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8125 Valid, 4091 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:05:28,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58276 states. [2024-11-08 16:05:30,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58276 to 38808. [2024-11-08 16:05:30,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38808 states, 38806 states have (on average 1.4292635159511415) internal successors, (55464), 38807 states have internal predecessors, (55464), 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) [2024-11-08 16:05:30,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38808 states to 38808 states and 55464 transitions. [2024-11-08 16:05:30,290 INFO L78 Accepts]: Start accepts. Automaton has 38808 states and 55464 transitions. Word has length 92 [2024-11-08 16:05:30,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:30,290 INFO L471 AbstractCegarLoop]: Abstraction has 38808 states and 55464 transitions. [2024-11-08 16:05:30,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.375) internal successors, (91), 8 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) [2024-11-08 16:05:30,290 INFO L276 IsEmpty]: Start isEmpty. Operand 38808 states and 55464 transitions. [2024-11-08 16:05:30,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-08 16:05:30,294 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:30,294 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:30,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:05:30,295 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:30,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:30,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1668086888, now seen corresponding path program 1 times [2024-11-08 16:05:30,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:30,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841777429] [2024-11-08 16:05:30,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:30,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:30,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:30,425 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:30,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:30,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841777429] [2024-11-08 16:05:30,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841777429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:30,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:30,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:30,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891689456] [2024-11-08 16:05:30,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:30,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:30,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:30,427 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:30,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:30,428 INFO L87 Difference]: Start difference. First operand 38808 states and 55464 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-08 16:05:31,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:31,105 INFO L93 Difference]: Finished difference Result 57052 states and 81386 transitions. [2024-11-08 16:05:31,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:31,106 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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 93 [2024-11-08 16:05:31,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:31,129 INFO L225 Difference]: With dead ends: 57052 [2024-11-08 16:05:31,129 INFO L226 Difference]: Without dead ends: 20570 [2024-11-08 16:05:31,148 INFO L431 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 [2024-11-08 16:05:31,149 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 53 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 3148 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:31,149 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 3148 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:31,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20570 states. [2024-11-08 16:05:31,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20570 to 20568. [2024-11-08 16:05:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20568 states, 20566 states have (on average 1.4248760089468053) internal successors, (29304), 20567 states have internal predecessors, (29304), 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) [2024-11-08 16:05:31,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20568 states to 20568 states and 29304 transitions. [2024-11-08 16:05:31,926 INFO L78 Accepts]: Start accepts. Automaton has 20568 states and 29304 transitions. Word has length 93 [2024-11-08 16:05:31,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:31,927 INFO L471 AbstractCegarLoop]: Abstraction has 20568 states and 29304 transitions. [2024-11-08 16:05:31,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 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) [2024-11-08 16:05:31,927 INFO L276 IsEmpty]: Start isEmpty. Operand 20568 states and 29304 transitions. [2024-11-08 16:05:31,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-11-08 16:05:31,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:31,930 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:31,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-08 16:05:31,930 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:31,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:31,931 INFO L85 PathProgramCache]: Analyzing trace with hash -110826102, now seen corresponding path program 1 times [2024-11-08 16:05:31,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:31,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731717428] [2024-11-08 16:05:31,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:31,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:31,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:32,059 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:32,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:32,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731717428] [2024-11-08 16:05:32,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731717428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:32,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:32,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:32,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998182094] [2024-11-08 16:05:32,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:32,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:32,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:32,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:32,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:32,061 INFO L87 Difference]: Start difference. First operand 20568 states and 29304 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-08 16:05:32,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:32,427 INFO L93 Difference]: Finished difference Result 29692 states and 42146 transitions. [2024-11-08 16:05:32,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:32,428 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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 95 [2024-11-08 16:05:32,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:32,442 INFO L225 Difference]: With dead ends: 29692 [2024-11-08 16:05:32,442 INFO L226 Difference]: Without dead ends: 11450 [2024-11-08 16:05:32,453 INFO L431 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 [2024-11-08 16:05:32,454 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 50 mSDsluCounter, 1534 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 3133 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:32,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 3133 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:32,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11450 states. [2024-11-08 16:05:33,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11450 to 11448. [2024-11-08 16:05:33,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11448 states, 11446 states have (on average 1.427922418312074) internal successors, (16344), 11447 states have internal predecessors, (16344), 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) [2024-11-08 16:05:33,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11448 states to 11448 states and 16344 transitions. [2024-11-08 16:05:33,173 INFO L78 Accepts]: Start accepts. Automaton has 11448 states and 16344 transitions. Word has length 95 [2024-11-08 16:05:33,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:33,174 INFO L471 AbstractCegarLoop]: Abstraction has 11448 states and 16344 transitions. [2024-11-08 16:05:33,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-08 16:05:33,174 INFO L276 IsEmpty]: Start isEmpty. Operand 11448 states and 16344 transitions. [2024-11-08 16:05:33,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-11-08 16:05:33,177 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:33,178 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:33,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 16:05:33,178 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:33,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:33,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2142789116, now seen corresponding path program 1 times [2024-11-08 16:05:33,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:33,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997205698] [2024-11-08 16:05:33,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:33,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:33,349 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:33,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:33,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997205698] [2024-11-08 16:05:33,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997205698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:33,350 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:33,350 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:33,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109429773] [2024-11-08 16:05:33,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:33,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:33,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:33,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:33,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:33,352 INFO L87 Difference]: Start difference. First operand 11448 states and 16344 transitions. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-08 16:05:33,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:33,623 INFO L93 Difference]: Finished difference Result 16012 states and 22706 transitions. [2024-11-08 16:05:33,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:33,624 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 97 [2024-11-08 16:05:33,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:33,632 INFO L225 Difference]: With dead ends: 16012 [2024-11-08 16:05:33,632 INFO L226 Difference]: Without dead ends: 6890 [2024-11-08 16:05:33,639 INFO L431 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 [2024-11-08 16:05:33,639 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 47 mSDsluCounter, 1526 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3118 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:33,640 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3118 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:33,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6890 states. [2024-11-08 16:05:33,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6890 to 6888. [2024-11-08 16:05:33,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6888 states, 6886 states have (on average 1.441185013069997) internal successors, (9924), 6887 states have internal predecessors, (9924), 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) [2024-11-08 16:05:33,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6888 states to 6888 states and 9924 transitions. [2024-11-08 16:05:33,879 INFO L78 Accepts]: Start accepts. Automaton has 6888 states and 9924 transitions. Word has length 97 [2024-11-08 16:05:33,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:33,879 INFO L471 AbstractCegarLoop]: Abstraction has 6888 states and 9924 transitions. [2024-11-08 16:05:33,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-08 16:05:33,880 INFO L276 IsEmpty]: Start isEmpty. Operand 6888 states and 9924 transitions. [2024-11-08 16:05:33,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 16:05:33,882 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:33,882 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:33,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-08 16:05:33,883 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:33,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:33,883 INFO L85 PathProgramCache]: Analyzing trace with hash 1125676270, now seen corresponding path program 1 times [2024-11-08 16:05:33,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:33,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812001505] [2024-11-08 16:05:33,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:33,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:34,103 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:34,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:34,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812001505] [2024-11-08 16:05:34,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812001505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:34,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:34,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:34,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519301979] [2024-11-08 16:05:34,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:34,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:34,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:34,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:34,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:34,107 INFO L87 Difference]: Start difference. First operand 6888 states and 9924 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 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) [2024-11-08 16:05:34,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:34,312 INFO L93 Difference]: Finished difference Result 9172 states and 13076 transitions. [2024-11-08 16:05:34,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:34,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 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 [2024-11-08 16:05:34,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:34,319 INFO L225 Difference]: With dead ends: 9172 [2024-11-08 16:05:34,319 INFO L226 Difference]: Without dead ends: 4610 [2024-11-08 16:05:34,322 INFO L431 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 [2024-11-08 16:05:34,323 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 44 mSDsluCounter, 1518 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3103 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:34,323 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3103 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:34,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4610 states. [2024-11-08 16:05:34,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4610 to 4608. [2024-11-08 16:05:34,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4608 states, 4606 states have (on average 1.4641771602257925) internal successors, (6744), 4607 states have internal predecessors, (6744), 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) [2024-11-08 16:05:34,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4608 states to 4608 states and 6744 transitions. [2024-11-08 16:05:34,450 INFO L78 Accepts]: Start accepts. Automaton has 4608 states and 6744 transitions. Word has length 99 [2024-11-08 16:05:34,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:34,451 INFO L471 AbstractCegarLoop]: Abstraction has 4608 states and 6744 transitions. [2024-11-08 16:05:34,451 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 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) [2024-11-08 16:05:34,451 INFO L276 IsEmpty]: Start isEmpty. Operand 4608 states and 6744 transitions. [2024-11-08 16:05:34,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-08 16:05:34,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:34,453 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:34,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-08 16:05:34,454 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:34,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:34,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1987596896, now seen corresponding path program 1 times [2024-11-08 16:05:34,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:34,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912888687] [2024-11-08 16:05:34,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:34,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:34,581 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:34,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:34,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912888687] [2024-11-08 16:05:34,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912888687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:05:34,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:05:34,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:05:34,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32285189] [2024-11-08 16:05:34,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:05:34,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:05:34,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:34,584 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:05:34,584 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:05:34,584 INFO L87 Difference]: Start difference. First operand 4608 states and 6744 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2024-11-08 16:05:34,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:34,654 INFO L93 Difference]: Finished difference Result 5752 states and 8306 transitions. [2024-11-08 16:05:34,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:05:34,655 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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 101 [2024-11-08 16:05:34,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:34,661 INFO L225 Difference]: With dead ends: 5752 [2024-11-08 16:05:34,661 INFO L226 Difference]: Without dead ends: 3470 [2024-11-08 16:05:34,663 INFO L431 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 [2024-11-08 16:05:34,664 INFO L432 NwaCegarLoop]: 1578 mSDtfsCounter, 41 mSDsluCounter, 1510 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3088 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:34,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3088 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:05:34,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2024-11-08 16:05:34,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 3468. [2024-11-08 16:05:34,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3468 states, 3466 states have (on average 1.4913444893248702) internal successors, (5169), 3467 states have internal predecessors, (5169), 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) [2024-11-08 16:05:34,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 5169 transitions. [2024-11-08 16:05:34,747 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 5169 transitions. Word has length 101 [2024-11-08 16:05:34,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:34,747 INFO L471 AbstractCegarLoop]: Abstraction has 3468 states and 5169 transitions. [2024-11-08 16:05:34,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2024-11-08 16:05:34,751 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 5169 transitions. [2024-11-08 16:05:34,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-08 16:05:34,753 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:34,753 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:34,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-08 16:05:34,753 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:34,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:34,754 INFO L85 PathProgramCache]: Analyzing trace with hash -567077294, now seen corresponding path program 1 times [2024-11-08 16:05:34,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:34,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692200329] [2024-11-08 16:05:34,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:34,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:34,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:35,898 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 7 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:35,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:35,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692200329] [2024-11-08 16:05:35,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692200329] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:05:35,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1866210600] [2024-11-08 16:05:35,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:35,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:35,900 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:05:35,902 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:05:35,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:05:36,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:36,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 16:05:36,120 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:05:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:36,998 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:05:38,443 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:38,443 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1866210600] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:05:38,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:05:38,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-11-08 16:05:38,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878693792] [2024-11-08 16:05:38,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:05:38,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-08 16:05:38,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:38,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-08 16:05:38,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2024-11-08 16:05:38,448 INFO L87 Difference]: Start difference. First operand 3468 states and 5169 transitions. Second operand has 29 states, 29 states have (on average 9.551724137931034) internal successors, (277), 28 states have internal predecessors, (277), 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) [2024-11-08 16:05:41,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:41,658 INFO L93 Difference]: Finished difference Result 9272 states and 13141 transitions. [2024-11-08 16:05:41,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-08 16:05:41,659 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.551724137931034) internal successors, (277), 28 states have internal predecessors, (277), 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 103 [2024-11-08 16:05:41,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:41,670 INFO L225 Difference]: With dead ends: 9272 [2024-11-08 16:05:41,670 INFO L226 Difference]: Without dead ends: 8130 [2024-11-08 16:05:41,675 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1125 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=947, Invalid=4023, Unknown=0, NotChecked=0, Total=4970 [2024-11-08 16:05:41,675 INFO L432 NwaCegarLoop]: 1509 mSDtfsCounter, 20020 mSDsluCounter, 6650 mSDsCounter, 0 mSdLazyCounter, 1096 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20020 SdHoareTripleChecker+Valid, 8159 SdHoareTripleChecker+Invalid, 1136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1096 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:41,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20020 Valid, 8159 Invalid, 1136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1096 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:05:41,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8130 states. [2024-11-08 16:05:41,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8130 to 8028. [2024-11-08 16:05:41,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8028 states, 8026 states have (on average 1.4028158484923996) internal successors, (11259), 8027 states have internal predecessors, (11259), 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) [2024-11-08 16:05:41,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8028 states to 8028 states and 11259 transitions. [2024-11-08 16:05:41,964 INFO L78 Accepts]: Start accepts. Automaton has 8028 states and 11259 transitions. Word has length 103 [2024-11-08 16:05:41,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:41,964 INFO L471 AbstractCegarLoop]: Abstraction has 8028 states and 11259 transitions. [2024-11-08 16:05:41,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.551724137931034) internal successors, (277), 28 states have internal predecessors, (277), 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) [2024-11-08 16:05:41,964 INFO L276 IsEmpty]: Start isEmpty. Operand 8028 states and 11259 transitions. [2024-11-08 16:05:41,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-08 16:05:41,967 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:41,967 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:41,988 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:05:42,167 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:42,168 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:42,168 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:42,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1168834280, now seen corresponding path program 1 times [2024-11-08 16:05:42,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:42,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680281181] [2024-11-08 16:05:42,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:42,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:42,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:42,782 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 15 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:42,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:42,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680281181] [2024-11-08 16:05:42,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680281181] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:05:42,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976784744] [2024-11-08 16:05:42,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:42,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:42,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:05:42,785 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:05:42,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:05:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:42,973 INFO L255 TraceCheckSpWp]: Trace formula consists of 496 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 16:05:42,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:05:43,589 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:43,590 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:05:44,762 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:44,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976784744] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:05:44,763 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:05:44,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-08 16:05:44,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433063406] [2024-11-08 16:05:44,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:05:44,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-08 16:05:44,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:44,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-08 16:05:44,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2024-11-08 16:05:44,766 INFO L87 Difference]: Start difference. First operand 8028 states and 11259 transitions. Second operand has 25 states, 25 states have (on average 10.24) internal successors, (256), 24 states have internal predecessors, (256), 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) [2024-11-08 16:05:46,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:46,994 INFO L93 Difference]: Finished difference Result 20976 states and 28609 transitions. [2024-11-08 16:05:46,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 16:05:46,995 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 10.24) internal successors, (256), 24 states have internal predecessors, (256), 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 [2024-11-08 16:05:46,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:47,012 INFO L225 Difference]: With dead ends: 20976 [2024-11-08 16:05:47,012 INFO L226 Difference]: Without dead ends: 15274 [2024-11-08 16:05:47,018 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 537 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=580, Invalid=2176, Unknown=0, NotChecked=0, Total=2756 [2024-11-08 16:05:47,019 INFO L432 NwaCegarLoop]: 1552 mSDtfsCounter, 20514 mSDsluCounter, 5420 mSDsCounter, 0 mSdLazyCounter, 1029 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20514 SdHoareTripleChecker+Valid, 6972 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 1029 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:47,019 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20514 Valid, 6972 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 1029 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 16:05:47,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15274 states. [2024-11-08 16:05:47,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15274 to 15196. [2024-11-08 16:05:47,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15196 states, 15194 states have (on average 1.3621824404370146) internal successors, (20697), 15195 states have internal predecessors, (20697), 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) [2024-11-08 16:05:47,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15196 states to 15196 states and 20697 transitions. [2024-11-08 16:05:47,436 INFO L78 Accepts]: Start accepts. Automaton has 15196 states and 20697 transitions. Word has length 104 [2024-11-08 16:05:47,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:47,437 INFO L471 AbstractCegarLoop]: Abstraction has 15196 states and 20697 transitions. [2024-11-08 16:05:47,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.24) internal successors, (256), 24 states have internal predecessors, (256), 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) [2024-11-08 16:05:47,437 INFO L276 IsEmpty]: Start isEmpty. Operand 15196 states and 20697 transitions. [2024-11-08 16:05:47,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-08 16:05:47,439 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:47,439 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:47,460 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:05:47,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:47,640 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:47,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:47,641 INFO L85 PathProgramCache]: Analyzing trace with hash -507007676, now seen corresponding path program 1 times [2024-11-08 16:05:47,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:47,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [939836219] [2024-11-08 16:05:47,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:47,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:47,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:48,165 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:48,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:48,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [939836219] [2024-11-08 16:05:48,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [939836219] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:05:48,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000291748] [2024-11-08 16:05:48,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:48,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:48,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:05:48,168 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:05:48,173 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:05:48,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:48,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 498 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 16:05:48,457 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:05:49,327 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:49,328 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:05:51,048 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:51,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000291748] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:05:51,048 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:05:51,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 31 [2024-11-08 16:05:51,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962396394] [2024-11-08 16:05:51,049 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:05:51,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 16:05:51,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:51,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 16:05:51,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=791, Unknown=0, NotChecked=0, Total=930 [2024-11-08 16:05:51,051 INFO L87 Difference]: Start difference. First operand 15196 states and 20697 transitions. Second operand has 31 states, 31 states have (on average 9.387096774193548) internal successors, (291), 31 states have internal predecessors, (291), 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) [2024-11-08 16:05:54,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:05:54,665 INFO L93 Difference]: Finished difference Result 42542 states and 57112 transitions. [2024-11-08 16:05:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-08 16:05:54,666 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 9.387096774193548) internal successors, (291), 31 states have internal predecessors, (291), 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 105 [2024-11-08 16:05:54,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:05:54,689 INFO L225 Difference]: With dead ends: 42542 [2024-11-08 16:05:54,689 INFO L226 Difference]: Without dead ends: 29680 [2024-11-08 16:05:54,698 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1139 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1014, Invalid=4098, Unknown=0, NotChecked=0, Total=5112 [2024-11-08 16:05:54,698 INFO L432 NwaCegarLoop]: 1533 mSDtfsCounter, 23428 mSDsluCounter, 8347 mSDsCounter, 0 mSdLazyCounter, 1226 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23428 SdHoareTripleChecker+Valid, 9880 SdHoareTripleChecker+Invalid, 1264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:05:54,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23428 Valid, 9880 Invalid, 1264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1226 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:05:54,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29680 states. [2024-11-08 16:05:55,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29680 to 26864. [2024-11-08 16:05:55,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26864 states, 26862 states have (on average 1.3220906857270494) internal successors, (35514), 26863 states have internal predecessors, (35514), 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) [2024-11-08 16:05:55,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26864 states to 26864 states and 35514 transitions. [2024-11-08 16:05:55,597 INFO L78 Accepts]: Start accepts. Automaton has 26864 states and 35514 transitions. Word has length 105 [2024-11-08 16:05:55,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:05:55,597 INFO L471 AbstractCegarLoop]: Abstraction has 26864 states and 35514 transitions. [2024-11-08 16:05:55,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 9.387096774193548) internal successors, (291), 31 states have internal predecessors, (291), 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) [2024-11-08 16:05:55,597 INFO L276 IsEmpty]: Start isEmpty. Operand 26864 states and 35514 transitions. [2024-11-08 16:05:55,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-08 16:05:55,600 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:05:55,601 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:05:55,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:05:55,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:55,802 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:05:55,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:05:55,802 INFO L85 PathProgramCache]: Analyzing trace with hash -40757452, now seen corresponding path program 1 times [2024-11-08 16:05:55,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:05:55,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063827997] [2024-11-08 16:05:55,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:55,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:05:55,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:56,393 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:56,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:05:56,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063827997] [2024-11-08 16:05:56,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063827997] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:05:56,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023267552] [2024-11-08 16:05:56,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:05:56,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:05:56,394 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:05:56,396 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:05:56,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:05:56,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:05:56,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-08 16:05:56,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:05:57,509 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:57,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:05:59,096 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:05:59,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023267552] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:05:59,096 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:05:59,097 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 30 [2024-11-08 16:05:59,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254819716] [2024-11-08 16:05:59,097 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:05:59,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-08 16:05:59,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:05:59,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-08 16:05:59,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=708, Unknown=0, NotChecked=0, Total=870 [2024-11-08 16:05:59,099 INFO L87 Difference]: Start difference. First operand 26864 states and 35514 transitions. Second operand has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 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) [2024-11-08 16:06:01,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:06:01,814 INFO L93 Difference]: Finished difference Result 77654 states and 101869 transitions. [2024-11-08 16:06:01,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 16:06:01,814 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 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 107 [2024-11-08 16:06:01,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:06:01,860 INFO L225 Difference]: With dead ends: 77654 [2024-11-08 16:06:01,860 INFO L226 Difference]: Without dead ends: 53124 [2024-11-08 16:06:01,876 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=472, Invalid=1508, Unknown=0, NotChecked=0, Total=1980 [2024-11-08 16:06:01,876 INFO L432 NwaCegarLoop]: 1542 mSDtfsCounter, 12248 mSDsluCounter, 6709 mSDsCounter, 0 mSdLazyCounter, 749 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12248 SdHoareTripleChecker+Valid, 8251 SdHoareTripleChecker+Invalid, 769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 749 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:06:01,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12248 Valid, 8251 Invalid, 769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 749 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:06:01,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53124 states. [2024-11-08 16:06:04,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53124 to 52544. [2024-11-08 16:06:04,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52544 states, 52542 states have (on average 1.299113090479997) internal successors, (68258), 52543 states have internal predecessors, (68258), 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) [2024-11-08 16:06:04,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52544 states to 52544 states and 68258 transitions. [2024-11-08 16:06:04,613 INFO L78 Accepts]: Start accepts. Automaton has 52544 states and 68258 transitions. Word has length 107 [2024-11-08 16:06:04,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:06:04,613 INFO L471 AbstractCegarLoop]: Abstraction has 52544 states and 68258 transitions. [2024-11-08 16:06:04,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 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) [2024-11-08 16:06:04,613 INFO L276 IsEmpty]: Start isEmpty. Operand 52544 states and 68258 transitions. [2024-11-08 16:06:04,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 16:06:04,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:06:04,620 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:06:04,646 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 16:06:04,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-08 16:06:04,824 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:06:04,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:06:04,824 INFO L85 PathProgramCache]: Analyzing trace with hash -426002696, now seen corresponding path program 1 times [2024-11-08 16:06:04,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:06:04,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549816197] [2024-11-08 16:06:04,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:06:04,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:06:04,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:05,843 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:06:05,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:06:05,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549816197] [2024-11-08 16:06:05,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549816197] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:06:05,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254204615] [2024-11-08 16:06:05,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:06:05,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:06:05,844 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:06:05,846 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:06:05,848 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:06:06,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:06:06,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 62 conjuncts are in the unsatisfiable core [2024-11-08 16:06:06,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:06:19,157 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:06:19,157 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:06:32,032 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:06:32,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254204615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:06:32,032 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:06:32,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 36, 29] total 71 [2024-11-08 16:06:32,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399379616] [2024-11-08 16:06:32,032 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:06:32,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2024-11-08 16:06:32,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:06:32,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2024-11-08 16:06:32,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=583, Invalid=4387, Unknown=0, NotChecked=0, Total=4970 [2024-11-08 16:06:32,036 INFO L87 Difference]: Start difference. First operand 52544 states and 68258 transitions. Second operand has 71 states, 71 states have (on average 4.084507042253521) internal successors, (290), 71 states have internal predecessors, (290), 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) [2024-11-08 16:09:37,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:09:37,463 INFO L93 Difference]: Finished difference Result 122985 states and 160076 transitions. [2024-11-08 16:09:37,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 253 states. [2024-11-08 16:09:37,464 INFO L78 Accepts]: Start accepts. Automaton has has 71 states, 71 states have (on average 4.084507042253521) internal successors, (290), 71 states have internal predecessors, (290), 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 108 [2024-11-08 16:09:37,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:09:37,562 INFO L225 Difference]: With dead ends: 122985 [2024-11-08 16:09:37,562 INFO L226 Difference]: Without dead ends: 101911 [2024-11-08 16:09:37,592 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 478 GetRequests, 157 SyntacticMatches, 1 SemanticMatches, 320 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42188 ImplicationChecksByTransitivity, 170.1s TimeCoverageRelationStatistics Valid=16173, Invalid=87189, Unknown=0, NotChecked=0, Total=103362 [2024-11-08 16:09:37,592 INFO L432 NwaCegarLoop]: 1588 mSDtfsCounter, 29698 mSDsluCounter, 32882 mSDsCounter, 0 mSdLazyCounter, 11510 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29698 SdHoareTripleChecker+Valid, 34470 SdHoareTripleChecker+Invalid, 11663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 11510 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 19.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:09:37,593 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29698 Valid, 34470 Invalid, 11663 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [153 Valid, 11510 Invalid, 0 Unknown, 0 Unchecked, 19.2s Time] [2024-11-08 16:09:37,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101911 states. [2024-11-08 16:09:39,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101911 to 50358. [2024-11-08 16:09:39,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50358 states, 50356 states have (on average 1.2969457462864404) internal successors, (65309), 50357 states have internal predecessors, (65309), 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) [2024-11-08 16:09:39,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50358 states to 50358 states and 65309 transitions. [2024-11-08 16:09:39,978 INFO L78 Accepts]: Start accepts. Automaton has 50358 states and 65309 transitions. Word has length 108 [2024-11-08 16:09:39,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:09:39,979 INFO L471 AbstractCegarLoop]: Abstraction has 50358 states and 65309 transitions. [2024-11-08 16:09:39,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 4.084507042253521) internal successors, (290), 71 states have internal predecessors, (290), 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) [2024-11-08 16:09:39,979 INFO L276 IsEmpty]: Start isEmpty. Operand 50358 states and 65309 transitions. [2024-11-08 16:09:39,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 16:09:39,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:09:39,984 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:09:40,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:09:40,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:40,189 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:09:40,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:09:40,189 INFO L85 PathProgramCache]: Analyzing trace with hash 2114721236, now seen corresponding path program 1 times [2024-11-08 16:09:40,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:09:40,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303126645] [2024-11-08 16:09:40,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:40,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:09:40,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:45,901 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:45,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:09:45,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303126645] [2024-11-08 16:09:45,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303126645] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:09:45,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202992843] [2024-11-08 16:09:45,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:09:45,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:09:45,902 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:09:45,903 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:09:45,904 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:09:46,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:09:46,098 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 16:09:46,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:09:47,407 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:47,407 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:09:48,900 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:09:48,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202992843] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:09:48,901 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:09:48,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 12, 12] total 56 [2024-11-08 16:09:48,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290318444] [2024-11-08 16:09:48,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:09:48,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2024-11-08 16:09:48,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:09:48,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2024-11-08 16:09:48,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=2896, Unknown=0, NotChecked=0, Total=3080 [2024-11-08 16:09:48,903 INFO L87 Difference]: Start difference. First operand 50358 states and 65309 transitions. Second operand has 56 states, 56 states have (on average 5.482142857142857) internal successors, (307), 56 states have internal predecessors, (307), 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) [2024-11-08 16:12:25,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:25,073 INFO L93 Difference]: Finished difference Result 76384 states and 97952 transitions. [2024-11-08 16:12:25,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2024-11-08 16:12:25,074 INFO L78 Accepts]: Start accepts. Automaton has has 56 states, 56 states have (on average 5.482142857142857) internal successors, (307), 56 states have internal predecessors, (307), 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 108 [2024-11-08 16:12:25,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:25,136 INFO L225 Difference]: With dead ends: 76384 [2024-11-08 16:12:25,136 INFO L226 Difference]: Without dead ends: 60486 [2024-11-08 16:12:25,160 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 366 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55255 ImplicationChecksByTransitivity, 140.0s TimeCoverageRelationStatistics Valid=24397, Invalid=110659, Unknown=0, NotChecked=0, Total=135056 [2024-11-08 16:12:25,160 INFO L432 NwaCegarLoop]: 1733 mSDtfsCounter, 29870 mSDsluCounter, 41184 mSDsCounter, 0 mSdLazyCounter, 12319 mSolverCounterSat, 203 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29870 SdHoareTripleChecker+Valid, 42917 SdHoareTripleChecker+Invalid, 12522 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 203 IncrementalHoareTripleChecker+Valid, 12319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:12:25,161 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [29870 Valid, 42917 Invalid, 12522 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [203 Valid, 12319 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2024-11-08 16:12:25,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60486 states. [2024-11-08 16:12:27,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60486 to 48054. [2024-11-08 16:12:27,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48054 states, 48052 states have (on average 1.2952010322151004) internal successors, (62237), 48053 states have internal predecessors, (62237), 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) [2024-11-08 16:12:27,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48054 states to 48054 states and 62237 transitions. [2024-11-08 16:12:27,886 INFO L78 Accepts]: Start accepts. Automaton has 48054 states and 62237 transitions. Word has length 108 [2024-11-08 16:12:27,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:12:27,886 INFO L471 AbstractCegarLoop]: Abstraction has 48054 states and 62237 transitions. [2024-11-08 16:12:27,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 5.482142857142857) internal successors, (307), 56 states have internal predecessors, (307), 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) [2024-11-08 16:12:27,887 INFO L276 IsEmpty]: Start isEmpty. Operand 48054 states and 62237 transitions. [2024-11-08 16:12:27,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-08 16:12:27,889 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:12:27,890 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:12:27,906 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-08 16:12:28,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:12:28,090 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:12:28,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:12:28,091 INFO L85 PathProgramCache]: Analyzing trace with hash 1590864376, now seen corresponding path program 1 times [2024-11-08 16:12:28,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:12:28,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340576837] [2024-11-08 16:12:28,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:28,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:12:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:29,563 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 9 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:12:29,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:12:29,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340576837] [2024-11-08 16:12:29,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340576837] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:12:29,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [249780387] [2024-11-08 16:12:29,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:29,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:12:29,564 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:12:29,567 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:12:29,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:12:29,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:29,781 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 16:12:29,784 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:12:30,818 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:12:30,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:12:32,002 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:12:32,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [249780387] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:12:32,003 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:12:32,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 12] total 32 [2024-11-08 16:12:32,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404970590] [2024-11-08 16:12:32,003 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:12:32,004 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-08 16:12:32,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:12:32,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-08 16:12:32,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=883, Unknown=0, NotChecked=0, Total=992 [2024-11-08 16:12:32,008 INFO L87 Difference]: Start difference. First operand 48054 states and 62237 transitions. Second operand has 32 states, 32 states have (on average 8.8125) internal successors, (282), 32 states have internal predecessors, (282), 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) [2024-11-08 16:12:43,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:43,552 INFO L93 Difference]: Finished difference Result 100870 states and 129265 transitions. [2024-11-08 16:12:43,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2024-11-08 16:12:43,553 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 8.8125) internal successors, (282), 32 states have internal predecessors, (282), 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 108 [2024-11-08 16:12:43,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:43,628 INFO L225 Difference]: With dead ends: 100870 [2024-11-08 16:12:43,629 INFO L226 Difference]: Without dead ends: 79292 [2024-11-08 16:12:43,644 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2111 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1533, Invalid=6123, Unknown=0, NotChecked=0, Total=7656 [2024-11-08 16:12:43,645 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 15873 mSDsluCounter, 20863 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15873 SdHoareTripleChecker+Valid, 22449 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:12:43,646 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15873 Valid, 22449 Invalid, 2238 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [52 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-08 16:12:43,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79292 states. [2024-11-08 16:12:46,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79292 to 43093. [2024-11-08 16:12:46,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43093 states, 43091 states have (on average 1.292752546935555) internal successors, (55706), 43092 states have internal predecessors, (55706), 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) [2024-11-08 16:12:46,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43093 states to 43093 states and 55706 transitions. [2024-11-08 16:12:46,246 INFO L78 Accepts]: Start accepts. Automaton has 43093 states and 55706 transitions. Word has length 108 [2024-11-08 16:12:46,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:12:46,246 INFO L471 AbstractCegarLoop]: Abstraction has 43093 states and 55706 transitions. [2024-11-08 16:12:46,247 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 8.8125) internal successors, (282), 32 states have internal predecessors, (282), 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) [2024-11-08 16:12:46,247 INFO L276 IsEmpty]: Start isEmpty. Operand 43093 states and 55706 transitions. [2024-11-08 16:12:46,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-08 16:12:46,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:12:46,249 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-08 16:12:46,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-08 16:12:46,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:12:46,450 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:12:46,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:12:46,450 INFO L85 PathProgramCache]: Analyzing trace with hash -1868313470, now seen corresponding path program 1 times [2024-11-08 16:12:46,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:12:46,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011037670] [2024-11-08 16:12:46,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:46,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:12:46,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:46,865 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:12:46,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:12:46,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011037670] [2024-11-08 16:12:46,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011037670] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:12:46,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062005472] [2024-11-08 16:12:46,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:12:46,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:12:46,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:12:46,868 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:12:46,870 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eeeb16ac-e29d-42e5-8005-ee9276334842/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 16:12:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:12:47,103 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 16:12:47,106 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:12:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:12:47,386 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:12:47,711 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 4 proven. 13 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:12:47,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062005472] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:12:47,711 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:12:47,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-11-08 16:12:47,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081499018] [2024-11-08 16:12:47,712 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:12:47,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:12:47,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:12:47,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:12:47,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:12:47,714 INFO L87 Difference]: Start difference. First operand 43093 states and 55706 transitions. Second operand has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 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) [2024-11-08 16:12:55,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:12:55,953 INFO L93 Difference]: Finished difference Result 150356 states and 190819 transitions. [2024-11-08 16:12:55,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 16:12:55,954 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 26.88888888888889) internal successors, (242), 9 states have internal predecessors, (242), 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 109 [2024-11-08 16:12:55,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:12:56,250 INFO L225 Difference]: With dead ends: 150356 [2024-11-08 16:12:56,251 INFO L226 Difference]: Without dead ends: 109603 [2024-11-08 16:12:56,277 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=66, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:12:56,277 INFO L432 NwaCegarLoop]: 1579 mSDtfsCounter, 5978 mSDsluCounter, 5010 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5978 SdHoareTripleChecker+Valid, 6589 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:12:56,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5978 Valid, 6589 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:12:56,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109603 states.