./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/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_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/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_7ed2db74-5376-4776-ad28-b021984321d6/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 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 16:13:49,932 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 16:13:50,023 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 16:13:50,029 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 16:13:50,033 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 16:13:50,066 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 16:13:50,066 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 16:13:50,067 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 16:13:50,068 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 16:13:50,068 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 16:13:50,069 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 16:13:50,069 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 16:13:50,070 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 16:13:50,071 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 16:13:50,071 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 16:13:50,072 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 16:13:50,072 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 16:13:50,073 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 16:13:50,073 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 16:13:50,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 16:13:50,074 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 16:13:50,075 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 16:13:50,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 16:13:50,076 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 16:13:50,076 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 16:13:50,077 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 16:13:50,077 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 16:13:50,078 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 16:13:50,078 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 16:13:50,079 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 16:13:50,079 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 16:13:50,080 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 16:13:50,080 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:13:50,081 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 16:13:50,081 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 16:13:50,082 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 16:13:50,082 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 16:13:50,083 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 16:13:50,083 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 16:13:50,084 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 16:13:50,084 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 16:13:50,085 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 16:13:50,085 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_7ed2db74-5376-4776-ad28-b021984321d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0fdcb64865aeb8184805095bc8dbe7392078d445cf902388dac9d1ca4533bb8c [2024-11-08 16:13:50,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 16:13:50,419 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 16:13:50,422 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 16:13:50,424 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 16:13:50,425 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 16:13:50,427 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i Unable to find full path for "g++" [2024-11-08 16:13:53,081 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 16:13:53,447 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 16:13:53,448 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i [2024-11-08 16:13:53,485 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/data/ee28704e7/051e28cf65714a64ab9b43dca6b5953e/FLAGa5354114b [2024-11-08 16:13:53,504 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/data/ee28704e7/051e28cf65714a64ab9b43dca6b5953e [2024-11-08 16:13:53,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 16:13:53,510 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 16:13:53,511 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 16:13:53,512 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 16:13:53,521 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 16:13:53,522 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:13:53" (1/1) ... [2024-11-08 16:13:53,523 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25f60c22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:53, skipping insertion in model container [2024-11-08 16:13:53,523 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 04:13:53" (1/1) ... [2024-11-08 16:13:53,615 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 16:13:54,311 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_7ed2db74-5376-4776-ad28-b021984321d6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i[37435,37448] [2024-11-08 16:13:54,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:13:54,594 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 16:13:54,674 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_7ed2db74-5376-4776-ad28-b021984321d6/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test2-2.i[37435,37448] [2024-11-08 16:13:54,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 16:13:54,814 INFO L204 MainTranslator]: Completed translation [2024-11-08 16:13:54,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54 WrapperNode [2024-11-08 16:13:54,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 16:13:54,816 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 16:13:54,817 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 16:13:54,817 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 16:13:54,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:54,889 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:55,054 INFO L138 Inliner]: procedures = 207, calls = 272, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1408 [2024-11-08 16:13:55,055 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 16:13:55,056 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 16:13:55,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 16:13:55,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 16:13:55,083 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:55,083 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:55,103 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:55,219 INFO L175 MemorySlicer]: Split 254 memory accesses to 3 slices as follows [2, 218, 34]. 86 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 54 writes are split as follows [0, 50, 4]. [2024-11-08 16:13:55,220 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:55,220 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:55,277 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:55,315 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:55,324 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:55,339 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:55,361 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 16:13:55,365 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 16:13:55,366 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 16:13:55,366 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 16:13:55,367 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (1/1) ... [2024-11-08 16:13:55,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 16:13:55,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:13:55,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 16:13:55,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 16:13:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 16:13:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 16:13:55,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-08 16:13:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 16:13:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 16:13:55,480 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-08 16:13:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 16:13:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 16:13:55,481 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 16:13:55,482 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-08 16:13:55,484 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 16:13:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 16:13:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 16:13:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-08 16:13:55,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 16:13:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 16:13:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-08 16:13:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 16:13:55,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 16:13:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 16:13:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 16:13:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-08 16:13:55,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 16:13:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 16:13:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-08 16:13:55,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 16:13:55,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 16:13:55,852 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 16:13:55,855 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 16:13:58,203 INFO L? ?]: Removed 324 outVars from TransFormulas that were not future-live. [2024-11-08 16:13:58,204 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 16:13:58,245 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 16:13:58,249 INFO L316 CfgBuilder]: Removed 58 assume(true) statements. [2024-11-08 16:13:58,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:13:58 BoogieIcfgContainer [2024-11-08 16:13:58,250 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 16:13:58,253 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 16:13:58,255 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 16:13:58,259 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 16:13:58,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 04:13:53" (1/3) ... [2024-11-08 16:13:58,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ba1c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:13:58, skipping insertion in model container [2024-11-08 16:13:58,261 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 04:13:54" (2/3) ... [2024-11-08 16:13:58,262 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48ba1c87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 04:13:58, skipping insertion in model container [2024-11-08 16:13:58,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 04:13:58" (3/3) ... [2024-11-08 16:13:58,263 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test2-2.i [2024-11-08 16:13:58,287 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 16:13:58,287 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 16:13:58,383 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 16:13:58,392 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;@2372ec4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 16:13:58,393 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 16:13:58,400 INFO L276 IsEmpty]: Start isEmpty. Operand has 404 states, 398 states have (on average 1.6155778894472361) internal successors, (643), 399 states have internal predecessors, (643), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:13:58,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 16:13:58,409 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:13:58,410 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:13:58,412 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:13:58,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:13:58,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1101289882, now seen corresponding path program 1 times [2024-11-08 16:13:58,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:13:58,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255342452] [2024-11-08 16:13:58,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:13:58,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:13:58,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:58,721 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 16:13:58,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:13:58,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255342452] [2024-11-08 16:13:58,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255342452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:13:58,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:13:58,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 16:13:58,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067682976] [2024-11-08 16:13:58,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:13:58,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 16:13:58,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:13:58,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 16:13:58,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 16:13:58,787 INFO L87 Difference]: Start difference. First operand has 404 states, 398 states have (on average 1.6155778894472361) internal successors, (643), 399 states have internal predecessors, (643), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:13:58,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:13:58,883 INFO L93 Difference]: Finished difference Result 805 states and 1294 transitions. [2024-11-08 16:13:58,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 16:13:58,890 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2024-11-08 16:13:58,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:13:58,911 INFO L225 Difference]: With dead ends: 805 [2024-11-08 16:13:58,912 INFO L226 Difference]: Without dead ends: 365 [2024-11-08 16:13:58,918 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 16:13:58,923 INFO L432 NwaCegarLoop]: 586 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, 586 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:13:58,927 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 16:13:58,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-08 16:13:58,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-11-08 16:13:59,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 360 states have (on average 1.461111111111111) internal successors, (526), 360 states have internal predecessors, (526), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:13:59,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 532 transitions. [2024-11-08 16:13:59,016 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 532 transitions. Word has length 11 [2024-11-08 16:13:59,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:13:59,016 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 532 transitions. [2024-11-08 16:13:59,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 16:13:59,017 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 532 transitions. [2024-11-08 16:13:59,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 16:13:59,023 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:13:59,023 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] [2024-11-08 16:13:59,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 16:13:59,024 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:13:59,027 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:13:59,027 INFO L85 PathProgramCache]: Analyzing trace with hash -176217900, now seen corresponding path program 1 times [2024-11-08 16:13:59,027 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:13:59,028 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118719558] [2024-11-08 16:13:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:13:59,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:13:59,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:13:59,684 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 16:13:59,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:13:59,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118719558] [2024-11-08 16:13:59,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118719558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:13:59,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:13:59,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 16:13:59,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332554689] [2024-11-08 16:13:59,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:13:59,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 16:13:59,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:13:59,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 16:13:59,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:13:59,690 INFO L87 Difference]: Start difference. First operand 365 states and 532 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 16:13:59,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:13:59,921 INFO L93 Difference]: Finished difference Result 482 states and 701 transitions. [2024-11-08 16:13:59,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:13:59,923 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-08 16:13:59,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:13:59,927 INFO L225 Difference]: With dead ends: 482 [2024-11-08 16:13:59,930 INFO L226 Difference]: Without dead ends: 322 [2024-11-08 16:13:59,931 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 16:13:59,933 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 12 mSDsluCounter, 1252 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:13:59,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1679 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:13:59,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-08 16:13:59,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-11-08 16:13:59,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.4100946372239747) internal successors, (447), 317 states have internal predecessors, (447), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:13:59,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 453 transitions. [2024-11-08 16:13:59,991 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 453 transitions. Word has length 66 [2024-11-08 16:13:59,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:13:59,992 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 453 transitions. [2024-11-08 16:13:59,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 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 16:13:59,992 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 453 transitions. [2024-11-08 16:13:59,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 16:13:59,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:13:59,998 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] [2024-11-08 16:13:59,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 16:13:59,999 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:00,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:00,002 INFO L85 PathProgramCache]: Analyzing trace with hash 2068909410, now seen corresponding path program 1 times [2024-11-08 16:14:00,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:00,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372342150] [2024-11-08 16:14:00,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:00,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:00,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:00,330 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 16:14:00,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:00,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372342150] [2024-11-08 16:14:00,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372342150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:00,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:00,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:14:00,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651578374] [2024-11-08 16:14:00,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:00,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:00,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:00,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:00,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:00,342 INFO L87 Difference]: Start difference. First operand 322 states and 453 transitions. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 16:14:00,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:00,437 INFO L93 Difference]: Finished difference Result 439 states and 611 transitions. [2024-11-08 16:14:00,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:00,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-08 16:14:00,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:00,440 INFO L225 Difference]: With dead ends: 439 [2024-11-08 16:14:00,441 INFO L226 Difference]: Without dead ends: 322 [2024-11-08 16:14:00,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 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 16:14:00,443 INFO L432 NwaCegarLoop]: 441 mSDtfsCounter, 1 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:00,444 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 860 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:14:00,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2024-11-08 16:14:00,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2024-11-08 16:14:00,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 317 states have (on average 1.4006309148264984) internal successors, (444), 317 states have internal predecessors, (444), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:00,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 450 transitions. [2024-11-08 16:14:00,464 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 450 transitions. Word has length 66 [2024-11-08 16:14:00,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:00,465 INFO L471 AbstractCegarLoop]: Abstraction has 322 states and 450 transitions. [2024-11-08 16:14:00,466 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 0 states have call successors, (0), 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 16:14:00,466 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 450 transitions. [2024-11-08 16:14:00,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2024-11-08 16:14:00,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:00,469 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] [2024-11-08 16:14:00,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 16:14:00,469 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:00,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:00,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1309665826, now seen corresponding path program 1 times [2024-11-08 16:14:00,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:00,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763613229] [2024-11-08 16:14:00,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:00,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:00,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:01,190 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 16:14:01,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:01,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763613229] [2024-11-08 16:14:01,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1763613229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:01,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:01,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:14:01,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109407824] [2024-11-08 16:14:01,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:01,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:14:01,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:01,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:14:01,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:14:01,195 INFO L87 Difference]: Start difference. First operand 322 states and 450 transitions. Second operand has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 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 16:14:01,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:01,485 INFO L93 Difference]: Finished difference Result 756 states and 1050 transitions. [2024-11-08 16:14:01,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:01,486 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2024-11-08 16:14:01,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:01,493 INFO L225 Difference]: With dead ends: 756 [2024-11-08 16:14:01,494 INFO L226 Difference]: Without dead ends: 636 [2024-11-08 16:14:01,494 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:14:01,496 INFO L432 NwaCegarLoop]: 434 mSDtfsCounter, 431 mSDsluCounter, 2152 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 434 SdHoareTripleChecker+Valid, 2586 SdHoareTripleChecker+Invalid, 96 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:01,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [434 Valid, 2586 Invalid, 96 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:14:01,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 636 states. [2024-11-08 16:14:01,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 636 to 324. [2024-11-08 16:14:01,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 319 states have (on average 1.3981191222570533) internal successors, (446), 319 states have internal predecessors, (446), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:01,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 452 transitions. [2024-11-08 16:14:01,532 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 452 transitions. Word has length 66 [2024-11-08 16:14:01,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:01,535 INFO L471 AbstractCegarLoop]: Abstraction has 324 states and 452 transitions. [2024-11-08 16:14:01,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.428571428571429) internal successors, (66), 7 states have internal predecessors, (66), 0 states have call successors, (0), 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 16:14:01,535 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 452 transitions. [2024-11-08 16:14:01,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-08 16:14:01,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:01,544 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:01,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 16:14:01,547 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:01,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:01,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1432733550, now seen corresponding path program 1 times [2024-11-08 16:14:01,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:01,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128870994] [2024-11-08 16:14:01,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:01,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:01,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:02,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:02,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:02,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128870994] [2024-11-08 16:14:02,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128870994] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:02,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:02,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:14:02,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639295429] [2024-11-08 16:14:02,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:02,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:14:02,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:02,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:14:02,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:14:02,129 INFO L87 Difference]: Start difference. First operand 324 states and 452 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 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 16:14:02,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:02,273 INFO L93 Difference]: Finished difference Result 600 states and 831 transitions. [2024-11-08 16:14:02,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 16:14:02,274 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-08 16:14:02,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:02,278 INFO L225 Difference]: With dead ends: 600 [2024-11-08 16:14:02,278 INFO L226 Difference]: Without dead ends: 281 [2024-11-08 16:14:02,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 16:14:02,283 INFO L432 NwaCegarLoop]: 343 mSDtfsCounter, 30 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 1010 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:02,283 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 1010 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:14:02,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2024-11-08 16:14:02,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2024-11-08 16:14:02,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 276 states have (on average 1.3297101449275361) internal successors, (367), 276 states have internal predecessors, (367), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:02,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 373 transitions. [2024-11-08 16:14:02,307 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 373 transitions. Word has length 142 [2024-11-08 16:14:02,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:02,308 INFO L471 AbstractCegarLoop]: Abstraction has 281 states and 373 transitions. [2024-11-08 16:14:02,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 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 16:14:02,309 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 373 transitions. [2024-11-08 16:14:02,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-08 16:14:02,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:02,312 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:02,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 16:14:02,313 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:02,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:02,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1934720738, now seen corresponding path program 1 times [2024-11-08 16:14:02,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:02,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589481269] [2024-11-08 16:14:02,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:02,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:02,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:02,649 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:02,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:02,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589481269] [2024-11-08 16:14:02,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [589481269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:02,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:02,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 16:14:02,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165551647] [2024-11-08 16:14:02,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:02,651 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 16:14:02,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:02,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 16:14:02,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 16:14:02,656 INFO L87 Difference]: Start difference. First operand 281 states and 373 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 16:14:02,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:02,751 INFO L93 Difference]: Finished difference Result 739 states and 984 transitions. [2024-11-08 16:14:02,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 16:14:02,752 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-08 16:14:02,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:02,755 INFO L225 Difference]: With dead ends: 739 [2024-11-08 16:14:02,756 INFO L226 Difference]: Without dead ends: 463 [2024-11-08 16:14:02,757 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 16:14:02,759 INFO L432 NwaCegarLoop]: 472 mSDtfsCounter, 177 mSDsluCounter, 347 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 819 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:02,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 819 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:14:02,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-08 16:14:02,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 461. [2024-11-08 16:14:02,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 456 states have (on average 1.331140350877193) internal successors, (607), 456 states have internal predecessors, (607), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:02,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 613 transitions. [2024-11-08 16:14:02,786 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 613 transitions. Word has length 142 [2024-11-08 16:14:02,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:02,788 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 613 transitions. [2024-11-08 16:14:02,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 16:14:02,789 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 613 transitions. [2024-11-08 16:14:02,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 16:14:02,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:02,792 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:02,792 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 16:14:02,792 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:02,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:02,793 INFO L85 PathProgramCache]: Analyzing trace with hash 2050773153, now seen corresponding path program 1 times [2024-11-08 16:14:02,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:02,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801537987] [2024-11-08 16:14:02,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:02,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:03,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 16:14:03,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:03,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 16:14:03,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:03,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:14:03,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:03,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801537987] [2024-11-08 16:14:03,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801537987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:03,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:03,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 16:14:03,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262948332] [2024-11-08 16:14:03,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:03,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:14:03,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:03,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:14:03,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:14:03,320 INFO L87 Difference]: Start difference. First operand 461 states and 613 transitions. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:03,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:03,759 INFO L93 Difference]: Finished difference Result 890 states and 1193 transitions. [2024-11-08 16:14:03,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:14:03,760 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 157 [2024-11-08 16:14:03,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:03,765 INFO L225 Difference]: With dead ends: 890 [2024-11-08 16:14:03,765 INFO L226 Difference]: Without dead ends: 464 [2024-11-08 16:14:03,766 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 16:14:03,767 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 3 mSDsluCounter, 638 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:03,767 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 993 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:14:03,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-08 16:14:03,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 461. [2024-11-08 16:14:03,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 461 states, 456 states have (on average 1.3179824561403508) internal successors, (601), 456 states have internal predecessors, (601), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:03,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 461 states to 461 states and 607 transitions. [2024-11-08 16:14:03,787 INFO L78 Accepts]: Start accepts. Automaton has 461 states and 607 transitions. Word has length 157 [2024-11-08 16:14:03,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:03,788 INFO L471 AbstractCegarLoop]: Abstraction has 461 states and 607 transitions. [2024-11-08 16:14:03,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 3 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:03,788 INFO L276 IsEmpty]: Start isEmpty. Operand 461 states and 607 transitions. [2024-11-08 16:14:03,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2024-11-08 16:14:03,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:03,791 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:03,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 16:14:03,791 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:03,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:03,792 INFO L85 PathProgramCache]: Analyzing trace with hash -1537597537, now seen corresponding path program 1 times [2024-11-08 16:14:03,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:03,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539025888] [2024-11-08 16:14:03,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:03,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:04,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 16:14:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:04,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 16:14:04,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:04,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:14:04,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:04,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539025888] [2024-11-08 16:14:04,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539025888] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:04,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:04,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 16:14:04,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004302674] [2024-11-08 16:14:04,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:04,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:14:04,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:04,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:14:04,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 16:14:04,406 INFO L87 Difference]: Start difference. First operand 461 states and 607 transitions. Second operand has 6 states, 6 states have (on average 25.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:05,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:05,106 INFO L93 Difference]: Finished difference Result 914 states and 1211 transitions. [2024-11-08 16:14:05,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:05,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 157 [2024-11-08 16:14:05,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:05,113 INFO L225 Difference]: With dead ends: 914 [2024-11-08 16:14:05,114 INFO L226 Difference]: Without dead ends: 545 [2024-11-08 16:14:05,115 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:14:05,116 INFO L432 NwaCegarLoop]: 432 mSDtfsCounter, 933 mSDsluCounter, 846 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 935 SdHoareTripleChecker+Valid, 1278 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:05,118 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [935 Valid, 1278 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:14:05,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-08 16:14:05,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 368. [2024-11-08 16:14:05,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 363 states have (on average 1.3140495867768596) internal successors, (477), 363 states have internal predecessors, (477), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:05,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 483 transitions. [2024-11-08 16:14:05,146 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 483 transitions. Word has length 157 [2024-11-08 16:14:05,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:05,147 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 483 transitions. [2024-11-08 16:14:05,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.0) internal successors, (150), 5 states have internal predecessors, (150), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:05,149 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 483 transitions. [2024-11-08 16:14:05,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-08 16:14:05,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:05,153 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:05,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 16:14:05,154 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:05,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:05,158 INFO L85 PathProgramCache]: Analyzing trace with hash -1315911276, now seen corresponding path program 1 times [2024-11-08 16:14:05,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:05,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [845311924] [2024-11-08 16:14:05,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:05,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:06,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 16:14:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:06,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 16:14:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:06,166 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:14:06,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:06,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [845311924] [2024-11-08 16:14:06,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [845311924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:14:06,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053809175] [2024-11-08 16:14:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:06,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:06,169 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:14:06,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:14:06,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 16:14:06,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:06,796 INFO L255 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 16:14:06,818 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:14:06,874 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 16:14:06,921 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 17 [2024-11-08 16:14:08,076 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 16:14:08,077 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 58 [2024-11-08 16:14:08,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:14:08,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:14:08,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053809175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:08,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:14:08,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-08 16:14:08,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618964169] [2024-11-08 16:14:08,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:08,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 16:14:08,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:08,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 16:14:08,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:14:08,482 INFO L87 Difference]: Start difference. First operand 368 states and 483 transitions. Second operand has 11 states, 11 states have (on average 14.545454545454545) internal successors, (160), 11 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:11,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:11,454 INFO L93 Difference]: Finished difference Result 864 states and 1146 transitions. [2024-11-08 16:14:11,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 16:14:11,457 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 14.545454545454545) internal successors, (160), 11 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 167 [2024-11-08 16:14:11,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:11,460 INFO L225 Difference]: With dead ends: 864 [2024-11-08 16:14:11,460 INFO L226 Difference]: Without dead ends: 541 [2024-11-08 16:14:11,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-08 16:14:11,462 INFO L432 NwaCegarLoop]: 384 mSDtfsCounter, 465 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 467 SdHoareTripleChecker+Valid, 2473 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:11,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [467 Valid, 2473 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-08 16:14:11,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 541 states. [2024-11-08 16:14:11,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 541 to 368. [2024-11-08 16:14:11,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 363 states have (on average 1.3112947658402203) internal successors, (476), 363 states have internal predecessors, (476), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:11,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 482 transitions. [2024-11-08 16:14:11,488 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 482 transitions. Word has length 167 [2024-11-08 16:14:11,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:11,488 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 482 transitions. [2024-11-08 16:14:11,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.545454545454545) internal successors, (160), 11 states have internal predecessors, (160), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:11,489 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 482 transitions. [2024-11-08 16:14:11,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-08 16:14:11,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:11,492 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:11,521 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 16:14:11,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:11,697 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:11,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:11,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1447919628, now seen corresponding path program 1 times [2024-11-08 16:14:11,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:11,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794704787] [2024-11-08 16:14:11,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:11,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:12,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:12,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 16:14:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:12,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 16:14:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:12,638 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:14:12,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:12,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794704787] [2024-11-08 16:14:12,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794704787] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:14:12,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1030185408] [2024-11-08 16:14:12,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:12,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:12,640 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:14:12,642 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:14:12,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 16:14:13,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:13,235 INFO L255 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 16:14:13,250 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:14:13,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:14:13,363 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:14:13,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1030185408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:13,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:14:13,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-08 16:14:13,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326538501] [2024-11-08 16:14:13,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:13,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 16:14:13,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:13,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 16:14:13,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:14:13,367 INFO L87 Difference]: Start difference. First operand 368 states and 482 transitions. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:13,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:13,601 INFO L93 Difference]: Finished difference Result 691 states and 916 transitions. [2024-11-08 16:14:13,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 16:14:13,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 168 [2024-11-08 16:14:13,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:13,605 INFO L225 Difference]: With dead ends: 691 [2024-11-08 16:14:13,605 INFO L226 Difference]: Without dead ends: 368 [2024-11-08 16:14:13,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:14:13,607 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 17 mSDsluCounter, 573 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 924 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:13,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 924 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 16:14:13,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-08 16:14:13,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-11-08 16:14:13,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 363 states have (on average 1.3057851239669422) internal successors, (474), 363 states have internal predecessors, (474), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:13,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 480 transitions. [2024-11-08 16:14:13,628 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 480 transitions. Word has length 168 [2024-11-08 16:14:13,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:13,629 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 480 transitions. [2024-11-08 16:14:13,629 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:13,629 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 480 transitions. [2024-11-08 16:14:13,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-08 16:14:13,632 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:13,632 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:13,662 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 16:14:13,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 16:14:13,838 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:13,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:13,838 INFO L85 PathProgramCache]: Analyzing trace with hash -523162769, now seen corresponding path program 1 times [2024-11-08 16:14:13,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:13,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347076120] [2024-11-08 16:14:13,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:13,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:14,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 16:14:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:14,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 16:14:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:14:14,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:14,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347076120] [2024-11-08 16:14:14,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347076120] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:14,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:14,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 16:14:14,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062050527] [2024-11-08 16:14:14,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:14,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:14:14,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:14,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:14:14,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:14:14,548 INFO L87 Difference]: Start difference. First operand 368 states and 480 transitions. Second operand has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:15,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:15,351 INFO L93 Difference]: Finished difference Result 697 states and 924 transitions. [2024-11-08 16:14:15,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:14:15,352 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 169 [2024-11-08 16:14:15,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:15,355 INFO L225 Difference]: With dead ends: 697 [2024-11-08 16:14:15,355 INFO L226 Difference]: Without dead ends: 377 [2024-11-08 16:14:15,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 16:14:15,356 INFO L432 NwaCegarLoop]: 349 mSDtfsCounter, 11 mSDsluCounter, 1142 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1491 SdHoareTripleChecker+Invalid, 306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:15,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1491 Invalid, 306 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:14:15,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states. [2024-11-08 16:14:15,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 374. [2024-11-08 16:14:15,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 369 states have (on average 1.3008130081300813) internal successors, (480), 369 states have internal predecessors, (480), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:15,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 486 transitions. [2024-11-08 16:14:15,378 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 486 transitions. Word has length 169 [2024-11-08 16:14:15,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:15,379 INFO L471 AbstractCegarLoop]: Abstraction has 374 states and 486 transitions. [2024-11-08 16:14:15,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.142857142857142) internal successors, (162), 6 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:15,379 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 486 transitions. [2024-11-08 16:14:15,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-08 16:14:15,382 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:15,382 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:15,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 16:14:15,383 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:15,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:15,384 INFO L85 PathProgramCache]: Analyzing trace with hash 911313293, now seen corresponding path program 1 times [2024-11-08 16:14:15,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:15,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750558907] [2024-11-08 16:14:15,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:15,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:15,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:16,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:16,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:16,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:14:16,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:16,044 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:14:16,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:16,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750558907] [2024-11-08 16:14:16,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750558907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:16,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:16,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:14:16,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065434335] [2024-11-08 16:14:16,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:16,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:14:16,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:16,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:14:16,048 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:14:16,048 INFO L87 Difference]: Start difference. First operand 374 states and 486 transitions. Second operand has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:17,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:17,069 INFO L93 Difference]: Finished difference Result 703 states and 928 transitions. [2024-11-08 16:14:17,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:14:17,070 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 170 [2024-11-08 16:14:17,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:17,072 INFO L225 Difference]: With dead ends: 703 [2024-11-08 16:14:17,073 INFO L226 Difference]: Without dead ends: 387 [2024-11-08 16:14:17,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:14:17,074 INFO L432 NwaCegarLoop]: 339 mSDtfsCounter, 15 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 475 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 479 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:17,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 2000 Invalid, 479 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 475 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 16:14:17,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2024-11-08 16:14:17,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 382. [2024-11-08 16:14:17,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 377 states have (on average 1.29973474801061) internal successors, (490), 377 states have internal predecessors, (490), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:17,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 496 transitions. [2024-11-08 16:14:17,102 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 496 transitions. Word has length 170 [2024-11-08 16:14:17,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:17,103 INFO L471 AbstractCegarLoop]: Abstraction has 382 states and 496 transitions. [2024-11-08 16:14:17,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.375) internal successors, (163), 7 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 496 transitions. [2024-11-08 16:14:17,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2024-11-08 16:14:17,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:17,107 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:17,107 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 16:14:17,107 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:17,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:17,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1487242127, now seen corresponding path program 1 times [2024-11-08 16:14:17,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:17,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009836158] [2024-11-08 16:14:17,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:17,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:17,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:17,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:17,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:17,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:14:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:17,971 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:14:17,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:17,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009836158] [2024-11-08 16:14:17,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009836158] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:14:17,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976559761] [2024-11-08 16:14:17,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:17,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:17,974 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:14:17,976 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:14:17,979 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 16:14:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:18,742 INFO L255 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 16:14:18,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:14:18,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 16:14:19,923 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:14:19,924 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:14:19,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976559761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:19,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:14:19,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [5] total 13 [2024-11-08 16:14:19,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187435845] [2024-11-08 16:14:19,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:19,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:14:19,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:19,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:14:19,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-11-08 16:14:19,931 INFO L87 Difference]: Start difference. First operand 382 states and 496 transitions. Second operand has 10 states, 10 states have (on average 16.2) internal successors, (162), 10 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:21,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:21,387 INFO L93 Difference]: Finished difference Result 672 states and 879 transitions. [2024-11-08 16:14:21,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:14:21,388 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.2) internal successors, (162), 10 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 170 [2024-11-08 16:14:21,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:21,392 INFO L225 Difference]: With dead ends: 672 [2024-11-08 16:14:21,392 INFO L226 Difference]: Without dead ends: 555 [2024-11-08 16:14:21,393 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=81, Invalid=299, Unknown=0, NotChecked=0, Total=380 [2024-11-08 16:14:21,394 INFO L432 NwaCegarLoop]: 392 mSDtfsCounter, 345 mSDsluCounter, 1911 mSDsCounter, 0 mSdLazyCounter, 496 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 2303 SdHoareTripleChecker+Invalid, 497 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 496 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:21,395 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 2303 Invalid, 497 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 496 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 16:14:21,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2024-11-08 16:14:21,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 419. [2024-11-08 16:14:21,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 414 states have (on average 1.2753623188405796) internal successors, (528), 414 states have internal predecessors, (528), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:21,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 534 transitions. [2024-11-08 16:14:21,420 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 534 transitions. Word has length 170 [2024-11-08 16:14:21,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:21,421 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 534 transitions. [2024-11-08 16:14:21,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.2) internal successors, (162), 10 states have internal predecessors, (162), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:21,422 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 534 transitions. [2024-11-08 16:14:21,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2024-11-08 16:14:21,424 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:21,425 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:21,454 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 16:14:21,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 16:14:21,629 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:21,630 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:21,630 INFO L85 PathProgramCache]: Analyzing trace with hash 129405804, now seen corresponding path program 1 times [2024-11-08 16:14:21,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:21,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847967301] [2024-11-08 16:14:21,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:21,631 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:22,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:22,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:14:22,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:22,379 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:14:22,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:22,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847967301] [2024-11-08 16:14:22,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847967301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:14:22,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [784250213] [2024-11-08 16:14:22,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:22,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:22,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:14:22,383 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:14:22,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 16:14:23,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:23,076 INFO L255 TraceCheckSpWp]: Trace formula consists of 769 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-08 16:14:23,082 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:14:23,264 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:14:23,265 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:14:23,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [784250213] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:23,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:14:23,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-08 16:14:23,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43064088] [2024-11-08 16:14:23,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:23,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:14:23,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:23,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:14:23,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:14:23,269 INFO L87 Difference]: Start difference. First operand 419 states and 534 transitions. Second operand has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:23,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:23,706 INFO L93 Difference]: Finished difference Result 536 states and 688 transitions. [2024-11-08 16:14:23,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:23,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 171 [2024-11-08 16:14:23,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:23,710 INFO L225 Difference]: With dead ends: 536 [2024-11-08 16:14:23,711 INFO L226 Difference]: Without dead ends: 419 [2024-11-08 16:14:23,711 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:14:23,712 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 34 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 1447 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:23,713 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 1447 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:14:23,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-08 16:14:23,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 419. [2024-11-08 16:14:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 414 states have (on average 1.2729468599033817) internal successors, (527), 414 states have internal predecessors, (527), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:23,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 533 transitions. [2024-11-08 16:14:23,737 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 533 transitions. Word has length 171 [2024-11-08 16:14:23,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:23,737 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 533 transitions. [2024-11-08 16:14:23,738 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.166666666666668) internal successors, (163), 6 states have internal predecessors, (163), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:23,738 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 533 transitions. [2024-11-08 16:14:23,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-08 16:14:23,741 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:23,741 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:23,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 16:14:23,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 16:14:23,947 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:23,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:23,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1718816812, now seen corresponding path program 1 times [2024-11-08 16:14:23,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:23,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525920477] [2024-11-08 16:14:23,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:23,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:24,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:24,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:24,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:24,782 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:14:24,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:14:24,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:24,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525920477] [2024-11-08 16:14:24,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525920477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:24,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:24,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 16:14:24,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710971984] [2024-11-08 16:14:24,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:24,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 16:14:24,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:24,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 16:14:24,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:14:24,791 INFO L87 Difference]: Start difference. First operand 419 states and 533 transitions. Second operand has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:25,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:25,646 INFO L93 Difference]: Finished difference Result 546 states and 701 transitions. [2024-11-08 16:14:25,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 16:14:25,647 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 172 [2024-11-08 16:14:25,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:25,650 INFO L225 Difference]: With dead ends: 546 [2024-11-08 16:14:25,650 INFO L226 Difference]: Without dead ends: 429 [2024-11-08 16:14:25,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:14:25,653 INFO L432 NwaCegarLoop]: 351 mSDtfsCounter, 15 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1998 SdHoareTripleChecker+Invalid, 483 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:25,654 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1998 Invalid, 483 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 16:14:25,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2024-11-08 16:14:25,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 422. [2024-11-08 16:14:25,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 417 states have (on average 1.2709832134292567) internal successors, (530), 417 states have internal predecessors, (530), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:25,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 536 transitions. [2024-11-08 16:14:25,678 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 536 transitions. Word has length 172 [2024-11-08 16:14:25,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:25,679 INFO L471 AbstractCegarLoop]: Abstraction has 422 states and 536 transitions. [2024-11-08 16:14:25,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 20.5) internal successors, (164), 7 states have internal predecessors, (164), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:25,680 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 536 transitions. [2024-11-08 16:14:25,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-08 16:14:25,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:25,683 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:25,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 16:14:25,684 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:25,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:25,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1295871269, now seen corresponding path program 1 times [2024-11-08 16:14:25,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:25,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328707059] [2024-11-08 16:14:25,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:25,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:25,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:26,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:26,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:26,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:14:26,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:26,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-08 16:14:26,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:26,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328707059] [2024-11-08 16:14:26,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1328707059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:26,586 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:26,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-08 16:14:26,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751452602] [2024-11-08 16:14:26,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:26,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 16:14:26,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:26,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 16:14:26,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:14:26,588 INFO L87 Difference]: Start difference. First operand 422 states and 536 transitions. Second operand has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 8 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:27,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:27,801 INFO L93 Difference]: Finished difference Result 559 states and 717 transitions. [2024-11-08 16:14:27,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:14:27,802 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 8 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 173 [2024-11-08 16:14:27,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:27,805 INFO L225 Difference]: With dead ends: 559 [2024-11-08 16:14:27,805 INFO L226 Difference]: Without dead ends: 439 [2024-11-08 16:14:27,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:14:27,808 INFO L432 NwaCegarLoop]: 341 mSDtfsCounter, 26 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 543 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 543 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:27,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 2009 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 543 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 16:14:27,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2024-11-08 16:14:27,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 426. [2024-11-08 16:14:27,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 421 states have (on average 1.2707838479809976) internal successors, (535), 421 states have internal predecessors, (535), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 16:14:27,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 541 transitions. [2024-11-08 16:14:27,835 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 541 transitions. Word has length 173 [2024-11-08 16:14:27,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:27,836 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 541 transitions. [2024-11-08 16:14:27,836 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.333333333333332) internal successors, (165), 8 states have internal predecessors, (165), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:27,837 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 541 transitions. [2024-11-08 16:14:27,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-08 16:14:27,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:27,840 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:27,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-08 16:14:27,840 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:27,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:27,841 INFO L85 PathProgramCache]: Analyzing trace with hash -459276791, now seen corresponding path program 1 times [2024-11-08 16:14:27,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:27,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053175864] [2024-11-08 16:14:27,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:27,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:28,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:28,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:28,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 16:14:28,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:28,452 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:14:28,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:28,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053175864] [2024-11-08 16:14:28,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053175864] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:14:28,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715577442] [2024-11-08 16:14:28,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:28,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:28,454 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:14:28,456 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:14:28,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 16:14:29,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:29,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-08 16:14:29,238 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:14:29,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 16:14:29,339 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 16:14:29,339 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:14:29,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715577442] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:29,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:14:29,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 8 [2024-11-08 16:14:29,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537333710] [2024-11-08 16:14:29,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:29,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 16:14:29,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:29,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 16:14:29,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 16:14:29,342 INFO L87 Difference]: Start difference. First operand 426 states and 541 transitions. Second operand has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 16:14:29,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:29,521 INFO L93 Difference]: Finished difference Result 807 states and 1032 transitions. [2024-11-08 16:14:29,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 16:14:29,523 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 173 [2024-11-08 16:14:29,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:29,526 INFO L225 Difference]: With dead ends: 807 [2024-11-08 16:14:29,526 INFO L226 Difference]: Without dead ends: 483 [2024-11-08 16:14:29,527 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 16:14:29,528 INFO L432 NwaCegarLoop]: 352 mSDtfsCounter, 189 mSDsluCounter, 1373 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 1725 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:29,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 1725 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 16:14:29,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2024-11-08 16:14:29,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 429. [2024-11-08 16:14:29,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 429 states, 423 states have (on average 1.2718676122931443) internal successors, (538), 424 states have internal predecessors, (538), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 16:14:29,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 429 states to 429 states and 545 transitions. [2024-11-08 16:14:29,557 INFO L78 Accepts]: Start accepts. Automaton has 429 states and 545 transitions. Word has length 173 [2024-11-08 16:14:29,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:29,558 INFO L471 AbstractCegarLoop]: Abstraction has 429 states and 545 transitions. [2024-11-08 16:14:29,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-08 16:14:29,559 INFO L276 IsEmpty]: Start isEmpty. Operand 429 states and 545 transitions. [2024-11-08 16:14:29,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-08 16:14:29,561 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:29,562 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:29,591 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 16:14:29,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-08 16:14:29,766 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:29,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:29,767 INFO L85 PathProgramCache]: Analyzing trace with hash -912570453, now seen corresponding path program 1 times [2024-11-08 16:14:29,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:29,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36136339] [2024-11-08 16:14:29,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:29,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:30,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:30,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:30,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:30,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 16:14:30,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:30,746 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:14:30,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:30,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36136339] [2024-11-08 16:14:30,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36136339] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:14:30,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [402415373] [2024-11-08 16:14:30,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:30,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:30,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:14:30,757 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:14:30,759 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 16:14:31,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:31,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 798 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-08 16:14:31,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:14:31,877 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 16:14:31,878 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:14:32,010 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-08 16:14:32,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [402415373] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:14:32,011 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:14:32,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2024-11-08 16:14:32,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3496576] [2024-11-08 16:14:32,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:14:32,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 16:14:32,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:32,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 16:14:32,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-08 16:14:32,017 INFO L87 Difference]: Start difference. First operand 429 states and 545 transitions. Second operand has 11 states, 11 states have (on average 16.727272727272727) internal successors, (184), 10 states have internal predecessors, (184), 2 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:14:32,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:32,686 INFO L93 Difference]: Finished difference Result 767 states and 979 transitions. [2024-11-08 16:14:32,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-08 16:14:32,687 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 16.727272727272727) internal successors, (184), 10 states have internal predecessors, (184), 2 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 175 [2024-11-08 16:14:32,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:32,690 INFO L225 Difference]: With dead ends: 767 [2024-11-08 16:14:32,690 INFO L226 Difference]: Without dead ends: 440 [2024-11-08 16:14:32,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 364 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=100, Invalid=242, Unknown=0, NotChecked=0, Total=342 [2024-11-08 16:14:32,697 INFO L432 NwaCegarLoop]: 357 mSDtfsCounter, 8 mSDsluCounter, 2074 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 2431 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:32,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 2431 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:14:32,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-08 16:14:32,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 438. [2024-11-08 16:14:32,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 431 states have (on average 1.2807424593967518) internal successors, (552), 432 states have internal predecessors, (552), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 16:14:32,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 559 transitions. [2024-11-08 16:14:32,751 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 559 transitions. Word has length 175 [2024-11-08 16:14:32,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:32,752 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 559 transitions. [2024-11-08 16:14:32,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 16.727272727272727) internal successors, (184), 10 states have internal predecessors, (184), 2 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:14:32,752 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 559 transitions. [2024-11-08 16:14:32,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-08 16:14:32,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:32,756 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:32,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 16:14:32,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-08 16:14:32,961 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:32,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:32,961 INFO L85 PathProgramCache]: Analyzing trace with hash 121364745, now seen corresponding path program 2 times [2024-11-08 16:14:32,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:32,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871351135] [2024-11-08 16:14:32,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:32,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:46,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:46,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 16:14:46,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:46,781 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 16:14:46,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:46,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871351135] [2024-11-08 16:14:46,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871351135] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:14:46,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443743535] [2024-11-08 16:14:46,782 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:14:46,783 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:46,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:14:46,785 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:14:46,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 16:14:47,942 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:14:47,942 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:14:47,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-08 16:14:47,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:14:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 16:14:48,528 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:14:48,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443743535] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:48,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:14:48,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [21] total 26 [2024-11-08 16:14:48,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683261982] [2024-11-08 16:14:48,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:48,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:14:48,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:48,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:14:48,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2024-11-08 16:14:48,535 INFO L87 Difference]: Start difference. First operand 438 states and 559 transitions. Second operand has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:49,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:49,119 INFO L93 Difference]: Finished difference Result 567 states and 728 transitions. [2024-11-08 16:14:49,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:14:49,121 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 179 [2024-11-08 16:14:49,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:49,124 INFO L225 Difference]: With dead ends: 567 [2024-11-08 16:14:49,124 INFO L226 Difference]: Without dead ends: 443 [2024-11-08 16:14:49,125 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=588, Unknown=0, NotChecked=0, Total=650 [2024-11-08 16:14:49,126 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 12 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:49,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1721 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:14:49,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2024-11-08 16:14:49,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 438. [2024-11-08 16:14:49,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 438 states, 431 states have (on average 1.2807424593967518) internal successors, (552), 432 states have internal predecessors, (552), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 16:14:49,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 438 states to 438 states and 559 transitions. [2024-11-08 16:14:49,158 INFO L78 Accepts]: Start accepts. Automaton has 438 states and 559 transitions. Word has length 179 [2024-11-08 16:14:49,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:49,158 INFO L471 AbstractCegarLoop]: Abstraction has 438 states and 559 transitions. [2024-11-08 16:14:49,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.714285714285715) internal successors, (166), 7 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:49,159 INFO L276 IsEmpty]: Start isEmpty. Operand 438 states and 559 transitions. [2024-11-08 16:14:49,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-08 16:14:49,162 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:49,162 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:49,190 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 16:14:49,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:49,363 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:49,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:49,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1398445920, now seen corresponding path program 1 times [2024-11-08 16:14:49,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:49,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377930402] [2024-11-08 16:14:49,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:49,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:49,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:50,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:50,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:50,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 16:14:50,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:50,105 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 16:14:50,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:50,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377930402] [2024-11-08 16:14:50,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377930402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:50,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:50,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 16:14:50,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [201626728] [2024-11-08 16:14:50,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:50,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 16:14:50,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:50,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 16:14:50,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:14:50,110 INFO L87 Difference]: Start difference. First operand 438 states and 559 transitions. Second operand has 10 states, 10 states have (on average 16.7) internal successors, (167), 9 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:51,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:51,026 INFO L93 Difference]: Finished difference Result 574 states and 736 transitions. [2024-11-08 16:14:51,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-08 16:14:51,027 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 9 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 180 [2024-11-08 16:14:51,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:51,030 INFO L225 Difference]: With dead ends: 574 [2024-11-08 16:14:51,030 INFO L226 Difference]: Without dead ends: 450 [2024-11-08 16:14:51,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-08 16:14:51,033 INFO L432 NwaCegarLoop]: 338 mSDtfsCounter, 23 mSDsluCounter, 2278 mSDsCounter, 0 mSdLazyCounter, 566 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 2616 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:51,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 2616 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 566 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 16:14:51,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-08 16:14:51,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 445. [2024-11-08 16:14:51,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 438 states have (on average 1.2808219178082192) internal successors, (561), 439 states have internal predecessors, (561), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 16:14:51,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 568 transitions. [2024-11-08 16:14:51,067 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 568 transitions. Word has length 180 [2024-11-08 16:14:51,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:51,068 INFO L471 AbstractCegarLoop]: Abstraction has 445 states and 568 transitions. [2024-11-08 16:14:51,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 16.7) internal successors, (167), 9 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:51,068 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 568 transitions. [2024-11-08 16:14:51,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 181 [2024-11-08 16:14:51,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:51,073 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:51,074 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-08 16:14:51,074 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:51,074 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:51,075 INFO L85 PathProgramCache]: Analyzing trace with hash -1471536388, now seen corresponding path program 1 times [2024-11-08 16:14:51,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:51,075 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291183776] [2024-11-08 16:14:51,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:51,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:51,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:51,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:52,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 16:14:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:14:52,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:52,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291183776] [2024-11-08 16:14:52,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291183776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:14:52,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893647582] [2024-11-08 16:14:52,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:52,220 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:52,220 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:14:52,223 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:14:52,225 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 16:14:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:53,081 INFO L255 TraceCheckSpWp]: Trace formula consists of 859 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-08 16:14:53,086 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:14:53,291 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 16:14:53,292 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:14:53,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893647582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:53,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:14:53,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-08 16:14:53,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206692308] [2024-11-08 16:14:53,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:53,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:14:53,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:53,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:14:53,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:14:53,297 INFO L87 Difference]: Start difference. First operand 445 states and 568 transitions. Second operand has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:53,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:53,725 INFO L93 Difference]: Finished difference Result 581 states and 746 transitions. [2024-11-08 16:14:53,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:14:53,726 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 180 [2024-11-08 16:14:53,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:53,729 INFO L225 Difference]: With dead ends: 581 [2024-11-08 16:14:53,729 INFO L226 Difference]: Without dead ends: 450 [2024-11-08 16:14:53,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:14:53,732 INFO L432 NwaCegarLoop]: 336 mSDtfsCounter, 17 mSDsluCounter, 1392 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 1728 SdHoareTripleChecker+Invalid, 377 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:53,733 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 1728 Invalid, 377 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 16:14:53,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2024-11-08 16:14:53,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 447. [2024-11-08 16:14:53,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 447 states, 440 states have (on average 1.2795454545454545) internal successors, (563), 441 states have internal predecessors, (563), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 16:14:53,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 447 states to 447 states and 570 transitions. [2024-11-08 16:14:53,761 INFO L78 Accepts]: Start accepts. Automaton has 447 states and 570 transitions. Word has length 180 [2024-11-08 16:14:53,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:53,762 INFO L471 AbstractCegarLoop]: Abstraction has 447 states and 570 transitions. [2024-11-08 16:14:53,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 23.857142857142858) internal successors, (167), 7 states have internal predecessors, (167), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:53,763 INFO L276 IsEmpty]: Start isEmpty. Operand 447 states and 570 transitions. [2024-11-08 16:14:53,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-08 16:14:53,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:53,767 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:53,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 16:14:53,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:53,972 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:53,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:53,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1996838809, now seen corresponding path program 1 times [2024-11-08 16:14:53,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:53,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942443679] [2024-11-08 16:14:53,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:53,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:54,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:54,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:54,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 16:14:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:54,959 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-08 16:14:54,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:54,960 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942443679] [2024-11-08 16:14:54,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942443679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:14:54,960 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 16:14:54,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 16:14:54,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35903401] [2024-11-08 16:14:54,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:14:54,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 16:14:54,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:54,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 16:14:54,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-08 16:14:54,963 INFO L87 Difference]: Start difference. First operand 447 states and 570 transitions. Second operand has 12 states, 12 states have (on average 14.0) internal successors, (168), 11 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:56,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:56,241 INFO L93 Difference]: Finished difference Result 595 states and 762 transitions. [2024-11-08 16:14:56,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-08 16:14:56,242 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 14.0) internal successors, (168), 11 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 181 [2024-11-08 16:14:56,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:56,245 INFO L225 Difference]: With dead ends: 595 [2024-11-08 16:14:56,245 INFO L226 Difference]: Without dead ends: 462 [2024-11-08 16:14:56,251 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2024-11-08 16:14:56,251 INFO L432 NwaCegarLoop]: 348 mSDtfsCounter, 30 mSDsluCounter, 2818 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 3166 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:56,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 3166 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-08 16:14:56,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-08 16:14:56,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 450. [2024-11-08 16:14:56,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 450 states, 443 states have (on average 1.2776523702031604) internal successors, (566), 444 states have internal predecessors, (566), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 16:14:56,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 573 transitions. [2024-11-08 16:14:56,283 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 573 transitions. Word has length 181 [2024-11-08 16:14:56,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:56,283 INFO L471 AbstractCegarLoop]: Abstraction has 450 states and 573 transitions. [2024-11-08 16:14:56,284 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.0) internal successors, (168), 11 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:14:56,284 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 573 transitions. [2024-11-08 16:14:56,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2024-11-08 16:14:56,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:56,288 INFO L215 NwaCegarLoop]: trace histogram [6, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:56,288 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-08 16:14:56,288 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:56,289 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:56,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1073266819, now seen corresponding path program 1 times [2024-11-08 16:14:56,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:56,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172470582] [2024-11-08 16:14:56,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:56,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:14:56,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:56,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:14:56,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:57,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-08 16:14:57,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:57,159 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:14:57,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:14:57,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172470582] [2024-11-08 16:14:57,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172470582] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:14:57,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379334421] [2024-11-08 16:14:57,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:57,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:57,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:14:57,161 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:14:57,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 16:14:58,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:14:58,022 INFO L255 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-08 16:14:58,027 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:14:58,195 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 20 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 16:14:58,195 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 16:14:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 2 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 16:14:58,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379334421] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 16:14:58,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 16:14:58,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 21 [2024-11-08 16:14:58,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454473779] [2024-11-08 16:14:58,559 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 16:14:58,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-08 16:14:58,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:14:58,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-08 16:14:58,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=310, Unknown=0, NotChecked=0, Total=420 [2024-11-08 16:14:58,561 INFO L87 Difference]: Start difference. First operand 450 states and 573 transitions. Second operand has 21 states, 21 states have (on average 9.380952380952381) internal successors, (197), 20 states have internal predecessors, (197), 2 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:14:59,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:14:59,699 INFO L93 Difference]: Finished difference Result 809 states and 1034 transitions. [2024-11-08 16:14:59,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-08 16:14:59,700 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 9.380952380952381) internal successors, (197), 20 states have internal predecessors, (197), 2 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 181 [2024-11-08 16:14:59,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:14:59,702 INFO L225 Difference]: With dead ends: 809 [2024-11-08 16:14:59,702 INFO L226 Difference]: Without dead ends: 463 [2024-11-08 16:14:59,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 383 GetRequests, 353 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=287, Invalid=705, Unknown=0, NotChecked=0, Total=992 [2024-11-08 16:14:59,704 INFO L432 NwaCegarLoop]: 346 mSDtfsCounter, 34 mSDsluCounter, 4039 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 4385 SdHoareTripleChecker+Invalid, 466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 16:14:59,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 4385 Invalid, 466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 16:14:59,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2024-11-08 16:14:59,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 459. [2024-11-08 16:14:59,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 452 states have (on average 1.2721238938053097) internal successors, (575), 453 states have internal predecessors, (575), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 16:14:59,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 582 transitions. [2024-11-08 16:14:59,733 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 582 transitions. Word has length 181 [2024-11-08 16:14:59,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:14:59,734 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 582 transitions. [2024-11-08 16:14:59,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 9.380952380952381) internal successors, (197), 20 states have internal predecessors, (197), 2 states have call successors, (5), 3 states have call predecessors, (5), 5 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 16:14:59,734 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 582 transitions. [2024-11-08 16:14:59,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-08 16:14:59,736 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:14:59,737 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:14:59,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 16:14:59,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:14:59,938 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:14:59,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:14:59,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1436718513, now seen corresponding path program 2 times [2024-11-08 16:14:59,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:14:59,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638380858] [2024-11-08 16:14:59,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:14:59,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:15:00,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:00,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:15:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:01,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 16:15:01,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:01,416 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 16:15:01,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:15:01,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638380858] [2024-11-08 16:15:01,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638380858] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:15:01,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935717344] [2024-11-08 16:15:01,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 16:15:01,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:15:01,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:15:01,420 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:15:01,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 16:15:02,498 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-08 16:15:02,498 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 16:15:02,501 INFO L255 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 16:15:02,505 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:15:11,294 WARN L286 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 21 DAG size of output: 18 (called from [L 728] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-11-08 16:15:22,748 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-08 16:15:22,748 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:15:22,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935717344] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:15:22,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:15:22,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15] total 24 [2024-11-08 16:15:22,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907568047] [2024-11-08 16:15:22,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:15:22,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 16:15:22,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:15:22,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 16:15:22,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2024-11-08 16:15:22,752 INFO L87 Difference]: Start difference. First operand 459 states and 582 transitions. Second operand has 11 states, 11 states have (on average 15.272727272727273) internal successors, (168), 11 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:15:24,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:15:24,346 INFO L93 Difference]: Finished difference Result 600 states and 763 transitions. [2024-11-08 16:15:24,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:15:24,347 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.272727272727273) internal successors, (168), 11 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 190 [2024-11-08 16:15:24,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:15:24,349 INFO L225 Difference]: With dead ends: 600 [2024-11-08 16:15:24,350 INFO L226 Difference]: Without dead ends: 464 [2024-11-08 16:15:24,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2024-11-08 16:15:24,351 INFO L432 NwaCegarLoop]: 344 mSDtfsCounter, 11 mSDsluCounter, 2490 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2834 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:15:24,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2834 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 16:15:24,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 464 states. [2024-11-08 16:15:24,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 464 to 462. [2024-11-08 16:15:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 455 states have (on average 1.2703296703296703) internal successors, (578), 456 states have internal predecessors, (578), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 16:15:24,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 585 transitions. [2024-11-08 16:15:24,382 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 585 transitions. Word has length 190 [2024-11-08 16:15:24,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:15:24,383 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 585 transitions. [2024-11-08 16:15:24,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.272727272727273) internal successors, (168), 11 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:15:24,383 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 585 transitions. [2024-11-08 16:15:24,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-08 16:15:24,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:15:24,386 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:15:24,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-08 16:15:24,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:15:24,587 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:15:24,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:15:24,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1305420344, now seen corresponding path program 1 times [2024-11-08 16:15:24,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:15:24,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028426310] [2024-11-08 16:15:24,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:15:24,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:15:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:25,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:15:25,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:26,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 16:15:26,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:26,284 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 16:15:26,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:15:26,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028426310] [2024-11-08 16:15:26,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028426310] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:15:26,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245877846] [2024-11-08 16:15:26,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:15:26,285 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:15:26,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:15:26,287 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:15:26,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 16:15:27,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:27,642 INFO L255 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 16:15:27,647 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:15:28,084 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-08 16:15:28,084 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 16:15:28,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245877846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 16:15:28,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 16:15:28,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 20 [2024-11-08 16:15:28,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061781983] [2024-11-08 16:15:28,085 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 16:15:28,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 16:15:28,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 16:15:28,087 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 16:15:28,087 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-11-08 16:15:28,088 INFO L87 Difference]: Start difference. First operand 462 states and 585 transitions. Second operand has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:15:28,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 16:15:28,666 INFO L93 Difference]: Finished difference Result 606 states and 771 transitions. [2024-11-08 16:15:28,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 16:15:28,667 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 190 [2024-11-08 16:15:28,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 16:15:28,670 INFO L225 Difference]: With dead ends: 606 [2024-11-08 16:15:28,670 INFO L226 Difference]: Without dead ends: 467 [2024-11-08 16:15:28,671 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=46, Invalid=334, Unknown=0, NotChecked=0, Total=380 [2024-11-08 16:15:28,672 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 10 mSDsluCounter, 1376 mSDsCounter, 0 mSdLazyCounter, 424 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 1721 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 424 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 16:15:28,672 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 1721 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 424 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 16:15:28,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2024-11-08 16:15:28,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 462. [2024-11-08 16:15:28,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 462 states, 455 states have (on average 1.2703296703296703) internal successors, (578), 456 states have internal predecessors, (578), 3 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 16:15:28,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 585 transitions. [2024-11-08 16:15:28,702 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 585 transitions. Word has length 190 [2024-11-08 16:15:28,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 16:15:28,703 INFO L471 AbstractCegarLoop]: Abstraction has 462 states and 585 transitions. [2024-11-08 16:15:28,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.0) internal successors, (168), 7 states have internal predecessors, (168), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 16:15:28,704 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 585 transitions. [2024-11-08 16:15:28,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-08 16:15:28,706 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 16:15:28,706 INFO L215 NwaCegarLoop]: trace histogram [15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 16:15:28,747 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 16:15:28,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:15:28,907 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 16:15:28,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 16:15:28,908 INFO L85 PathProgramCache]: Analyzing trace with hash 173994185, now seen corresponding path program 1 times [2024-11-08 16:15:28,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 16:15:28,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734609877] [2024-11-08 16:15:28,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:15:28,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 16:15:29,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:30,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 16:15:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:30,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-08 16:15:30,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:30,611 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 2 proven. 123 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 16:15:30,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 16:15:30,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734609877] [2024-11-08 16:15:30,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734609877] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 16:15:30,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333818988] [2024-11-08 16:15:30,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 16:15:30,612 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 16:15:30,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 16:15:30,615 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 16:15:30,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7ed2db74-5376-4776-ad28-b021984321d6/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 16:15:31,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 16:15:31,971 INFO L255 TraceCheckSpWp]: Trace formula consists of 996 conjuncts, 183 conjuncts are in the unsatisfiable core [2024-11-08 16:15:31,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 16:15:32,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-08 16:15:32,515 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-08 16:15:32,556 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-11-08 16:15:32,557 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2024-11-08 16:15:32,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-08 16:15:32,756 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2024-11-08 16:15:32,764 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-11-08 16:15:33,440 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-08 16:15:33,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 58 treesize of output 51 [2024-11-08 16:15:33,457 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2024-11-08 16:15:37,594 INFO L224 Elim1Store]: Index analysis took 147 ms