./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-2.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_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/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_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/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_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/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 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:49:33,502 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:49:33,601 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:49:33,608 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:49:33,611 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:49:33,655 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:49:33,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:49:33,656 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:49:33,657 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:49:33,657 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:49:33,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:49:33,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:49:33,659 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:49:33,660 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:49:33,660 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:49:33,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:49:33,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:49:33,662 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:49:33,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:49:33,663 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:49:33,663 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:49:33,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:49:33,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:49:33,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:49:33,665 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:49:33,665 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:49:33,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:49:33,666 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:49:33,667 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:49:33,667 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:49:33,668 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:49:33,668 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:49:33,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:49:33,669 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:49:33,669 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:49:33,670 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:49:33,670 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:49:33,671 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:49:33,671 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:49:33,671 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:49:33,672 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:49:33,672 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:49:33,672 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_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c763f0e5b490114d32e3c1ec14f736caee058b985a7ee61f4d14ad6758e2996 [2024-11-08 18:49:34,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:49:34,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:49:34,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:49:34,099 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:49:34,100 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:49:34,102 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-2.i Unable to find full path for "g++" [2024-11-08 18:49:36,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:49:36,941 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:49:36,942 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-2.i [2024-11-08 18:49:36,973 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/data/b2859739d/8b0b70d10d444cf296574b1ab1191efb/FLAG1ec56814d [2024-11-08 18:49:37,129 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/data/b2859739d/8b0b70d10d444cf296574b1ab1191efb [2024-11-08 18:49:37,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:49:37,134 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:49:37,136 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:49:37,136 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:49:37,144 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:49:37,145 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:49:37" (1/1) ... [2024-11-08 18:49:37,147 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48e65aa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:37, skipping insertion in model container [2024-11-08 18:49:37,147 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:49:37" (1/1) ... [2024-11-08 18:49:37,226 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:49:37,920 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_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-2.i[33519,33532] [2024-11-08 18:49:38,197 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:49:38,215 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:49:38,281 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_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/sv-benchmarks/c/uthash-2.0.2/uthash_OAT_nondet_test4-2.i[33519,33532] [2024-11-08 18:49:38,411 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:49:38,463 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:49:38,464 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38 WrapperNode [2024-11-08 18:49:38,464 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:49:38,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:49:38,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:49:38,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:49:38,476 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:38,518 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:38,614 INFO L138 Inliner]: procedures = 176, calls = 376, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1676 [2024-11-08 18:49:38,615 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:49:38,616 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:49:38,616 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:49:38,616 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:49:38,643 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:38,644 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:38,662 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:38,854 INFO L175 MemorySlicer]: Split 357 memory accesses to 2 slices as follows [2, 355]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 90 writes are split as follows [0, 90]. [2024-11-08 18:49:38,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:38,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:38,981 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:39,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:39,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:39,041 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:39,068 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:49:39,072 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:49:39,074 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:49:39,074 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:49:39,075 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (1/1) ... [2024-11-08 18:49:39,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:49:39,105 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:49:39,134 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:49:39,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:49:39,188 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 18:49:39,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 18:49:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 18:49:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 18:49:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 18:49:39,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 18:49:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 18:49:39,191 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 18:49:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 18:49:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:49:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 18:49:39,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 18:49:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 18:49:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 18:49:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 18:49:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:49:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 18:49:39,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:49:39,192 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:49:39,569 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:49:39,572 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:49:41,943 INFO L? ?]: Removed 413 outVars from TransFormulas that were not future-live. [2024-11-08 18:49:41,943 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:49:41,969 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:49:41,969 INFO L316 CfgBuilder]: Removed 62 assume(true) statements. [2024-11-08 18:49:41,969 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:49:41 BoogieIcfgContainer [2024-11-08 18:49:41,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:49:41,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:49:41,972 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:49:41,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:49:41,976 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:49:37" (1/3) ... [2024-11-08 18:49:41,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0a72c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:49:41, skipping insertion in model container [2024-11-08 18:49:41,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:49:38" (2/3) ... [2024-11-08 18:49:41,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d0a72c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:49:41, skipping insertion in model container [2024-11-08 18:49:41,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:49:41" (3/3) ... [2024-11-08 18:49:41,980 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_OAT_nondet_test4-2.i [2024-11-08 18:49:42,002 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:49:42,002 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:49:42,104 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:49:42,113 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;@746e1d3b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:49:42,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:49:42,120 INFO L276 IsEmpty]: Start isEmpty. Operand has 444 states, 435 states have (on average 1.606896551724138) internal successors, (699), 436 states have internal predecessors, (699), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-08 18:49:42,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-08 18:49:42,129 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:42,129 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:49:42,130 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:42,138 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:42,139 INFO L85 PathProgramCache]: Analyzing trace with hash -814695328, now seen corresponding path program 1 times [2024-11-08 18:49:42,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:42,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110117759] [2024-11-08 18:49:42,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:42,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:42,542 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 18:49:42,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:42,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110117759] [2024-11-08 18:49:42,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110117759] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:42,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:42,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:49:42,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135518389] [2024-11-08 18:49:42,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:42,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:49:42,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:42,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:49:42,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:49:42,584 INFO L87 Difference]: Start difference. First operand has 444 states, 435 states have (on average 1.606896551724138) internal successors, (699), 436 states have internal predecessors, (699), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 18:49:43,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:49:43,259 INFO L93 Difference]: Finished difference Result 1212 states and 1946 transitions. [2024-11-08 18:49:43,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:49:43,262 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 18:49:43,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:49:43,292 INFO L225 Difference]: With dead ends: 1212 [2024-11-08 18:49:43,292 INFO L226 Difference]: Without dead ends: 729 [2024-11-08 18:49:43,298 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 18:49:43,305 INFO L432 NwaCegarLoop]: 638 mSDtfsCounter, 475 mSDsluCounter, 1194 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 478 SdHoareTripleChecker+Valid, 1832 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:49:43,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [478 Valid, 1832 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:49:43,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-08 18:49:43,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 729. [2024-11-08 18:49:43,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 718 states have (on average 1.4596100278551531) internal successors, (1048), 718 states have internal predecessors, (1048), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:49:43,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1066 transitions. [2024-11-08 18:49:43,471 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1066 transitions. Word has length 11 [2024-11-08 18:49:43,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:49:43,472 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1066 transitions. [2024-11-08 18:49:43,473 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 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 18:49:43,473 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1066 transitions. [2024-11-08 18:49:43,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-08 18:49:43,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:43,486 INFO L215 NwaCegarLoop]: trace histogram [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 18:49:43,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:49:43,490 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:43,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:43,491 INFO L85 PathProgramCache]: Analyzing trace with hash 641817703, now seen corresponding path program 1 times [2024-11-08 18:49:43,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:43,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558393405] [2024-11-08 18:49:43,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:43,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:43,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:44,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 18:49:44,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:44,648 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 18:49:44,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:44,663 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:49:44,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:44,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558393405] [2024-11-08 18:49:44,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558393405] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:44,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:44,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:49:44,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941206274] [2024-11-08 18:49:44,670 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:44,675 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:49:44,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:44,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:49:44,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:49:44,678 INFO L87 Difference]: Start difference. First operand 729 states and 1066 transitions. Second operand has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 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 18:49:45,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:49:45,439 INFO L93 Difference]: Finished difference Result 1405 states and 2058 transitions. [2024-11-08 18:49:45,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:49:45,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 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 173 [2024-11-08 18:49:45,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:49:45,446 INFO L225 Difference]: With dead ends: 1405 [2024-11-08 18:49:45,446 INFO L226 Difference]: Without dead ends: 738 [2024-11-08 18:49:45,449 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:49:45,454 INFO L432 NwaCegarLoop]: 555 mSDtfsCounter, 110 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:49:45,455 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2028 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:49:45,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 738 states. [2024-11-08 18:49:45,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 738 to 729. [2024-11-08 18:49:45,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 718 states have (on average 1.4401114206128134) internal successors, (1034), 718 states have internal predecessors, (1034), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:49:45,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1052 transitions. [2024-11-08 18:49:45,508 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1052 transitions. Word has length 173 [2024-11-08 18:49:45,508 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:49:45,509 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1052 transitions. [2024-11-08 18:49:45,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.2) internal successors, (166), 4 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 18:49:45,510 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1052 transitions. [2024-11-08 18:49:45,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-08 18:49:45,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:45,519 INFO L215 NwaCegarLoop]: trace histogram [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 18:49:45,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:49:45,521 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:45,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:45,522 INFO L85 PathProgramCache]: Analyzing trace with hash 1370848755, now seen corresponding path program 1 times [2024-11-08 18:49:45,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:45,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [130286968] [2024-11-08 18:49:45,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:45,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:45,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:46,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 18:49:46,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:46,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 18:49:46,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:46,130 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:49:46,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:46,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [130286968] [2024-11-08 18:49:46,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [130286968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:46,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:46,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:49:46,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654675705] [2024-11-08 18:49:46,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:46,136 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:49:46,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:46,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:49:46,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:49:46,137 INFO L87 Difference]: Start difference. First operand 729 states and 1052 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 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 18:49:46,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:49:46,754 INFO L93 Difference]: Finished difference Result 1395 states and 2025 transitions. [2024-11-08 18:49:46,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:49:46,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 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 173 [2024-11-08 18:49:46,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:49:46,759 INFO L225 Difference]: With dead ends: 1395 [2024-11-08 18:49:46,759 INFO L226 Difference]: Without dead ends: 744 [2024-11-08 18:49:46,761 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 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 18:49:46,762 INFO L432 NwaCegarLoop]: 572 mSDtfsCounter, 4 mSDsluCounter, 1025 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1597 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:49:46,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1597 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:49:46,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states. [2024-11-08 18:49:46,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 741. [2024-11-08 18:49:46,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 741 states, 730 states have (on average 1.4328767123287671) internal successors, (1046), 730 states have internal predecessors, (1046), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:49:46,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 741 states to 741 states and 1064 transitions. [2024-11-08 18:49:46,792 INFO L78 Accepts]: Start accepts. Automaton has 741 states and 1064 transitions. Word has length 173 [2024-11-08 18:49:46,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:49:46,793 INFO L471 AbstractCegarLoop]: Abstraction has 741 states and 1064 transitions. [2024-11-08 18:49:46,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 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 18:49:46,793 INFO L276 IsEmpty]: Start isEmpty. Operand 741 states and 1064 transitions. [2024-11-08 18:49:46,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2024-11-08 18:49:46,796 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:46,797 INFO L215 NwaCegarLoop]: trace histogram [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 18:49:46,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:49:46,797 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:46,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:46,798 INFO L85 PathProgramCache]: Analyzing trace with hash 944294257, now seen corresponding path program 1 times [2024-11-08 18:49:46,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:46,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879073234] [2024-11-08 18:49:46,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:46,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:47,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-08 18:49:47,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:47,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-11-08 18:49:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:47,201 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 18:49:47,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:47,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879073234] [2024-11-08 18:49:47,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879073234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:47,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:47,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:49:47,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265232534] [2024-11-08 18:49:47,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:47,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:49:47,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:47,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:49:47,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:49:47,207 INFO L87 Difference]: Start difference. First operand 741 states and 1064 transitions. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 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 18:49:47,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:49:47,830 INFO L93 Difference]: Finished difference Result 1333 states and 1925 transitions. [2024-11-08 18:49:47,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:49:47,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 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 173 [2024-11-08 18:49:47,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:49:47,836 INFO L225 Difference]: With dead ends: 1333 [2024-11-08 18:49:47,836 INFO L226 Difference]: Without dead ends: 742 [2024-11-08 18:49:47,838 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 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 18:49:47,839 INFO L432 NwaCegarLoop]: 577 mSDtfsCounter, 139 mSDsluCounter, 1047 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:49:47,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1624 Invalid, 110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:49:47,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 742 states. [2024-11-08 18:49:47,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 742 to 739. [2024-11-08 18:49:47,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 728 states have (on average 1.4326923076923077) internal successors, (1043), 728 states have internal predecessors, (1043), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:49:47,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1061 transitions. [2024-11-08 18:49:47,871 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1061 transitions. Word has length 173 [2024-11-08 18:49:47,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:49:47,872 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 1061 transitions. [2024-11-08 18:49:47,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 3 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 18:49:47,873 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1061 transitions. [2024-11-08 18:49:47,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-08 18:49:47,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:47,877 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:47,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:49:47,877 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:47,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:47,878 INFO L85 PathProgramCache]: Analyzing trace with hash -327699746, now seen corresponding path program 1 times [2024-11-08 18:49:47,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:47,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786888661] [2024-11-08 18:49:47,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:47,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:48,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:49:48,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:48,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:49:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:48,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 18:49:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:48,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 18:49:48,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:48,494 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:49:48,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:48,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786888661] [2024-11-08 18:49:48,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786888661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:48,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:48,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:49:48,497 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828573901] [2024-11-08 18:49:48,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:48,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:49:48,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:48,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:49:48,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:49:48,500 INFO L87 Difference]: Start difference. First operand 739 states and 1061 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:49:49,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:49:49,139 INFO L93 Difference]: Finished difference Result 1229 states and 1771 transitions. [2024-11-08 18:49:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:49:49,140 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 188 [2024-11-08 18:49:49,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:49:49,147 INFO L225 Difference]: With dead ends: 1229 [2024-11-08 18:49:49,147 INFO L226 Difference]: Without dead ends: 748 [2024-11-08 18:49:49,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:49:49,150 INFO L432 NwaCegarLoop]: 548 mSDtfsCounter, 110 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 2007 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:49:49,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 2007 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:49:49,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2024-11-08 18:49:49,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 739. [2024-11-08 18:49:49,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 739 states, 728 states have (on average 1.4134615384615385) internal successors, (1029), 728 states have internal predecessors, (1029), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:49:49,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 739 states to 739 states and 1047 transitions. [2024-11-08 18:49:49,188 INFO L78 Accepts]: Start accepts. Automaton has 739 states and 1047 transitions. Word has length 188 [2024-11-08 18:49:49,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:49:49,189 INFO L471 AbstractCegarLoop]: Abstraction has 739 states and 1047 transitions. [2024-11-08 18:49:49,189 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:49:49,190 INFO L276 IsEmpty]: Start isEmpty. Operand 739 states and 1047 transitions. [2024-11-08 18:49:49,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-08 18:49:49,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:49,196 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:49,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 18:49:49,197 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:49,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:49,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1025053102, now seen corresponding path program 1 times [2024-11-08 18:49:49,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:49,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363239733] [2024-11-08 18:49:49,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:49,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:49,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:49,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:49:49,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:49,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:49:49,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:49,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 18:49:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:49,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 18:49:49,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:49,717 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:49:49,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:49,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363239733] [2024-11-08 18:49:49,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363239733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:49,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:49,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 18:49:49,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195439673] [2024-11-08 18:49:49,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:49,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:49:49,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:49,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:49:49,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 18:49:49,723 INFO L87 Difference]: Start difference. First operand 739 states and 1047 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:49:50,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:49:50,322 INFO L93 Difference]: Finished difference Result 1219 states and 1738 transitions. [2024-11-08 18:49:50,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:49:50,323 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 188 [2024-11-08 18:49:50,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:49:50,329 INFO L225 Difference]: With dead ends: 1219 [2024-11-08 18:49:50,329 INFO L226 Difference]: Without dead ends: 754 [2024-11-08 18:49:50,331 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 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 18:49:50,333 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 4 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 18:49:50,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 1583 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 18:49:50,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2024-11-08 18:49:50,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 751. [2024-11-08 18:49:50,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 751 states, 740 states have (on average 1.4067567567567567) internal successors, (1041), 740 states have internal predecessors, (1041), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:49:50,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 751 states to 751 states and 1059 transitions. [2024-11-08 18:49:50,378 INFO L78 Accepts]: Start accepts. Automaton has 751 states and 1059 transitions. Word has length 188 [2024-11-08 18:49:50,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:49:50,380 INFO L471 AbstractCegarLoop]: Abstraction has 751 states and 1059 transitions. [2024-11-08 18:49:50,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 3 states have internal predecessors, (171), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:49:50,381 INFO L276 IsEmpty]: Start isEmpty. Operand 751 states and 1059 transitions. [2024-11-08 18:49:50,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-08 18:49:50,385 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:50,385 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:50,385 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 18:49:50,386 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:50,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:50,387 INFO L85 PathProgramCache]: Analyzing trace with hash 1361456404, now seen corresponding path program 1 times [2024-11-08 18:49:50,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:50,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373612244] [2024-11-08 18:49:50,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:50,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:52,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:49:52,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:52,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:49:52,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:52,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 18:49:52,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:52,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 18:49:52,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:52,526 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:49:52,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:52,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373612244] [2024-11-08 18:49:52,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373612244] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:49:52,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [284177753] [2024-11-08 18:49:52,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:52,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:49:52,528 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:49:52,531 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:49:52,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 18:49:53,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:53,566 INFO L255 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-08 18:49:53,583 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:49:53,657 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 18:49:54,504 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 18:49:54,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 80 treesize of output 46 [2024-11-08 18:49:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:49:54,774 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:49:54,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [284177753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:54,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:49:54,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-08 18:49:54,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458950611] [2024-11-08 18:49:54,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:54,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 18:49:54,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:54,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 18:49:54,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-08 18:49:54,779 INFO L87 Difference]: Start difference. First operand 751 states and 1059 transitions. Second operand has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:49:57,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:49:57,726 INFO L93 Difference]: Finished difference Result 1513 states and 2123 transitions. [2024-11-08 18:49:57,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 18:49:57,727 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 188 [2024-11-08 18:49:57,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:49:57,731 INFO L225 Difference]: With dead ends: 1513 [2024-11-08 18:49:57,731 INFO L226 Difference]: Without dead ends: 856 [2024-11-08 18:49:57,733 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2024-11-08 18:49:57,734 INFO L432 NwaCegarLoop]: 555 mSDtfsCounter, 821 mSDsluCounter, 2627 mSDsCounter, 0 mSdLazyCounter, 898 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 3182 SdHoareTripleChecker+Invalid, 905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:49:57,734 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 3182 Invalid, 905 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 898 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-08 18:49:57,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 856 states. [2024-11-08 18:49:57,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 856 to 784. [2024-11-08 18:49:57,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 773 states have (on average 1.3971539456662354) internal successors, (1080), 773 states have internal predecessors, (1080), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:49:57,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1098 transitions. [2024-11-08 18:49:57,768 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1098 transitions. Word has length 188 [2024-11-08 18:49:57,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:49:57,768 INFO L471 AbstractCegarLoop]: Abstraction has 784 states and 1098 transitions. [2024-11-08 18:49:57,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 15.545454545454545) internal successors, (171), 11 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:49:57,769 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1098 transitions. [2024-11-08 18:49:57,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2024-11-08 18:49:57,772 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:57,772 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:57,802 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 18:49:57,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-08 18:49:57,977 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:57,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:57,978 INFO L85 PathProgramCache]: Analyzing trace with hash 1931728210, now seen corresponding path program 1 times [2024-11-08 18:49:57,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:57,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148629350] [2024-11-08 18:49:57,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:57,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:58,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:58,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 18:49:58,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:58,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 18:49:58,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:58,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-11-08 18:49:58,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:58,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 18:49:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:49:58,412 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:49:58,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:49:58,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148629350] [2024-11-08 18:49:58,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1148629350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:49:58,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:49:58,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 18:49:58,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376145048] [2024-11-08 18:49:58,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:49:58,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:49:58,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:49:58,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:49:58,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 18:49:58,416 INFO L87 Difference]: Start difference. First operand 784 states and 1098 transitions. Second operand has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:49:59,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:49:59,169 INFO L93 Difference]: Finished difference Result 1417 states and 1984 transitions. [2024-11-08 18:49:59,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 18:49:59,170 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 188 [2024-11-08 18:49:59,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:49:59,174 INFO L225 Difference]: With dead ends: 1417 [2024-11-08 18:49:59,174 INFO L226 Difference]: Without dead ends: 644 [2024-11-08 18:49:59,175 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-08 18:49:59,176 INFO L432 NwaCegarLoop]: 473 mSDtfsCounter, 12 mSDsluCounter, 1312 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1785 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:49:59,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1785 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-08 18:49:59,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 644 states. [2024-11-08 18:49:59,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 644 to 641. [2024-11-08 18:49:59,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 630 states have (on average 1.3714285714285714) internal successors, (864), 630 states have internal predecessors, (864), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:49:59,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 882 transitions. [2024-11-08 18:49:59,203 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 882 transitions. Word has length 188 [2024-11-08 18:49:59,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:49:59,204 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 882 transitions. [2024-11-08 18:49:59,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.2) internal successors, (171), 4 states have internal predecessors, (171), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:49:59,204 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 882 transitions. [2024-11-08 18:49:59,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-08 18:49:59,207 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:49:59,208 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:49:59,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 18:49:59,208 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:49:59,209 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:49:59,209 INFO L85 PathProgramCache]: Analyzing trace with hash -820793684, now seen corresponding path program 1 times [2024-11-08 18:49:59,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:49:59,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575540724] [2024-11-08 18:49:59,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:49:59,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:49:59,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:00,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 18:50:00,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:00,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 18:50:00,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:00,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2024-11-08 18:50:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:00,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:50:00,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:50:00,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:00,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575540724] [2024-11-08 18:50:00,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575540724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:50:00,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1355268720] [2024-11-08 18:50:00,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:00,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:50:00,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:50:00,463 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:50:00,466 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 18:50:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:01,371 INFO L255 TraceCheckSpWp]: Trace formula consists of 1025 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-08 18:50:01,387 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:50:01,479 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:50:01,480 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:50:01,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1355268720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:01,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:50:01,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-08 18:50:01,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013053886] [2024-11-08 18:50:01,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:01,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 18:50:01,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:01,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 18:50:01,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:50:01,485 INFO L87 Difference]: Start difference. First operand 641 states and 882 transitions. Second operand has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:50:01,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:01,692 INFO L93 Difference]: Finished difference Result 1243 states and 1723 transitions. [2024-11-08 18:50:01,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 18:50:01,693 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 189 [2024-11-08 18:50:01,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:01,697 INFO L225 Difference]: With dead ends: 1243 [2024-11-08 18:50:01,697 INFO L226 Difference]: Without dead ends: 641 [2024-11-08 18:50:01,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 194 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 18:50:01,703 INFO L432 NwaCegarLoop]: 480 mSDtfsCounter, 13 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1315 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 18:50:01,703 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1315 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 18:50:01,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2024-11-08 18:50:01,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 641. [2024-11-08 18:50:01,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 630 states have (on average 1.3682539682539683) internal successors, (862), 630 states have internal predecessors, (862), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:50:01,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 880 transitions. [2024-11-08 18:50:01,728 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 880 transitions. Word has length 189 [2024-11-08 18:50:01,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:01,728 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 880 transitions. [2024-11-08 18:50:01,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 43.0) internal successors, (172), 4 states have internal predecessors, (172), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:50:01,729 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 880 transitions. [2024-11-08 18:50:01,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-11-08 18:50:01,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:01,732 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:50:01,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-08 18:50:01,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-08 18:50:01,937 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:01,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:01,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1030918425, now seen corresponding path program 1 times [2024-11-08 18:50:01,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:01,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876036685] [2024-11-08 18:50:01,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:01,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:02,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:02,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 18:50:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:02,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 18:50:02,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:02,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-08 18:50:02,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:02,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-08 18:50:02,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:02,819 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:50:02,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:02,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876036685] [2024-11-08 18:50:02,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876036685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:02,820 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:02,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 18:50:02,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743932706] [2024-11-08 18:50:02,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:02,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 18:50:02,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:02,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 18:50:02,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:50:02,823 INFO L87 Difference]: Start difference. First operand 641 states and 880 transitions. Second operand has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:50:03,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:03,729 INFO L93 Difference]: Finished difference Result 1249 states and 1737 transitions. [2024-11-08 18:50:03,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 18:50:03,730 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 190 [2024-11-08 18:50:03,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:03,733 INFO L225 Difference]: With dead ends: 1249 [2024-11-08 18:50:03,733 INFO L226 Difference]: Without dead ends: 650 [2024-11-08 18:50:03,734 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 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 18:50:03,735 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 7 mSDsluCounter, 2006 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 2484 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:03,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 2484 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:50:03,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2024-11-08 18:50:03,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 647. [2024-11-08 18:50:03,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 647 states, 636 states have (on average 1.3647798742138364) internal successors, (868), 636 states have internal predecessors, (868), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:50:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 647 states to 647 states and 886 transitions. [2024-11-08 18:50:03,757 INFO L78 Accepts]: Start accepts. Automaton has 647 states and 886 transitions. Word has length 190 [2024-11-08 18:50:03,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:03,757 INFO L471 AbstractCegarLoop]: Abstraction has 647 states and 886 transitions. [2024-11-08 18:50:03,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.714285714285715) internal successors, (173), 6 states have internal predecessors, (173), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:50:03,758 INFO L276 IsEmpty]: Start isEmpty. Operand 647 states and 886 transitions. [2024-11-08 18:50:03,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-08 18:50:03,761 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:03,761 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:50:03,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-08 18:50:03,762 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:03,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:03,763 INFO L85 PathProgramCache]: Analyzing trace with hash -539938893, now seen corresponding path program 1 times [2024-11-08 18:50:03,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:03,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932707318] [2024-11-08 18:50:03,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:03,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:04,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:50:04,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:04,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:50:04,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:04,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 18:50:04,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:04,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-08 18:50:04,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:04,546 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-08 18:50:04,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:04,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932707318] [2024-11-08 18:50:04,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932707318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:04,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:04,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:50:04,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129852429] [2024-11-08 18:50:04,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:04,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:50:04,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:04,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:50:04,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:50:04,551 INFO L87 Difference]: Start difference. First operand 647 states and 886 transitions. Second operand has 8 states, 8 states have (on average 21.75) internal successors, (174), 7 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:50:05,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:05,643 INFO L93 Difference]: Finished difference Result 1255 states and 1741 transitions. [2024-11-08 18:50:05,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:50:05,644 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 7 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 191 [2024-11-08 18:50:05,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:05,648 INFO L225 Difference]: With dead ends: 1255 [2024-11-08 18:50:05,648 INFO L226 Difference]: Without dead ends: 660 [2024-11-08 18:50:05,650 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 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 18:50:05,650 INFO L432 NwaCegarLoop]: 468 mSDtfsCounter, 11 mSDsluCounter, 2400 mSDsCounter, 0 mSdLazyCounter, 511 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2868 SdHoareTripleChecker+Invalid, 518 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:05,651 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2868 Invalid, 518 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 511 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-08 18:50:05,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 660 states. [2024-11-08 18:50:05,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 660 to 655. [2024-11-08 18:50:05,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 655 states, 644 states have (on average 1.3633540372670807) internal successors, (878), 644 states have internal predecessors, (878), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-08 18:50:05,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 655 states to 655 states and 896 transitions. [2024-11-08 18:50:05,681 INFO L78 Accepts]: Start accepts. Automaton has 655 states and 896 transitions. Word has length 191 [2024-11-08 18:50:05,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:05,682 INFO L471 AbstractCegarLoop]: Abstraction has 655 states and 896 transitions. [2024-11-08 18:50:05,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.75) internal successors, (174), 7 states have internal predecessors, (174), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-08 18:50:05,682 INFO L276 IsEmpty]: Start isEmpty. Operand 655 states and 896 transitions. [2024-11-08 18:50:05,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2024-11-08 18:50:05,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:05,686 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:50:05,686 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 18:50:05,686 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:05,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:05,687 INFO L85 PathProgramCache]: Analyzing trace with hash 491631439, now seen corresponding path program 1 times [2024-11-08 18:50:05,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:05,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796740413] [2024-11-08 18:50:05,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:05,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:07,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:07,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:50:07,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:07,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 18:50:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:07,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2024-11-08 18:50:07,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:07,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-11-08 18:50:07,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:07,670 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 18:50:07,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:07,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796740413] [2024-11-08 18:50:07,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796740413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:50:07,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [85548149] [2024-11-08 18:50:07,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:07,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:50:07,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:50:07,675 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:50:07,676 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 18:50:08,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:08,687 INFO L255 TraceCheckSpWp]: Trace formula consists of 1024 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-08 18:50:08,694 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:50:08,759 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 18:50:08,759 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:50:08,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [85548149] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:08,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:50:08,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-08 18:50:08,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755230767] [2024-11-08 18:50:08,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:08,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 18:50:08,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:08,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 18:50:08,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:50:08,763 INFO L87 Difference]: Start difference. First operand 655 states and 896 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:50:08,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:08,909 INFO L93 Difference]: Finished difference Result 1280 states and 1768 transitions. [2024-11-08 18:50:08,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 18:50:08,910 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 191 [2024-11-08 18:50:08,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:08,914 INFO L225 Difference]: With dead ends: 1280 [2024-11-08 18:50:08,914 INFO L226 Difference]: Without dead ends: 721 [2024-11-08 18:50:08,916 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 18:50:08,916 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 450 mSDsluCounter, 1520 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:08,917 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 2045 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 18:50:08,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 721 states. [2024-11-08 18:50:08,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 721 to 658. [2024-11-08 18:50:08,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 658 states, 646 states have (on average 1.3637770897832817) internal successors, (881), 647 states have internal predecessors, (881), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-08 18:50:08,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 658 states to 658 states and 902 transitions. [2024-11-08 18:50:08,947 INFO L78 Accepts]: Start accepts. Automaton has 658 states and 902 transitions. Word has length 191 [2024-11-08 18:50:08,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:08,948 INFO L471 AbstractCegarLoop]: Abstraction has 658 states and 902 transitions. [2024-11-08 18:50:08,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:50:08,948 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states and 902 transitions. [2024-11-08 18:50:08,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-11-08 18:50:08,952 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:08,952 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:50:08,985 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-08 18:50:09,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:50:09,154 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:09,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:09,154 INFO L85 PathProgramCache]: Analyzing trace with hash -756158125, now seen corresponding path program 1 times [2024-11-08 18:50:09,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:09,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568914028] [2024-11-08 18:50:09,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:09,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:10,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:10,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:50:10,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:10,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 18:50:10,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:10,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-11-08 18:50:10,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:10,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-08 18:50:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:10,742 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 18:50:10,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:10,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568914028] [2024-11-08 18:50:10,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568914028] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:50:10,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1533322234] [2024-11-08 18:50:10,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:10,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:50:10,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:50:10,745 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:50:10,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 18:50:11,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:11,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-08 18:50:12,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:50:12,222 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 18:50:12,222 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 18:50:12,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1533322234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:12,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 18:50:12,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2024-11-08 18:50:12,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696095992] [2024-11-08 18:50:12,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:12,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 18:50:12,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:12,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 18:50:12,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:50:12,225 INFO L87 Difference]: Start difference. First operand 658 states and 902 transitions. Second operand has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 9 states have internal predecessors, (179), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:50:13,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:13,144 INFO L93 Difference]: Finished difference Result 1180 states and 1620 transitions. [2024-11-08 18:50:13,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-08 18:50:13,145 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 9 states have internal predecessors, (179), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 195 [2024-11-08 18:50:13,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:13,149 INFO L225 Difference]: With dead ends: 1180 [2024-11-08 18:50:13,149 INFO L226 Difference]: Without dead ends: 764 [2024-11-08 18:50:13,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 195 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2024-11-08 18:50:13,152 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 32 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 2763 SdHoareTripleChecker+Invalid, 702 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:13,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 2763 Invalid, 702 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-08 18:50:13,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2024-11-08 18:50:13,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 740. [2024-11-08 18:50:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 740 states, 728 states have (on average 1.3475274725274726) internal successors, (981), 729 states have internal predecessors, (981), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-08 18:50:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 740 states to 740 states and 1002 transitions. [2024-11-08 18:50:13,207 INFO L78 Accepts]: Start accepts. Automaton has 740 states and 1002 transitions. Word has length 195 [2024-11-08 18:50:13,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:13,208 INFO L471 AbstractCegarLoop]: Abstraction has 740 states and 1002 transitions. [2024-11-08 18:50:13,208 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 9 states have internal predecessors, (179), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:50:13,209 INFO L276 IsEmpty]: Start isEmpty. Operand 740 states and 1002 transitions. [2024-11-08 18:50:13,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2024-11-08 18:50:13,212 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:13,212 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:50:13,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 18:50:13,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 18:50:13,413 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:13,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:13,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1173680119, now seen corresponding path program 1 times [2024-11-08 18:50:13,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:13,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393575272] [2024-11-08 18:50:13,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:13,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:13,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:14,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:50:14,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:14,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 18:50:14,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:14,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-08 18:50:14,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:14,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-08 18:50:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:14,740 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 18:50:14,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:14,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393575272] [2024-11-08 18:50:14,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393575272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:14,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:14,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:50:14,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054505313] [2024-11-08 18:50:14,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:14,742 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:50:14,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:14,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:50:14,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:50:14,745 INFO L87 Difference]: Start difference. First operand 740 states and 1002 transitions. Second operand has 8 states, 8 states have (on average 22.0) internal successors, (176), 7 states have internal predecessors, (176), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:50:16,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:16,517 INFO L93 Difference]: Finished difference Result 1202 states and 1633 transitions. [2024-11-08 18:50:16,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:50:16,518 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 7 states have internal predecessors, (176), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 196 [2024-11-08 18:50:16,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:16,522 INFO L225 Difference]: With dead ends: 1202 [2024-11-08 18:50:16,523 INFO L226 Difference]: Without dead ends: 746 [2024-11-08 18:50:16,524 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-08 18:50:16,524 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 22 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 923 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2536 SdHoareTripleChecker+Invalid, 928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 923 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:16,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2536 Invalid, 928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 923 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-08 18:50:16,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 746 states. [2024-11-08 18:50:16,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 746 to 734. [2024-11-08 18:50:16,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 734 states, 722 states have (on average 1.3448753462603877) internal successors, (971), 723 states have internal predecessors, (971), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-08 18:50:16,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 734 states to 734 states and 992 transitions. [2024-11-08 18:50:16,559 INFO L78 Accepts]: Start accepts. Automaton has 734 states and 992 transitions. Word has length 196 [2024-11-08 18:50:16,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:16,560 INFO L471 AbstractCegarLoop]: Abstraction has 734 states and 992 transitions. [2024-11-08 18:50:16,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.0) internal successors, (176), 7 states have internal predecessors, (176), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:50:16,561 INFO L276 IsEmpty]: Start isEmpty. Operand 734 states and 992 transitions. [2024-11-08 18:50:16,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2024-11-08 18:50:16,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:16,564 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:50:16,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-08 18:50:16,565 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:16,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:16,565 INFO L85 PathProgramCache]: Analyzing trace with hash -752641960, now seen corresponding path program 1 times [2024-11-08 18:50:16,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:16,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143799390] [2024-11-08 18:50:16,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:16,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:16,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:17,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:50:17,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:17,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 18:50:17,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:17,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-08 18:50:17,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:17,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-08 18:50:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:17,634 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-08 18:50:17,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:17,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143799390] [2024-11-08 18:50:17,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143799390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:50:17,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:50:17,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 18:50:17,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607400779] [2024-11-08 18:50:17,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:50:17,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 18:50:17,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:50:17,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 18:50:17,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-08 18:50:17,638 INFO L87 Difference]: Start difference. First operand 734 states and 992 transitions. Second operand has 8 states, 8 states have (on average 22.125) internal successors, (177), 7 states have internal predecessors, (177), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:50:19,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:50:19,061 INFO L93 Difference]: Finished difference Result 1201 states and 1630 transitions. [2024-11-08 18:50:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 18:50:19,062 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 22.125) internal successors, (177), 7 states have internal predecessors, (177), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 197 [2024-11-08 18:50:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:50:19,066 INFO L225 Difference]: With dead ends: 1201 [2024-11-08 18:50:19,066 INFO L226 Difference]: Without dead ends: 750 [2024-11-08 18:50:19,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 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 18:50:19,068 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 17 mSDsluCounter, 2084 mSDsCounter, 0 mSdLazyCounter, 906 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 2565 SdHoareTripleChecker+Invalid, 911 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 906 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-08 18:50:19,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 2565 Invalid, 911 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 906 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-08 18:50:19,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2024-11-08 18:50:19,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 742. [2024-11-08 18:50:19,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 742 states, 730 states have (on average 1.3438356164383563) internal successors, (981), 731 states have internal predecessors, (981), 9 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (12), 9 states have call predecessors, (12), 9 states have call successors, (12) [2024-11-08 18:50:19,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 742 states to 742 states and 1002 transitions. [2024-11-08 18:50:19,098 INFO L78 Accepts]: Start accepts. Automaton has 742 states and 1002 transitions. Word has length 197 [2024-11-08 18:50:19,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:50:19,098 INFO L471 AbstractCegarLoop]: Abstraction has 742 states and 1002 transitions. [2024-11-08 18:50:19,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.125) internal successors, (177), 7 states have internal predecessors, (177), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-08 18:50:19,099 INFO L276 IsEmpty]: Start isEmpty. Operand 742 states and 1002 transitions. [2024-11-08 18:50:19,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2024-11-08 18:50:19,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:50:19,102 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 18:50:19,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-08 18:50:19,103 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:50:19,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:50:19,103 INFO L85 PathProgramCache]: Analyzing trace with hash 220829550, now seen corresponding path program 1 times [2024-11-08 18:50:19,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:50:19,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349849199] [2024-11-08 18:50:19,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:19,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:50:20,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:20,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-08 18:50:20,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:20,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-08 18:50:20,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:20,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-08 18:50:20,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:20,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-11-08 18:50:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:20,981 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 1 proven. 19 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-08 18:50:20,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:50:20,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349849199] [2024-11-08 18:50:20,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349849199] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 18:50:20,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033876580] [2024-11-08 18:50:20,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:50:20,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 18:50:20,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:50:20,985 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 18:50:20,987 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89e0e4ba-c3fc-4d2f-99a0-7cd0efc23cd0/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 18:50:22,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:50:22,138 INFO L255 TraceCheckSpWp]: Trace formula consists of 1084 conjuncts, 147 conjuncts are in the unsatisfiable core [2024-11-08 18:50:22,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 18:50:22,184 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 18:50:22,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-11-08 18:50:22,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 11 [2024-11-08 18:50:22,962 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 11 [2024-11-08 18:50:22,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 23 treesize of output 11 [2024-11-08 18:50:22,999 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 15 treesize of output 1 [2024-11-08 18:50:23,028 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2024-11-08 18:50:23,029 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 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 18:50:23,080 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 18:50:23,237 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 18 treesize of output 10 [2024-11-08 18:50:23,246 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 18:50:23,257 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 18:50:23,630 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2024-11-08 18:50:23,631 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 66 treesize of output 57 [2024-11-08 18:50:23,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 24 treesize of output 11 [2024-11-08 18:50:23,658 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 24 treesize of output 11 [2024-11-08 18:51:52,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-08 18:51:54,526 INFO L224 Elim1Store]: Index analysis took 1967 ms