./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/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_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/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_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/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 fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 17:06:58,293 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 17:06:58,395 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 17:06:58,403 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 17:06:58,406 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 17:06:58,451 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 17:06:58,453 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 17:06:58,455 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 17:06:58,455 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 17:06:58,456 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 17:06:58,457 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 17:06:58,458 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 17:06:58,459 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 17:06:58,459 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 17:06:58,459 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 17:06:58,460 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 17:06:58,460 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 17:06:58,461 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 17:06:58,461 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 17:06:58,462 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 17:06:58,462 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 17:06:58,467 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 17:06:58,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 17:06:58,468 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 17:06:58,471 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 17:06:58,472 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 17:06:58,472 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 17:06:58,472 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 17:06:58,473 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 17:06:58,473 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 17:06:58,474 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 17:06:58,474 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 17:06:58,475 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:06:58,476 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 17:06:58,476 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 17:06:58,477 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 17:06:58,478 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 17:06:58,478 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 17:06:58,479 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 17:06:58,479 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 17:06:58,479 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 17:06:58,480 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 17:06:58,480 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_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fdc85b042221b41aa26e62667e19ce1f6c246be9a2cb4f81fe8b15c8429db160 [2024-11-08 17:06:58,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 17:06:58,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 17:06:58,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 17:06:58,884 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 17:06:58,885 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 17:06:58,887 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i Unable to find full path for "g++" [2024-11-08 17:07:01,445 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 17:07:01,769 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 17:07:01,770 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i [2024-11-08 17:07:01,796 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/data/32341f64d/436262c5697f4044b23160193baac0ed/FLAGe31e338e8 [2024-11-08 17:07:01,827 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/data/32341f64d/436262c5697f4044b23160193baac0ed [2024-11-08 17:07:01,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 17:07:01,834 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 17:07:01,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 17:07:01,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 17:07:01,845 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 17:07:01,849 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:07:01" (1/1) ... [2024-11-08 17:07:01,851 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d52bd67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:01, skipping insertion in model container [2024-11-08 17:07:01,851 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 05:07:01" (1/1) ... [2024-11-08 17:07:01,949 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 17:07:02,464 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_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i[33519,33532] [2024-11-08 17:07:02,618 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:07:02,642 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 17:07:02,718 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_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/sv-benchmarks/c/uthash-2.0.2/uthash_SAX_nondet_test1-1.i[33519,33532] [2024-11-08 17:07:02,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 17:07:02,925 INFO L204 MainTranslator]: Completed translation [2024-11-08 17:07:02,925 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02 WrapperNode [2024-11-08 17:07:02,926 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 17:07:02,932 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 17:07:02,932 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 17:07:02,932 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 17:07:02,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,029 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,105 INFO L138 Inliner]: procedures = 176, calls = 169, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 779 [2024-11-08 17:07:03,105 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 17:07:03,106 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 17:07:03,106 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 17:07:03,107 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 17:07:03,132 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,133 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,141 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,211 INFO L175 MemorySlicer]: Split 158 memory accesses to 2 slices as follows [2, 156]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 42 writes are split as follows [0, 42]. [2024-11-08 17:07:03,215 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,266 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,284 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,288 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,301 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,312 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 17:07:03,313 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 17:07:03,313 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 17:07:03,314 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 17:07:03,315 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (1/1) ... [2024-11-08 17:07:03,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 17:07:03,338 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:07:03,368 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 17:07:03,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 17:07:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 17:07:03,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 17:07:03,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 17:07:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 17:07:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-08 17:07:03,422 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-08 17:07:03,422 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-08 17:07:03,423 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-08 17:07:03,423 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-08 17:07:03,425 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 17:07:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-08 17:07:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-08 17:07:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-08 17:07:03,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-08 17:07:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 17:07:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 17:07:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 17:07:03,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 17:07:03,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 17:07:03,712 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 17:07:03,714 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 17:07:05,249 INFO L? ?]: Removed 199 outVars from TransFormulas that were not future-live. [2024-11-08 17:07:05,249 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 17:07:05,280 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 17:07:05,281 INFO L316 CfgBuilder]: Removed 27 assume(true) statements. [2024-11-08 17:07:05,281 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:07:05 BoogieIcfgContainer [2024-11-08 17:07:05,282 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 17:07:05,287 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 17:07:05,287 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 17:07:05,293 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 17:07:05,293 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 05:07:01" (1/3) ... [2024-11-08 17:07:05,294 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4452beb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:07:05, skipping insertion in model container [2024-11-08 17:07:05,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 05:07:02" (2/3) ... [2024-11-08 17:07:05,295 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4452beb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 05:07:05, skipping insertion in model container [2024-11-08 17:07:05,295 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 05:07:05" (3/3) ... [2024-11-08 17:07:05,299 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_SAX_nondet_test1-1.i [2024-11-08 17:07:05,325 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 17:07:05,325 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 17:07:05,446 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 17:07:05,455 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;@57d22e5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 17:07:05,456 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 17:07:05,465 INFO L276 IsEmpty]: Start isEmpty. Operand has 214 states, 208 states have (on average 1.5961538461538463) internal successors, (332), 209 states have internal predecessors, (332), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:07:05,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-08 17:07:05,476 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:05,477 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:05,478 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:05,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:05,486 INFO L85 PathProgramCache]: Analyzing trace with hash -182090968, now seen corresponding path program 1 times [2024-11-08 17:07:05,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:05,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111541167] [2024-11-08 17:07:05,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:05,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:05,755 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 17:07:05,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:05,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111541167] [2024-11-08 17:07:05,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111541167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:05,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:07:05,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:07:05,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923133953] [2024-11-08 17:07:05,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:05,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:07:05,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:05,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:07:05,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:07:05,817 INFO L87 Difference]: Start difference. First operand has 214 states, 208 states have (on average 1.5961538461538463) internal successors, (332), 209 states have internal predecessors, (332), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 17:07:06,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:06,012 INFO L93 Difference]: Finished difference Result 623 states and 993 transitions. [2024-11-08 17:07:06,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:07:06,022 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2024-11-08 17:07:06,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:06,047 INFO L225 Difference]: With dead ends: 623 [2024-11-08 17:07:06,047 INFO L226 Difference]: Without dead ends: 407 [2024-11-08 17:07:06,053 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:07:06,057 INFO L432 NwaCegarLoop]: 302 mSDtfsCounter, 279 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 600 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:06,059 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 600 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:07:06,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2024-11-08 17:07:06,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 212. [2024-11-08 17:07:06,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.4396135265700483) internal successors, (298), 207 states have internal predecessors, (298), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:07:06,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 304 transitions. [2024-11-08 17:07:06,139 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 304 transitions. Word has length 8 [2024-11-08 17:07:06,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:06,140 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 304 transitions. [2024-11-08 17:07:06,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 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 17:07:06,140 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 304 transitions. [2024-11-08 17:07:06,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 17:07:06,148 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:06,148 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:06,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 17:07:06,149 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:06,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:06,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1463168598, now seen corresponding path program 1 times [2024-11-08 17:07:06,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:06,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231516822] [2024-11-08 17:07:06,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:06,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:06,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:06,834 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:07:06,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:06,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231516822] [2024-11-08 17:07:06,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231516822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:06,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:07:06,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:07:06,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130499317] [2024-11-08 17:07:06,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:06,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:07:06,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:06,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:07:06,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:07:06,844 INFO L87 Difference]: Start difference. First operand 212 states and 304 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 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 17:07:07,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:07,032 INFO L93 Difference]: Finished difference Result 423 states and 607 transitions. [2024-11-08 17:07:07,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:07:07,033 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-08 17:07:07,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:07,035 INFO L225 Difference]: With dead ends: 423 [2024-11-08 17:07:07,036 INFO L226 Difference]: Without dead ends: 215 [2024-11-08 17:07:07,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:07:07,039 INFO L432 NwaCegarLoop]: 272 mSDtfsCounter, 107 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 723 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:07,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 723 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:07:07,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-08 17:07:07,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 212. [2024-11-08 17:07:07,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 207 states have (on average 1.4057971014492754) internal successors, (291), 207 states have internal predecessors, (291), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:07:07,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 297 transitions. [2024-11-08 17:07:07,073 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 297 transitions. Word has length 84 [2024-11-08 17:07:07,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:07,074 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 297 transitions. [2024-11-08 17:07:07,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 states have internal predecessors, (84), 0 states have call successors, (0), 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 17:07:07,075 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 297 transitions. [2024-11-08 17:07:07,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-08 17:07:07,079 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:07,079 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:07,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 17:07:07,082 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:07,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:07,083 INFO L85 PathProgramCache]: Analyzing trace with hash 1446357602, now seen corresponding path program 1 times [2024-11-08 17:07:07,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:07,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864906064] [2024-11-08 17:07:07,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:07,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:07,560 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 17:07:07,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:07,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864906064] [2024-11-08 17:07:07,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864906064] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:07:07,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:07:07,565 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 17:07:07,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919151317] [2024-11-08 17:07:07,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:07:07,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 17:07:07,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:07,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 17:07:07,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:07:07,573 INFO L87 Difference]: Start difference. First operand 212 states and 297 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 17:07:07,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:07,646 INFO L93 Difference]: Finished difference Result 550 states and 781 transitions. [2024-11-08 17:07:07,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 17:07:07,650 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-08 17:07:07,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:07,653 INFO L225 Difference]: With dead ends: 550 [2024-11-08 17:07:07,654 INFO L226 Difference]: Without dead ends: 342 [2024-11-08 17:07:07,655 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 17:07:07,657 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 136 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:07,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 580 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 17:07:07,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2024-11-08 17:07:07,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2024-11-08 17:07:07,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 337 states have (on average 1.427299703264095) internal successors, (481), 337 states have internal predecessors, (481), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 17:07:07,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 487 transitions. [2024-11-08 17:07:07,689 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 487 transitions. Word has length 84 [2024-11-08 17:07:07,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:07,690 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 487 transitions. [2024-11-08 17:07:07,690 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 17:07:07,695 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 487 transitions. [2024-11-08 17:07:07,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-08 17:07:07,702 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:07,702 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] [2024-11-08 17:07:07,703 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 17:07:07,703 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:07,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:07,704 INFO L85 PathProgramCache]: Analyzing trace with hash -454896052, now seen corresponding path program 1 times [2024-11-08 17:07:07,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:07,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820389002] [2024-11-08 17:07:07,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:07,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:07,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:08,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:07:08,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:08,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:07:08,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:08,173 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:07:08,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:08,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820389002] [2024-11-08 17:07:08,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820389002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:07:08,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460897589] [2024-11-08 17:07:08,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:08,177 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:07:08,190 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:07:08,193 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:07:08,198 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 17:07:08,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:08,659 INFO L255 TraceCheckSpWp]: Trace formula consists of 552 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 17:07:08,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:07:08,985 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:07:08,985 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:07:09,252 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:07:09,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460897589] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:07:09,257 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:07:09,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 8 [2024-11-08 17:07:09,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159657041] [2024-11-08 17:07:09,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:07:09,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:07:09,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:09,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:07:09,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:07:09,266 INFO L87 Difference]: Start difference. First operand 342 states and 487 transitions. Second operand has 8 states, 8 states have (on average 32.25) internal successors, (258), 7 states have internal predecessors, (258), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 17:07:09,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:09,695 INFO L93 Difference]: Finished difference Result 810 states and 1158 transitions. [2024-11-08 17:07:09,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:07:09,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 32.25) internal successors, (258), 7 states have internal predecessors, (258), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 99 [2024-11-08 17:07:09,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:09,703 INFO L225 Difference]: With dead ends: 810 [2024-11-08 17:07:09,703 INFO L226 Difference]: Without dead ends: 803 [2024-11-08 17:07:09,704 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:07:09,706 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 1835 mSDsluCounter, 1068 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1851 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:09,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1851 Valid, 1357 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:07:09,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 803 states. [2024-11-08 17:07:09,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 803 to 800. [2024-11-08 17:07:09,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 800 states, 786 states have (on average 1.405852417302799) internal successors, (1105), 786 states have internal predecessors, (1105), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 17:07:09,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 800 states to 800 states and 1129 transitions. [2024-11-08 17:07:09,772 INFO L78 Accepts]: Start accepts. Automaton has 800 states and 1129 transitions. Word has length 99 [2024-11-08 17:07:09,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:09,774 INFO L471 AbstractCegarLoop]: Abstraction has 800 states and 1129 transitions. [2024-11-08 17:07:09,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 32.25) internal successors, (258), 7 states have internal predecessors, (258), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 17:07:09,775 INFO L276 IsEmpty]: Start isEmpty. Operand 800 states and 1129 transitions. [2024-11-08 17:07:09,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2024-11-08 17:07:09,789 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:09,790 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:07:09,818 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 17:07:09,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:07:09,991 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:09,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:09,992 INFO L85 PathProgramCache]: Analyzing trace with hash 81470714, now seen corresponding path program 1 times [2024-11-08 17:07:09,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:09,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46188107] [2024-11-08 17:07:09,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:09,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:07:10,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:11,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:07:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:11,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:07:11,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:11,617 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 7 proven. 329 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2024-11-08 17:07:11,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:07:11,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46188107] [2024-11-08 17:07:11,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46188107] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:07:11,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245199513] [2024-11-08 17:07:11,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:11,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:07:11,619 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:07:11,621 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:07:11,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 17:07:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:07:12,534 INFO L255 TraceCheckSpWp]: Trace formula consists of 1662 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 17:07:12,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:07:13,388 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 454 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:07:13,389 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:07:14,130 INFO L134 CoverageAnalysis]: Checked inductivity of 458 backedges. 0 proven. 454 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-08 17:07:14,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245199513] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 17:07:14,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 17:07:14,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 17 [2024-11-08 17:07:14,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423041] [2024-11-08 17:07:14,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 17:07:14,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-08 17:07:14,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:07:14,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-08 17:07:14,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=196, Unknown=0, NotChecked=0, Total=272 [2024-11-08 17:07:14,136 INFO L87 Difference]: Start difference. First operand 800 states and 1129 transitions. Second operand has 17 states, 17 states have (on average 49.94117647058823) internal successors, (849), 16 states have internal predecessors, (849), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 17:07:16,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:07:16,236 INFO L93 Difference]: Finished difference Result 2375 states and 3385 transitions. [2024-11-08 17:07:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-08 17:07:16,237 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 49.94117647058823) internal successors, (849), 16 states have internal predecessors, (849), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 327 [2024-11-08 17:07:16,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:07:16,250 INFO L225 Difference]: With dead ends: 2375 [2024-11-08 17:07:16,250 INFO L226 Difference]: Without dead ends: 1906 [2024-11-08 17:07:16,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 656 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=316, Invalid=676, Unknown=0, NotChecked=0, Total=992 [2024-11-08 17:07:16,259 INFO L432 NwaCegarLoop]: 473 mSDtfsCounter, 12065 mSDsluCounter, 2926 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 119 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12065 SdHoareTripleChecker+Valid, 3399 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 119 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:07:16,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12065 Valid, 3399 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [119 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-08 17:07:16,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1906 states. [2024-11-08 17:07:16,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1906 to 1903. [2024-11-08 17:07:16,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1903 states, 1889 states have (on average 1.4150344097406036) internal successors, (2673), 1889 states have internal predecessors, (2673), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 17:07:16,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1903 states to 1903 states and 2697 transitions. [2024-11-08 17:07:16,353 INFO L78 Accepts]: Start accepts. Automaton has 1903 states and 2697 transitions. Word has length 327 [2024-11-08 17:07:16,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:07:16,354 INFO L471 AbstractCegarLoop]: Abstraction has 1903 states and 2697 transitions. [2024-11-08 17:07:16,354 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 49.94117647058823) internal successors, (849), 16 states have internal predecessors, (849), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-08 17:07:16,355 INFO L276 IsEmpty]: Start isEmpty. Operand 1903 states and 2697 transitions. [2024-11-08 17:07:16,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-08 17:07:16,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:07:16,379 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 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] [2024-11-08 17:07:16,403 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 17:07:16,583 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:07:16,584 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:07:16,584 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:07:16,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1117562725, now seen corresponding path program 1 times [2024-11-08 17:07:16,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:07:16,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750325598] [2024-11-08 17:07:16,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:07:16,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:08:37,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:39,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:08:39,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:39,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:08:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:08:39,480 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 505 proven. 3 refuted. 0 times theorem prover too weak. 2909 trivial. 0 not checked. [2024-11-08 17:08:39,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:08:39,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750325598] [2024-11-08 17:08:39,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750325598] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:08:39,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50498494] [2024-11-08 17:08:39,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:08:39,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:08:39,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:08:39,490 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:08:39,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 17:09:14,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:14,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 3890 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 17:09:14,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:09:14,174 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 22 treesize of output 7 [2024-11-08 17:09:14,823 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-08 17:09:14,824 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 77 treesize of output 55 [2024-11-08 17:09:15,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 298 proven. 0 refuted. 0 times theorem prover too weak. 3119 trivial. 0 not checked. [2024-11-08 17:09:15,216 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:09:15,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50498494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:15,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:09:15,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [5] total 14 [2024-11-08 17:09:15,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966767038] [2024-11-08 17:09:15,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:15,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-08 17:09:15,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:09:15,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-08 17:09:15,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-08 17:09:15,220 INFO L87 Difference]: Start difference. First operand 1903 states and 2697 transitions. Second operand has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 11 states have internal predecessors, (130), 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 17:09:17,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:17,674 INFO L93 Difference]: Finished difference Result 3771 states and 5339 transitions. [2024-11-08 17:09:17,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-08 17:09:17,675 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 11 states have internal predecessors, (130), 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 785 [2024-11-08 17:09:17,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:17,683 INFO L225 Difference]: With dead ends: 3771 [2024-11-08 17:09:17,683 INFO L226 Difference]: Without dead ends: 1955 [2024-11-08 17:09:17,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 799 GetRequests, 779 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2024-11-08 17:09:17,687 INFO L432 NwaCegarLoop]: 334 mSDtfsCounter, 570 mSDsluCounter, 1414 mSDsCounter, 0 mSdLazyCounter, 1080 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 572 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 1080 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:17,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [572 Valid, 1748 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 1080 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-08 17:09:17,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1955 states. [2024-11-08 17:09:17,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1955 to 1934. [2024-11-08 17:09:17,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1934 states, 1920 states have (on average 1.4125) internal successors, (2712), 1920 states have internal predecessors, (2712), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 17:09:17,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1934 states to 1934 states and 2736 transitions. [2024-11-08 17:09:17,750 INFO L78 Accepts]: Start accepts. Automaton has 1934 states and 2736 transitions. Word has length 785 [2024-11-08 17:09:17,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:17,750 INFO L471 AbstractCegarLoop]: Abstraction has 1934 states and 2736 transitions. [2024-11-08 17:09:17,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.818181818181818) internal successors, (130), 11 states have internal predecessors, (130), 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 17:09:17,751 INFO L276 IsEmpty]: Start isEmpty. Operand 1934 states and 2736 transitions. [2024-11-08 17:09:17,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-08 17:09:17,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:17,778 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:09:17,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 17:09:17,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:09:17,979 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:17,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:17,980 INFO L85 PathProgramCache]: Analyzing trace with hash 532153817, now seen corresponding path program 1 times [2024-11-08 17:09:17,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:09:17,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973801332] [2024-11-08 17:09:17,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:17,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:09:18,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:19,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:09:19,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:19,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:09:19,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:19,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 235 proven. 0 refuted. 0 times theorem prover too weak. 3182 trivial. 0 not checked. [2024-11-08 17:09:19,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:09:19,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973801332] [2024-11-08 17:09:19,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1973801332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:19,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:19,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 17:09:19,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2024434594] [2024-11-08 17:09:19,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:19,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:09:19,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:09:19,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:09:19,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 17:09:19,215 INFO L87 Difference]: Start difference. First operand 1934 states and 2736 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 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 17:09:19,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:19,489 INFO L93 Difference]: Finished difference Result 3836 states and 5448 transitions. [2024-11-08 17:09:19,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:09:19,490 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 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 785 [2024-11-08 17:09:19,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:19,497 INFO L225 Difference]: With dead ends: 3836 [2024-11-08 17:09:19,498 INFO L226 Difference]: Without dead ends: 2001 [2024-11-08 17:09:19,500 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 17:09:19,502 INFO L432 NwaCegarLoop]: 287 mSDtfsCounter, 5 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 795 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:19,503 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 795 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 17:09:19,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2001 states. [2024-11-08 17:09:19,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2001 to 1996. [2024-11-08 17:09:19,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1996 states, 1982 states have (on average 1.3985872855701311) internal successors, (2772), 1982 states have internal predecessors, (2772), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 17:09:19,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 2796 transitions. [2024-11-08 17:09:19,577 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 2796 transitions. Word has length 785 [2024-11-08 17:09:19,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:19,578 INFO L471 AbstractCegarLoop]: Abstraction has 1996 states and 2796 transitions. [2024-11-08 17:09:19,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 3 states have internal predecessors, (123), 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 17:09:19,578 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 2796 transitions. [2024-11-08 17:09:19,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 786 [2024-11-08 17:09:19,588 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:19,588 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 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] [2024-11-08 17:09:19,589 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 17:09:19,589 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:19,589 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:19,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1066818455, now seen corresponding path program 1 times [2024-11-08 17:09:19,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:09:19,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355545564] [2024-11-08 17:09:19,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:19,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:09:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:20,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 17:09:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:20,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-08 17:09:20,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:09:20,698 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 217 proven. 0 refuted. 0 times theorem prover too weak. 3200 trivial. 0 not checked. [2024-11-08 17:09:20,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:09:20,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355545564] [2024-11-08 17:09:20,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [355545564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:09:20,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:09:20,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 17:09:20,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050163722] [2024-11-08 17:09:20,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:09:20,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 17:09:20,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:09:20,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 17:09:20,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 17:09:20,702 INFO L87 Difference]: Start difference. First operand 1996 states and 2796 transitions. Second operand has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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 17:09:21,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:09:21,041 INFO L93 Difference]: Finished difference Result 3402 states and 4696 transitions. [2024-11-08 17:09:21,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 17:09:21,042 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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 785 [2024-11-08 17:09:21,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:09:21,048 INFO L225 Difference]: With dead ends: 3402 [2024-11-08 17:09:21,048 INFO L226 Difference]: Without dead ends: 1416 [2024-11-08 17:09:21,052 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 17:09:21,053 INFO L432 NwaCegarLoop]: 195 mSDtfsCounter, 12 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 96 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 96 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 17:09:21,054 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 719 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 96 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 17:09:21,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-11-08 17:09:21,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1413. [2024-11-08 17:09:21,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 1399 states have (on average 1.3238027162258756) internal successors, (1852), 1399 states have internal predecessors, (1852), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-08 17:09:21,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1876 transitions. [2024-11-08 17:09:21,105 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1876 transitions. Word has length 785 [2024-11-08 17:09:21,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:09:21,106 INFO L471 AbstractCegarLoop]: Abstraction has 1413 states and 1876 transitions. [2024-11-08 17:09:21,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.4) internal successors, (122), 4 states have internal predecessors, (122), 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 17:09:21,106 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1876 transitions. [2024-11-08 17:09:21,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 787 [2024-11-08 17:09:21,115 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:09:21,116 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 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] [2024-11-08 17:09:21,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 17:09:21,116 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:09:21,116 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:09:21,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1834412758, now seen corresponding path program 1 times [2024-11-08 17:09:21,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:09:21,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064262364] [2024-11-08 17:09:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:09:21,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:10:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:41,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:10:41,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:41,225 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-08 17:10:41,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:10:41,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 505 proven. 3 refuted. 0 times theorem prover too weak. 2909 trivial. 0 not checked. [2024-11-08 17:10:41,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:10:41,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064262364] [2024-11-08 17:10:41,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064262364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:10:41,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146700758] [2024-11-08 17:10:41,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:10:41,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:10:41,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:10:41,235 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:10:41,237 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 17:11:03,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:11:03,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 3891 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-08 17:11:03,301 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:11:03,483 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 22 treesize of output 7 [2024-11-08 17:11:04,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3417 backedges. 899 proven. 33 refuted. 0 times theorem prover too weak. 2485 trivial. 0 not checked. [2024-11-08 17:11:04,383 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:11:08,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146700758] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:11:08,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:11:08,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12] total 15 [2024-11-08 17:11:08,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864402004] [2024-11-08 17:11:08,025 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:11:08,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-08 17:11:08,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:11:08,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-08 17:11:08,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2024-11-08 17:11:08,028 INFO L87 Difference]: Start difference. First operand 1413 states and 1876 transitions. Second operand has 15 states, 15 states have (on average 18.2) internal successors, (273), 14 states have internal predecessors, (273), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 17:11:11,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:11:11,410 INFO L93 Difference]: Finished difference Result 2741 states and 3652 transitions. [2024-11-08 17:11:11,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-08 17:11:11,411 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 18.2) internal successors, (273), 14 states have internal predecessors, (273), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 786 [2024-11-08 17:11:11,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:11:11,418 INFO L225 Difference]: With dead ends: 2741 [2024-11-08 17:11:11,418 INFO L226 Difference]: Without dead ends: 1416 [2024-11-08 17:11:11,421 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1518 GetRequests, 1485 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=218, Invalid=972, Unknown=0, NotChecked=0, Total=1190 [2024-11-08 17:11:11,422 INFO L432 NwaCegarLoop]: 410 mSDtfsCounter, 390 mSDsluCounter, 2925 mSDsCounter, 0 mSdLazyCounter, 1396 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 3335 SdHoareTripleChecker+Invalid, 1403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-08 17:11:11,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 3335 Invalid, 1403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1396 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-08 17:11:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-11-08 17:11:11,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1416. [2024-11-08 17:11:11,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1401 states have (on average 1.323340471092077) internal successors, (1854), 1402 states have internal predecessors, (1854), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2024-11-08 17:11:11,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1888 transitions. [2024-11-08 17:11:11,475 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1888 transitions. Word has length 786 [2024-11-08 17:11:11,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:11:11,475 INFO L471 AbstractCegarLoop]: Abstraction has 1416 states and 1888 transitions. [2024-11-08 17:11:11,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 18.2) internal successors, (273), 14 states have internal predecessors, (273), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 17:11:11,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1888 transitions. [2024-11-08 17:11:11,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 790 [2024-11-08 17:11:11,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:11:11,484 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:11:11,540 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-08 17:11:11,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:11:11,685 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:11:11,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:11:11,686 INFO L85 PathProgramCache]: Analyzing trace with hash 552231227, now seen corresponding path program 1 times [2024-11-08 17:11:11,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:11:11,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524891775] [2024-11-08 17:11:11,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:11:11,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:13:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:43,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-08 17:13:43,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:44,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-08 17:13:44,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:13:44,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3423 backedges. 506 proven. 7 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2024-11-08 17:13:44,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:13:44,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524891775] [2024-11-08 17:13:44,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524891775] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:13:44,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874306769] [2024-11-08 17:13:44,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:13:44,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:13:44,054 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:13:44,056 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:13:44,058 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 17:14:00,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:00,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 3922 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-08 17:14:00,459 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:14:00,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3423 backedges. 924 proven. 0 refuted. 0 times theorem prover too weak. 2499 trivial. 0 not checked. [2024-11-08 17:14:00,569 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 17:14:00,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874306769] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:00,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 17:14:00,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-11-08 17:14:00,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68040156] [2024-11-08 17:14:00,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:00,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 17:14:00,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:00,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 17:14:00,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:14:00,574 INFO L87 Difference]: Start difference. First operand 1416 states and 1888 transitions. Second operand has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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 17:14:00,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:14:00,731 INFO L93 Difference]: Finished difference Result 2794 states and 3736 transitions. [2024-11-08 17:14:00,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-08 17:14:00,732 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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 789 [2024-11-08 17:14:00,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:14:00,737 INFO L225 Difference]: With dead ends: 2794 [2024-11-08 17:14:00,737 INFO L226 Difference]: Without dead ends: 1416 [2024-11-08 17:14:00,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 796 GetRequests, 790 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 17:14:00,740 INFO L432 NwaCegarLoop]: 202 mSDtfsCounter, 13 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 17:14:00,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 481 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 17:14:00,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2024-11-08 17:14:00,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 1416. [2024-11-08 17:14:00,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1416 states, 1401 states have (on average 1.3162027123483226) internal successors, (1844), 1402 states have internal predecessors, (1844), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2024-11-08 17:14:00,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1416 states to 1416 states and 1878 transitions. [2024-11-08 17:14:00,790 INFO L78 Accepts]: Start accepts. Automaton has 1416 states and 1878 transitions. Word has length 789 [2024-11-08 17:14:00,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:14:00,790 INFO L471 AbstractCegarLoop]: Abstraction has 1416 states and 1878 transitions. [2024-11-08 17:14:00,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 49.5) internal successors, (198), 4 states have internal predecessors, (198), 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 17:14:00,791 INFO L276 IsEmpty]: Start isEmpty. Operand 1416 states and 1878 transitions. [2024-11-08 17:14:00,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 792 [2024-11-08 17:14:00,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:14:00,799 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:00,852 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 17:14:00,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 17:14:01,000 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:14:01,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:01,000 INFO L85 PathProgramCache]: Analyzing trace with hash 35933725, now seen corresponding path program 1 times [2024-11-08 17:14:01,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:01,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510340974] [2024-11-08 17:14:01,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:01,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:01,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:03,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-11-08 17:14:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:03,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 17:14:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:03,196 INFO L134 CoverageAnalysis]: Checked inductivity of 3424 backedges. 318 proven. 0 refuted. 0 times theorem prover too weak. 3106 trivial. 0 not checked. [2024-11-08 17:14:03,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:03,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510340974] [2024-11-08 17:14:03,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510340974] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:03,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:03,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 17:14:03,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598733020] [2024-11-08 17:14:03,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:03,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 17:14:03,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:03,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 17:14:03,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:14:03,200 INFO L87 Difference]: Start difference. First operand 1416 states and 1878 transitions. Second operand has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 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 17:14:03,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:14:03,710 INFO L93 Difference]: Finished difference Result 2821 states and 3762 transitions. [2024-11-08 17:14:03,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 17:14:03,711 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 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 791 [2024-11-08 17:14:03,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:14:03,717 INFO L225 Difference]: With dead ends: 2821 [2024-11-08 17:14:03,717 INFO L226 Difference]: Without dead ends: 1446 [2024-11-08 17:14:03,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-08 17:14:03,720 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 7 mSDsluCounter, 664 mSDsCounter, 0 mSdLazyCounter, 365 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 365 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:14:03,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 864 Invalid, 369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 365 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-08 17:14:03,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1446 states. [2024-11-08 17:14:03,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1446 to 1446. [2024-11-08 17:14:03,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1446 states, 1431 states have (on average 1.3095737246680643) internal successors, (1874), 1432 states have internal predecessors, (1874), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2024-11-08 17:14:03,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1446 states to 1446 states and 1908 transitions. [2024-11-08 17:14:03,769 INFO L78 Accepts]: Start accepts. Automaton has 1446 states and 1908 transitions. Word has length 791 [2024-11-08 17:14:03,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:14:03,769 INFO L471 AbstractCegarLoop]: Abstraction has 1446 states and 1908 transitions. [2024-11-08 17:14:03,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.714285714285715) internal successors, (138), 6 states have internal predecessors, (138), 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 17:14:03,770 INFO L276 IsEmpty]: Start isEmpty. Operand 1446 states and 1908 transitions. [2024-11-08 17:14:03,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2024-11-08 17:14:03,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:14:03,778 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:03,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-08 17:14:03,778 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:14:03,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:03,779 INFO L85 PathProgramCache]: Analyzing trace with hash 828239725, now seen corresponding path program 1 times [2024-11-08 17:14:03,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:03,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198375083] [2024-11-08 17:14:03,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:03,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:14:04,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:05,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 17:14:05,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:05,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:14:05,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:14:05,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3425 backedges. 337 proven. 0 refuted. 0 times theorem prover too weak. 3088 trivial. 0 not checked. [2024-11-08 17:14:05,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:14:05,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198375083] [2024-11-08 17:14:05,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198375083] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 17:14:05,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 17:14:05,898 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-08 17:14:05,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430845473] [2024-11-08 17:14:05,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 17:14:05,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 17:14:05,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:14:05,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 17:14:05,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:14:05,902 INFO L87 Difference]: Start difference. First operand 1446 states and 1908 transitions. Second operand has 8 states, 8 states have (on average 17.875) internal successors, (143), 7 states have internal predecessors, (143), 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 17:14:06,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:14:06,696 INFO L93 Difference]: Finished difference Result 2891 states and 3838 transitions. [2024-11-08 17:14:06,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 17:14:06,697 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 17.875) internal successors, (143), 7 states have internal predecessors, (143), 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 793 [2024-11-08 17:14:06,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:14:06,702 INFO L225 Difference]: With dead ends: 2891 [2024-11-08 17:14:06,702 INFO L226 Difference]: Without dead ends: 1496 [2024-11-08 17:14:06,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-08 17:14:06,705 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 11 mSDsluCounter, 780 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 970 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 17:14:06,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 970 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 17:14:06,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1496 states. [2024-11-08 17:14:06,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1496 to 1486. [2024-11-08 17:14:06,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 1471 states have (on average 1.3079537729435757) internal successors, (1924), 1472 states have internal predecessors, (1924), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2024-11-08 17:14:06,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 1958 transitions. [2024-11-08 17:14:06,756 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 1958 transitions. Word has length 793 [2024-11-08 17:14:06,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:14:06,756 INFO L471 AbstractCegarLoop]: Abstraction has 1486 states and 1958 transitions. [2024-11-08 17:14:06,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 17.875) internal successors, (143), 7 states have internal predecessors, (143), 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 17:14:06,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 1958 transitions. [2024-11-08 17:14:06,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 794 [2024-11-08 17:14:06,765 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:14:06,765 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 17:14:06,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-08 17:14:06,766 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:14:06,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:14:06,766 INFO L85 PathProgramCache]: Analyzing trace with hash 819696949, now seen corresponding path program 1 times [2024-11-08 17:14:06,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:14:06,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317537764] [2024-11-08 17:14:06,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:14:06,767 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 17:18:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:18:56,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-08 17:18:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:18:56,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-08 17:18:56,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:18:56,604 INFO L134 CoverageAnalysis]: Checked inductivity of 3425 backedges. 508 proven. 7 refuted. 0 times theorem prover too weak. 2910 trivial. 0 not checked. [2024-11-08 17:18:56,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 17:18:56,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317537764] [2024-11-08 17:18:56,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317537764] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:18:56,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [545808577] [2024-11-08 17:18:56,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:18:56,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 17:18:56,606 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 17:18:56,608 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 17:18:56,610 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 17:19:14,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 17:19:14,455 INFO L255 TraceCheckSpWp]: Trace formula consists of 3920 conjuncts, 41 conjuncts are in the unsatisfiable core [2024-11-08 17:19:14,470 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 17:19:14,830 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 18 treesize of output 7 [2024-11-08 17:19:15,733 INFO L134 CoverageAnalysis]: Checked inductivity of 3425 backedges. 1685 proven. 326 refuted. 0 times theorem prover too weak. 1414 trivial. 0 not checked. [2024-11-08 17:19:15,733 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 17:19:24,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [545808577] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 17:19:24,273 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-08 17:19:24,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 15] total 19 [2024-11-08 17:19:24,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673061088] [2024-11-08 17:19:24,273 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-08 17:19:24,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 17:19:24,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 17:19:24,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 17:19:24,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=805, Unknown=0, NotChecked=0, Total=930 [2024-11-08 17:19:24,277 INFO L87 Difference]: Start difference. First operand 1486 states and 1958 transitions. Second operand has 19 states, 19 states have (on average 23.05263157894737) internal successors, (438), 18 states have internal predecessors, (438), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 17:19:29,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 17:19:29,256 INFO L93 Difference]: Finished difference Result 2880 states and 3809 transitions. [2024-11-08 17:19:29,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 17:19:29,257 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 23.05263157894737) internal successors, (438), 18 states have internal predecessors, (438), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 793 [2024-11-08 17:19:29,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 17:19:29,263 INFO L225 Difference]: With dead ends: 2880 [2024-11-08 17:19:29,263 INFO L226 Difference]: Without dead ends: 1489 [2024-11-08 17:19:29,266 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1527 GetRequests, 1489 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=267, Invalid=1293, Unknown=0, NotChecked=0, Total=1560 [2024-11-08 17:19:29,267 INFO L432 NwaCegarLoop]: 707 mSDtfsCounter, 770 mSDsluCounter, 7024 mSDsCounter, 0 mSdLazyCounter, 2832 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 782 SdHoareTripleChecker+Valid, 7731 SdHoareTripleChecker+Invalid, 2844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 2832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-08 17:19:29,267 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [782 Valid, 7731 Invalid, 2844 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 2832 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-08 17:19:29,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2024-11-08 17:19:29,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1487. [2024-11-08 17:19:29,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1472 states have (on average 1.3077445652173914) internal successors, (1925), 1473 states have internal predecessors, (1925), 12 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (22), 12 states have call predecessors, (22), 12 states have call successors, (22) [2024-11-08 17:19:29,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1959 transitions. [2024-11-08 17:19:29,321 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1959 transitions. Word has length 793 [2024-11-08 17:19:29,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 17:19:29,321 INFO L471 AbstractCegarLoop]: Abstraction has 1487 states and 1959 transitions. [2024-11-08 17:19:29,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 23.05263157894737) internal successors, (438), 18 states have internal predecessors, (438), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 17:19:29,322 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1959 transitions. [2024-11-08 17:19:29,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 799 [2024-11-08 17:19:29,331 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 17:19:29,331 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 7, 4, 3, 3, 3, 3, 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] [2024-11-08 17:19:29,391 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 17:19:29,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2ceb3b3f-5ce0-46c3-a4d7-e71fdef6c708/bin/uautomizer-verify-jihMAELWvX/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 17:19:29,532 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 17:19:29,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 17:19:29,533 INFO L85 PathProgramCache]: Analyzing trace with hash 95849585, now seen corresponding path program 2 times [2024-11-08 17:19:29,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 17:19:29,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015947135] [2024-11-08 17:19:29,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 17:19:29,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms