./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label38.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a0165632 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/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_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label38.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/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_c85781c2-bd4d-4304-8b1b-df3b48fb318d/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 a670cdf39cff768f377fda4aa36462d7d9bf374db1f5d06db7ce4e528593b74a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-a016563 [2024-11-08 18:01:23,178 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 18:01:23,300 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 18:01:23,310 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 18:01:23,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 18:01:23,355 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 18:01:23,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 18:01:23,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 18:01:23,358 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 18:01:23,358 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 18:01:23,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 18:01:23,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 18:01:23,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 18:01:23,367 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 18:01:23,368 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 18:01:23,368 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 18:01:23,369 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 18:01:23,369 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 18:01:23,370 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 18:01:23,370 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 18:01:23,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 18:01:23,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 18:01:23,372 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 18:01:23,374 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 18:01:23,375 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 18:01:23,375 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 18:01:23,376 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 18:01:23,376 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 18:01:23,377 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 18:01:23,377 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 18:01:23,378 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 18:01:23,378 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 18:01:23,378 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:01:23,379 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 18:01:23,379 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 18:01:23,380 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 18:01:23,380 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 18:01:23,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 18:01:23,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 18:01:23,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 18:01:23,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 18:01:23,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 18:01:23,385 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_c85781c2-bd4d-4304-8b1b-df3b48fb318d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a670cdf39cff768f377fda4aa36462d7d9bf374db1f5d06db7ce4e528593b74a [2024-11-08 18:01:23,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 18:01:23,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 18:01:23,774 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 18:01:23,775 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 18:01:23,776 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 18:01:23,777 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/../../sv-benchmarks/c/eca-rers2012/Problem02_label38.c Unable to find full path for "g++" [2024-11-08 18:01:26,198 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 18:01:26,548 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 18:01:26,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/sv-benchmarks/c/eca-rers2012/Problem02_label38.c [2024-11-08 18:01:26,565 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/data/e38807581/e599926a780b434c9c16aaf659dba913/FLAG9226df19d [2024-11-08 18:01:26,583 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/data/e38807581/e599926a780b434c9c16aaf659dba913 [2024-11-08 18:01:26,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 18:01:26,588 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 18:01:26,590 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 18:01:26,590 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 18:01:26,605 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 18:01:26,606 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:01:26" (1/1) ... [2024-11-08 18:01:26,611 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3600a628 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:26, skipping insertion in model container [2024-11-08 18:01:26,611 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 06:01:26" (1/1) ... [2024-11-08 18:01:26,674 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 18:01:27,117 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_c85781c2-bd4d-4304-8b1b-df3b48fb318d/sv-benchmarks/c/eca-rers2012/Problem02_label38.c[20309,20322] [2024-11-08 18:01:27,148 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:01:27,162 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 18:01:27,337 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_c85781c2-bd4d-4304-8b1b-df3b48fb318d/sv-benchmarks/c/eca-rers2012/Problem02_label38.c[20309,20322] [2024-11-08 18:01:27,347 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 18:01:27,371 INFO L204 MainTranslator]: Completed translation [2024-11-08 18:01:27,372 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27 WrapperNode [2024-11-08 18:01:27,372 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 18:01:27,374 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 18:01:27,374 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 18:01:27,374 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 18:01:27,384 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,406 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,510 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2024-11-08 18:01:27,510 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 18:01:27,511 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 18:01:27,512 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 18:01:27,512 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 18:01:27,534 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,534 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,540 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,563 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 18:01:27,564 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,564 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,592 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,609 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,629 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,644 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 18:01:27,648 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 18:01:27,649 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 18:01:27,649 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 18:01:27,653 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (1/1) ... [2024-11-08 18:01:27,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 18:01:27,681 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/z3 [2024-11-08 18:01:27,699 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 18:01:27,707 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 18:01:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 18:01:27,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 18:01:27,751 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 18:01:27,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 18:01:27,852 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 18:01:27,855 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 18:01:29,289 INFO L? ?]: Removed 84 outVars from TransFormulas that were not future-live. [2024-11-08 18:01:29,291 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 18:01:29,314 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 18:01:29,314 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-08 18:01:29,315 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:01:29 BoogieIcfgContainer [2024-11-08 18:01:29,315 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 18:01:29,318 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 18:01:29,318 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 18:01:29,322 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 18:01:29,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 06:01:26" (1/3) ... [2024-11-08 18:01:29,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9ce777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:01:29, skipping insertion in model container [2024-11-08 18:01:29,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 06:01:27" (2/3) ... [2024-11-08 18:01:29,325 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f9ce777 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 06:01:29, skipping insertion in model container [2024-11-08 18:01:29,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:01:29" (3/3) ... [2024-11-08 18:01:29,327 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label38.c [2024-11-08 18:01:29,350 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 18:01:29,350 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 18:01:29,442 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 18:01:29,450 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;@1a38cc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 18:01:29,451 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 18:01:29,457 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:29,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-08 18:01:29,483 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:29,484 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:01:29,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:01:29,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:29,494 INFO L85 PathProgramCache]: Analyzing trace with hash -844092366, now seen corresponding path program 1 times [2024-11-08 18:01:29,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:29,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704663097] [2024-11-08 18:01:29,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:29,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:30,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:01:30,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:30,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704663097] [2024-11-08 18:01:30,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704663097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:01:30,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:01:30,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:01:30,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284713425] [2024-11-08 18:01:30,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:01:30,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:01:30,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:30,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:01:30,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:01:30,406 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:31,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:31,633 INFO L93 Difference]: Finished difference Result 600 states and 1037 transitions. [2024-11-08 18:01:31,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:01:31,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 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 131 [2024-11-08 18:01:31,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:31,663 INFO L225 Difference]: With dead ends: 600 [2024-11-08 18:01:31,663 INFO L226 Difference]: Without dead ends: 309 [2024-11-08 18:01:31,667 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:01:31,672 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 35 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 564 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-08 18:01:31,673 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 171 Invalid, 564 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-08 18:01:31,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2024-11-08 18:01:31,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 307. [2024-11-08 18:01:31,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 1.3300653594771241) internal successors, (407), 306 states have internal predecessors, (407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:31,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 407 transitions. [2024-11-08 18:01:31,739 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 407 transitions. Word has length 131 [2024-11-08 18:01:31,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:31,740 INFO L471 AbstractCegarLoop]: Abstraction has 307 states and 407 transitions. [2024-11-08 18:01:31,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:31,741 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 407 transitions. [2024-11-08 18:01:31,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-08 18:01:31,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:31,745 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:01:31,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 18:01:31,746 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:01:31,747 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:31,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1125321496, now seen corresponding path program 1 times [2024-11-08 18:01:31,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:31,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189258334] [2024-11-08 18:01:31,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:31,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:32,267 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:01:32,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:32,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189258334] [2024-11-08 18:01:32,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189258334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:01:32,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:01:32,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 18:01:32,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137021594] [2024-11-08 18:01:32,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:01:32,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:01:32,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:32,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:01:32,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:01:32,281 INFO L87 Difference]: Start difference. First operand 307 states and 407 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:33,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:33,141 INFO L93 Difference]: Finished difference Result 756 states and 1034 transitions. [2024-11-08 18:01:33,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:01:33,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 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 136 [2024-11-08 18:01:33,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:33,147 INFO L225 Difference]: With dead ends: 756 [2024-11-08 18:01:33,147 INFO L226 Difference]: Without dead ends: 451 [2024-11-08 18:01:33,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:01:33,151 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 55 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 474 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 18:01:33,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 54 Invalid, 474 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 18:01:33,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2024-11-08 18:01:33,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 449. [2024-11-08 18:01:33,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 449 states, 448 states have (on average 1.3705357142857142) internal successors, (614), 448 states have internal predecessors, (614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:33,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 449 states to 449 states and 614 transitions. [2024-11-08 18:01:33,180 INFO L78 Accepts]: Start accepts. Automaton has 449 states and 614 transitions. Word has length 136 [2024-11-08 18:01:33,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:33,187 INFO L471 AbstractCegarLoop]: Abstraction has 449 states and 614 transitions. [2024-11-08 18:01:33,188 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:33,188 INFO L276 IsEmpty]: Start isEmpty. Operand 449 states and 614 transitions. [2024-11-08 18:01:33,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-08 18:01:33,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:33,198 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:01:33,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 18:01:33,199 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:01:33,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:33,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1574029454, now seen corresponding path program 1 times [2024-11-08 18:01:33,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:33,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497573428] [2024-11-08 18:01:33,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:33,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:33,508 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-08 18:01:33,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:33,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497573428] [2024-11-08 18:01:33,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497573428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:01:33,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:01:33,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:01:33,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732822863] [2024-11-08 18:01:33,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:01:33,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:01:33,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:33,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:01:33,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:01:33,534 INFO L87 Difference]: Start difference. First operand 449 states and 614 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:34,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:34,158 INFO L93 Difference]: Finished difference Result 1320 states and 1806 transitions. [2024-11-08 18:01:34,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:01:34,159 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 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 140 [2024-11-08 18:01:34,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:34,165 INFO L225 Difference]: With dead ends: 1320 [2024-11-08 18:01:34,166 INFO L226 Difference]: Without dead ends: 873 [2024-11-08 18:01:34,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:01:34,172 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 67 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 82 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-08 18:01:34,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 82 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-08 18:01:34,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 873 states. [2024-11-08 18:01:34,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 873 to 873. [2024-11-08 18:01:34,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 873 states, 872 states have (on average 1.3038990825688073) internal successors, (1137), 872 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:34,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 873 states to 873 states and 1137 transitions. [2024-11-08 18:01:34,229 INFO L78 Accepts]: Start accepts. Automaton has 873 states and 1137 transitions. Word has length 140 [2024-11-08 18:01:34,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:34,232 INFO L471 AbstractCegarLoop]: Abstraction has 873 states and 1137 transitions. [2024-11-08 18:01:34,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 2 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:34,233 INFO L276 IsEmpty]: Start isEmpty. Operand 873 states and 1137 transitions. [2024-11-08 18:01:34,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2024-11-08 18:01:34,238 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 18:01:34,238 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 18:01:34,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 18:01:34,239 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 18:01:34,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 18:01:34,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1190479602, now seen corresponding path program 1 times [2024-11-08 18:01:34,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 18:01:34,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146713966] [2024-11-08 18:01:34,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 18:01:34,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 18:01:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 18:01:34,503 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 18:01:34,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 18:01:34,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146713966] [2024-11-08 18:01:34,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146713966] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 18:01:34,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 18:01:34,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 18:01:34,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290310676] [2024-11-08 18:01:34,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 18:01:34,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 18:01:34,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 18:01:34,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 18:01:34,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:01:34,513 INFO L87 Difference]: Start difference. First operand 873 states and 1137 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:34,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 18:01:34,844 INFO L93 Difference]: Finished difference Result 1591 states and 2041 transitions. [2024-11-08 18:01:34,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 18:01:34,845 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 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 150 [2024-11-08 18:01:34,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 18:01:34,845 INFO L225 Difference]: With dead ends: 1591 [2024-11-08 18:01:34,845 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 18:01:34,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 18:01:34,848 INFO L432 NwaCegarLoop]: 22 mSDtfsCounter, 193 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-08 18:01:34,849 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 22 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-08 18:01:34,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 18:01:34,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 18:01:34,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:34,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 18:01:34,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2024-11-08 18:01:34,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 18:01:34,851 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 18:01:34,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 2 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 18:01:34,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 18:01:34,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 18:01:34,858 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 18:01:34,861 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 18:01:34,867 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-08 18:01:34,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 18:01:34,944 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 18:01:34,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 06:01:34 BoogieIcfgContainer [2024-11-08 18:01:34,971 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 18:01:34,975 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 18:01:34,975 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 18:01:34,976 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 18:01:34,976 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 06:01:29" (3/4) ... [2024-11-08 18:01:34,980 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 18:01:35,009 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-08 18:01:35,010 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-08 18:01:35,013 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-08 18:01:35,015 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 18:01:35,253 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/witness.graphml [2024-11-08 18:01:35,254 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/witness.yml [2024-11-08 18:01:35,257 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 18:01:35,258 INFO L158 Benchmark]: Toolchain (without parser) took 8669.46ms. Allocated memory was 140.5MB in the beginning and 232.8MB in the end (delta: 92.3MB). Free memory was 100.8MB in the beginning and 74.6MB in the end (delta: 26.2MB). Peak memory consumption was 120.6MB. Max. memory is 16.1GB. [2024-11-08 18:01:35,258 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 18:01:35,258 INFO L158 Benchmark]: CACSL2BoogieTranslator took 782.90ms. Allocated memory is still 140.5MB. Free memory was 100.5MB in the beginning and 71.8MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2024-11-08 18:01:35,259 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.07ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 71.8MB in the beginning and 159.5MB in the end (delta: -87.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. [2024-11-08 18:01:35,259 INFO L158 Benchmark]: Boogie Preprocessor took 135.99ms. Allocated memory is still 192.9MB. Free memory was 159.5MB in the beginning and 154.3MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 18:01:35,260 INFO L158 Benchmark]: RCFGBuilder took 1666.60ms. Allocated memory is still 192.9MB. Free memory was 154.3MB in the beginning and 130.8MB in the end (delta: 23.5MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. [2024-11-08 18:01:35,260 INFO L158 Benchmark]: TraceAbstraction took 5652.94ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 129.8MB in the beginning and 87.1MB in the end (delta: 42.7MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. [2024-11-08 18:01:35,260 INFO L158 Benchmark]: Witness Printer took 281.98ms. Allocated memory is still 232.8MB. Free memory was 87.1MB in the beginning and 74.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-08 18:01:35,264 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 140.5MB. Free memory is still 82.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 782.90ms. Allocated memory is still 140.5MB. Free memory was 100.5MB in the beginning and 71.8MB in the end (delta: 28.7MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.07ms. Allocated memory was 140.5MB in the beginning and 192.9MB in the end (delta: 52.4MB). Free memory was 71.8MB in the beginning and 159.5MB in the end (delta: -87.7MB). Peak memory consumption was 10.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 135.99ms. Allocated memory is still 192.9MB. Free memory was 159.5MB in the beginning and 154.3MB in the end (delta: 5.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1666.60ms. Allocated memory is still 192.9MB. Free memory was 154.3MB in the beginning and 130.8MB in the end (delta: 23.5MB). Peak memory consumption was 58.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5652.94ms. Allocated memory was 192.9MB in the beginning and 232.8MB in the end (delta: 39.8MB). Free memory was 129.8MB in the beginning and 87.1MB in the end (delta: 42.7MB). Peak memory consumption was 82.4MB. Max. memory is 16.1GB. * Witness Printer took 281.98ms. Allocated memory is still 232.8MB. Free memory was 87.1MB in the beginning and 74.6MB in the end (delta: 12.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 575]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.5s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 350 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 350 mSDsluCounter, 329 SdHoareTripleChecker+Invalid, 2.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 46 mSDsCounter, 373 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1319 IncrementalHoareTripleChecker+Invalid, 1692 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 373 mSolverCounterUnsat, 283 mSDtfsCounter, 1319 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=873occurred in iteration=3, InterpolantAutomatonStates: 12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 557 NumberOfCodeBlocks, 557 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 553 ConstructedInterpolants, 0 QuantifiedInterpolants, 1383 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 30/30 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((a17 <= 8) && (a19 == 1)) || ((a17 <= 8) && (a28 <= 10))) RESULT: Ultimate proved your program to be correct! [2024-11-08 18:01:35,311 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c85781c2-bd4d-4304-8b1b-df3b48fb318d/bin/uautomizer-verify-jihMAELWvX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE