./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/memsafety/test-0214.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b 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_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/memsafety/test-0214.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3f6f146d76d903376288fe056dbbc9e1a8443f92d5e8b82343734efc8a9842e4 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 21:55:00,896 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 21:55:00,982 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 21:55:00,988 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 21:55:00,989 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 21:55:01,018 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 21:55:01,019 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 21:55:01,020 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 21:55:01,021 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 21:55:01,022 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 21:55:01,023 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 21:55:01,023 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 21:55:01,024 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 21:55:01,025 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 21:55:01,025 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 21:55:01,026 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 21:55:01,027 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 21:55:01,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 21:55:01,028 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 21:55:01,029 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 21:55:01,029 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 21:55:01,030 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 21:55:01,031 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 21:55:01,032 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 21:55:01,032 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 21:55:01,033 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 21:55:01,034 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 21:55:01,034 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 21:55:01,035 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 21:55:01,035 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 21:55:01,036 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 21:55:01,037 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 21:55:01,037 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 21:55:01,038 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 21:55:01,038 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 21:55:01,039 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 21:55:01,040 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f6f146d76d903376288fe056dbbc9e1a8443f92d5e8b82343734efc8a9842e4 [2023-11-06 21:55:01,353 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 21:55:01,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 21:55:01,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 21:55:01,389 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 21:55:01,391 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 21:55:01,392 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/memsafety/test-0214.i [2023-11-06 21:55:04,706 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 21:55:05,119 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 21:55:05,120 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/sv-benchmarks/c/memsafety/test-0214.i [2023-11-06 21:55:05,141 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/data/8c6069f21/29591cb9f3584d9d9e0db2b55f1ca833/FLAGbafcbe8b2 [2023-11-06 21:55:05,165 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/data/8c6069f21/29591cb9f3584d9d9e0db2b55f1ca833 [2023-11-06 21:55:05,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 21:55:05,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 21:55:05,171 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 21:55:05,172 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 21:55:05,177 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 21:55:05,178 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:05,179 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48b9c6b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05, skipping insertion in model container [2023-11-06 21:55:05,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:05,242 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 21:55:05,757 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:55:05,777 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 21:55:05,849 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 21:55:05,905 INFO L206 MainTranslator]: Completed translation [2023-11-06 21:55:05,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05 WrapperNode [2023-11-06 21:55:05,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 21:55:05,907 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 21:55:05,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 21:55:05,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 21:55:05,915 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:05,935 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:05,973 INFO L138 Inliner]: procedures = 181, calls = 42, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 169 [2023-11-06 21:55:05,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 21:55:05,974 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 21:55:05,974 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 21:55:05,974 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 21:55:05,987 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:05,987 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:05,993 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:05,994 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:06,007 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:06,013 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:06,017 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:06,019 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:06,025 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 21:55:06,026 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 21:55:06,026 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 21:55:06,026 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 21:55:06,027 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (1/1) ... [2023-11-06 21:55:06,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 21:55:06,069 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 21:55:06,086 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 21:55:06,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 21:55:06,133 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-06 21:55:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-06 21:55:06,134 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-06 21:55:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-06 21:55:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 21:55:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-06 21:55:06,134 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-06 21:55:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-06 21:55:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-06 21:55:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 21:55:06,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 21:55:06,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 21:55:06,279 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 21:55:06,281 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 21:55:06,285 WARN L818 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-06 21:55:06,701 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 21:55:06,712 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 21:55:06,712 INFO L302 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-06 21:55:06,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:06 BoogieIcfgContainer [2023-11-06 21:55:06,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 21:55:06,720 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 21:55:06,721 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 21:55:06,725 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 21:55:06,726 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:55:06,726 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 09:55:05" (1/3) ... [2023-11-06 21:55:06,727 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a83997c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 09:55:06, skipping insertion in model container [2023-11-06 21:55:06,728 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:55:06,728 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:55:05" (2/3) ... [2023-11-06 21:55:06,728 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6a83997c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 09:55:06, skipping insertion in model container [2023-11-06 21:55:06,728 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 21:55:06,728 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:06" (3/3) ... [2023-11-06 21:55:06,731 INFO L332 chiAutomizerObserver]: Analyzing ICFG test-0214.i [2023-11-06 21:55:06,822 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 21:55:06,822 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 21:55:06,823 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 21:55:06,823 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 21:55:06,823 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 21:55:06,823 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 21:55:06,823 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 21:55:06,824 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 21:55:06,830 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 42 states have (on average 1.5) internal successors, (63), 42 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:55:06,865 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2023-11-06 21:55:06,865 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:55:06,865 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:55:06,872 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 21:55:06,872 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 21:55:06,873 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 21:55:06,873 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 45 states, 42 states have (on average 1.5) internal successors, (63), 42 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:55:06,878 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2023-11-06 21:55:06,878 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:55:06,878 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:55:06,878 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 21:55:06,879 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2023-11-06 21:55:06,888 INFO L748 eck$LassoCheckResult]: Stem: 38#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);~#list~0.base, ~#list~0.offset := 3, 0;call #Ultimate.allocInit(8, 3);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 4#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_#t~nondet20#1, main_#t~ret23#1, main_#t~nondet22#1, main_#t~nondet19#1, main_#t~nondet24#1, main_#t~mem25#1.base, main_#t~mem25#1.offset, main_#t~mem26#1.base, main_#t~mem26#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~0#1.base, main_~cursor~0#1.offset; 40#L728-3true [2023-11-06 21:55:06,888 INFO L750 eck$LassoCheckResult]: Loop: 40#L728-3true havoc main_#t~nondet19#1; 6#L725-1true assume !!(0 != main_#t~nondet19#1);havoc main_#t~nondet19#1; 15#L726-3true assume !true; 20#L728-2true assume !true; 40#L728-3true [2023-11-06 21:55:06,895 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:06,895 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 1 times [2023-11-06 21:55:06,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:06,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844841038] [2023-11-06 21:55:06,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:06,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:07,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:55:07,006 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:55:07,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:55:07,038 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:55:07,041 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:07,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1423024, now seen corresponding path program 1 times [2023-11-06 21:55:07,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:07,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965499427] [2023-11-06 21:55:07,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:07,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:07,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 21:55:07,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-06 21:55:07,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 21:55:07,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965499427] [2023-11-06 21:55:07,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965499427] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 21:55:07,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 21:55:07,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 21:55:07,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945685902] [2023-11-06 21:55:07,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 21:55:07,096 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 21:55:07,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 21:55:07,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-06 21:55:07,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-06 21:55:07,138 INFO L87 Difference]: Start difference. First operand has 45 states, 42 states have (on average 1.5) internal successors, (63), 42 states have internal predecessors, (63), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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) [2023-11-06 21:55:07,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 21:55:07,151 INFO L93 Difference]: Finished difference Result 45 states and 60 transitions. [2023-11-06 21:55:07,152 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 45 states and 60 transitions. [2023-11-06 21:55:07,155 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2023-11-06 21:55:07,160 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 45 states to 41 states and 56 transitions. [2023-11-06 21:55:07,161 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 41 [2023-11-06 21:55:07,162 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 41 [2023-11-06 21:55:07,163 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 56 transitions. [2023-11-06 21:55:07,163 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 21:55:07,163 INFO L218 hiAutomatonCegarLoop]: Abstraction has 41 states and 56 transitions. [2023-11-06 21:55:07,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states and 56 transitions. [2023-11-06 21:55:07,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2023-11-06 21:55:07,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.3846153846153846) internal successors, (54), 38 states have internal predecessors, (54), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-06 21:55:07,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 56 transitions. [2023-11-06 21:55:07,199 INFO L240 hiAutomatonCegarLoop]: Abstraction has 41 states and 56 transitions. [2023-11-06 21:55:07,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-06 21:55:07,204 INFO L428 stractBuchiCegarLoop]: Abstraction has 41 states and 56 transitions. [2023-11-06 21:55:07,204 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 21:55:07,205 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 41 states and 56 transitions. [2023-11-06 21:55:07,206 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 32 [2023-11-06 21:55:07,207 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 21:55:07,207 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 21:55:07,207 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 21:55:07,207 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2023-11-06 21:55:07,208 INFO L748 eck$LassoCheckResult]: Stem: 137#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(12, 2);~#list~0.base, ~#list~0.offset := 3, 0;call #Ultimate.allocInit(8, 3);call write~init~$Pointer$(0, 0, ~#list~0.base, ~#list~0.offset, 4);call write~init~$Pointer$(0, 0, ~#list~0.base, 4 + ~#list~0.offset, 4); 100#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret21#1, main_#t~nondet20#1, main_#t~ret23#1, main_#t~nondet22#1, main_#t~nondet19#1, main_#t~nondet24#1, main_#t~mem25#1.base, main_#t~mem25#1.offset, main_#t~mem26#1.base, main_#t~mem26#1.offset, main_~next~1#1.base, main_~next~1#1.offset, main_~end_point~0#1, main_~direction~0#1, main_~cursor~0#1.base, main_~cursor~0#1.offset; 101#L728-3 [2023-11-06 21:55:07,208 INFO L750 eck$LassoCheckResult]: Loop: 101#L728-3 havoc main_#t~nondet19#1; 104#L725-1 assume !!(0 != main_#t~nondet19#1);havoc main_#t~nondet19#1; 106#L726-3 havoc main_#t~nondet20#1; 121#L726-1 assume !(0 != main_#t~nondet20#1);havoc main_#t~nondet20#1; 123#L728-2 havoc main_#t~nondet22#1; 126#L728 assume !(0 != main_#t~nondet22#1);havoc main_#t~nondet22#1; 101#L728-3 [2023-11-06 21:55:07,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:07,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1251, now seen corresponding path program 2 times [2023-11-06 21:55:07,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:07,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557485372] [2023-11-06 21:55:07,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:07,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:07,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:55:07,232 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:55:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:55:07,261 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:55:07,264 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:07,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1365769260, now seen corresponding path program 1 times [2023-11-06 21:55:07,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:07,270 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559000243] [2023-11-06 21:55:07,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:07,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:07,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:55:07,281 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:55:07,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:55:07,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:55:07,288 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 21:55:07,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1651159154, now seen corresponding path program 1 times [2023-11-06 21:55:07,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 21:55:07,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30833167] [2023-11-06 21:55:07,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 21:55:07,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 21:55:07,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:55:07,335 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:55:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:55:07,349 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 21:55:07,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:55:07,624 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 21:55:07,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 21:55:07,665 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 09:55:07 BoogieIcfgContainer [2023-11-06 21:55:07,665 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 21:55:07,666 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 21:55:07,666 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 21:55:07,667 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 21:55:07,667 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:55:06" (3/4) ... [2023-11-06 21:55:07,669 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 21:55:07,717 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 21:55:07,717 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 21:55:07,718 INFO L158 Benchmark]: Toolchain (without parser) took 2548.04ms. Allocated memory is still 159.4MB. Free memory was 128.6MB in the beginning and 81.5MB in the end (delta: 47.1MB). Peak memory consumption was 45.8MB. Max. memory is 16.1GB. [2023-11-06 21:55:07,718 INFO L158 Benchmark]: CDTParser took 0.67ms. Allocated memory is still 113.2MB. Free memory is still 60.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 21:55:07,719 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.16ms. Allocated memory is still 159.4MB. Free memory was 128.2MB in the beginning and 107.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2023-11-06 21:55:07,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.06ms. Allocated memory is still 159.4MB. Free memory was 107.3MB in the beginning and 104.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:55:07,720 INFO L158 Benchmark]: Boogie Preprocessor took 50.81ms. Allocated memory is still 159.4MB. Free memory was 104.7MB in the beginning and 102.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:55:07,721 INFO L158 Benchmark]: RCFGBuilder took 689.22ms. Allocated memory is still 159.4MB. Free memory was 102.4MB in the beginning and 129.6MB in the end (delta: -27.1MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. [2023-11-06 21:55:07,721 INFO L158 Benchmark]: BuchiAutomizer took 945.04ms. Allocated memory is still 159.4MB. Free memory was 129.6MB in the beginning and 83.5MB in the end (delta: 46.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-11-06 21:55:07,722 INFO L158 Benchmark]: Witness Printer took 50.90ms. Allocated memory is still 159.4MB. Free memory was 83.5MB in the beginning and 81.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 21:55:07,725 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.67ms. Allocated memory is still 113.2MB. Free memory is still 60.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 735.16ms. Allocated memory is still 159.4MB. Free memory was 128.2MB in the beginning and 107.3MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.06ms. Allocated memory is still 159.4MB. Free memory was 107.3MB in the beginning and 104.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.81ms. Allocated memory is still 159.4MB. Free memory was 104.7MB in the beginning and 102.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 689.22ms. Allocated memory is still 159.4MB. Free memory was 102.4MB in the beginning and 129.6MB in the end (delta: -27.1MB). Peak memory consumption was 26.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 945.04ms. Allocated memory is still 159.4MB. Free memory was 129.6MB in the beginning and 83.5MB in the end (delta: 46.1MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 50.90ms. Allocated memory is still 159.4MB. Free memory was 83.5MB in the beginning and 81.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 2 locations. The remainder module has 41 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 60 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 60 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 725]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L724] static list_t list; VAL [list={3:0}] Loop: [L725] COND TRUE __VERIFIER_nondet_int() [L726] COND FALSE !(__VERIFIER_nondet_int()) [L728] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 725]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L724] static list_t list; VAL [list={3:0}] Loop: [L725] COND TRUE __VERIFIER_nondet_int() [L726] COND FALSE !(__VERIFIER_nondet_int()) [L728] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 21:55:07,756 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4c8cf179-14d2-4b4d-8ae4-c0849add2668/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)