./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/locks/test_locks_5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e7bb482b 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_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/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_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/locks/test_locks_5.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/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_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/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 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e7bb482 [2023-11-06 22:10:40,392 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-06 22:10:40,514 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP/config/svcomp-Termination-32bit-Automizer_Default.epf [2023-11-06 22:10:40,520 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-06 22:10:40,521 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-06 22:10:40,563 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-06 22:10:40,563 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-06 22:10:40,564 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-06 22:10:40,565 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-06 22:10:40,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-06 22:10:40,573 INFO L153 SettingsManager]: * Use SBE=true [2023-11-06 22:10:40,574 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2023-11-06 22:10:40,574 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2023-11-06 22:10:40,576 INFO L153 SettingsManager]: * Use old map elimination=false [2023-11-06 22:10:40,576 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2023-11-06 22:10:40,577 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2023-11-06 22:10:40,577 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2023-11-06 22:10:40,578 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-06 22:10:40,579 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2023-11-06 22:10:40,579 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-06 22:10:40,579 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-06 22:10:40,580 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-06 22:10:40,580 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-06 22:10:40,581 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2023-11-06 22:10:40,581 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2023-11-06 22:10:40,582 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2023-11-06 22:10:40,582 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-06 22:10:40,583 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-06 22:10:40,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-06 22:10:40,584 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2023-11-06 22:10:40,585 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-06 22:10:40,585 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-06 22:10:40,586 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-06 22:10:40,586 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-06 22:10:40,586 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-06 22:10:40,587 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2023-11-06 22:10:40,587 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_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f68d39859f114df07f2619f37e3285dcdf00194e62a42552d2c67e537c13685 [2023-11-06 22:10:40,851 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-06 22:10:40,884 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-06 22:10:40,889 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-06 22:10:40,890 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-06 22:10:40,891 INFO L274 PluginConnector]: CDTParser initialized [2023-11-06 22:10:40,905 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP/../../sv-benchmarks/c/locks/test_locks_5.c [2023-11-06 22:10:44,567 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-06 22:10:44,843 INFO L384 CDTParser]: Found 1 translation units. [2023-11-06 22:10:44,844 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/sv-benchmarks/c/locks/test_locks_5.c [2023-11-06 22:10:44,853 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP/data/623614aa5/c5562a9c9cb74752a1f9b35f4841fc38/FLAG103ad2b01 [2023-11-06 22:10:44,867 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP/data/623614aa5/c5562a9c9cb74752a1f9b35f4841fc38 [2023-11-06 22:10:44,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-06 22:10:44,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-06 22:10:44,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-06 22:10:44,872 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-06 22:10:44,878 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-06 22:10:44,879 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:10:44" (1/1) ... [2023-11-06 22:10:44,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@742fea5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:44, skipping insertion in model container [2023-11-06 22:10:44,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:10:44" (1/1) ... [2023-11-06 22:10:44,904 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-06 22:10:45,062 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:10:45,075 INFO L202 MainTranslator]: Completed pre-run [2023-11-06 22:10:45,097 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-06 22:10:45,113 INFO L206 MainTranslator]: Completed translation [2023-11-06 22:10:45,113 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45 WrapperNode [2023-11-06 22:10:45,114 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-06 22:10:45,115 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-06 22:10:45,115 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-06 22:10:45,115 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-06 22:10:45,123 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (1/1) ... [2023-11-06 22:10:45,131 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (1/1) ... [2023-11-06 22:10:45,152 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 83 [2023-11-06 22:10:45,152 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-06 22:10:45,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-06 22:10:45,153 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-06 22:10:45,153 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-06 22:10:45,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (1/1) ... [2023-11-06 22:10:45,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (1/1) ... [2023-11-06 22:10:45,163 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (1/1) ... [2023-11-06 22:10:45,164 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (1/1) ... [2023-11-06 22:10:45,167 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (1/1) ... [2023-11-06 22:10:45,171 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (1/1) ... [2023-11-06 22:10:45,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (1/1) ... [2023-11-06 22:10:45,174 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (1/1) ... [2023-11-06 22:10:45,176 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-06 22:10:45,177 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-06 22:10:45,177 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-06 22:10:45,177 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-06 22:10:45,178 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (1/1) ... [2023-11-06 22:10:45,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2023-11-06 22:10:45,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP/z3 [2023-11-06 22:10:45,229 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2023-11-06 22:10:45,242 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2023-11-06 22:10:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-06 22:10:45,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-06 22:10:45,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-06 22:10:45,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-06 22:10:45,369 INFO L236 CfgBuilder]: Building ICFG [2023-11-06 22:10:45,372 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-06 22:10:45,603 INFO L277 CfgBuilder]: Performing block encoding [2023-11-06 22:10:45,609 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-06 22:10:45,610 INFO L302 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-06 22:10:45,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:10:45 BoogieIcfgContainer [2023-11-06 22:10:45,612 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-06 22:10:45,613 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2023-11-06 22:10:45,613 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2023-11-06 22:10:45,617 INFO L274 PluginConnector]: BuchiAutomizer initialized [2023-11-06 22:10:45,618 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:10:45,618 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 06.11 10:10:44" (1/3) ... [2023-11-06 22:10:45,619 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b8a3e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:10:45, skipping insertion in model container [2023-11-06 22:10:45,619 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:10:45,619 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:10:45" (2/3) ... [2023-11-06 22:10:45,620 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b8a3e64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 06.11 10:10:45, skipping insertion in model container [2023-11-06 22:10:45,620 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2023-11-06 22:10:45,620 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:10:45" (3/3) ... [2023-11-06 22:10:45,621 INFO L332 chiAutomizerObserver]: Analyzing ICFG test_locks_5.c [2023-11-06 22:10:45,696 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2023-11-06 22:10:45,696 INFO L304 stractBuchiCegarLoop]: Hoare is false [2023-11-06 22:10:45,696 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2023-11-06 22:10:45,697 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2023-11-06 22:10:45,697 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2023-11-06 22:10:45,697 INFO L308 stractBuchiCegarLoop]: Difference is false [2023-11-06 22:10:45,698 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2023-11-06 22:10:45,698 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2023-11-06 22:10:45,704 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 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 22:10:45,728 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2023-11-06 22:10:45,728 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:10:45,729 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:10:45,735 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:10:45,736 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:10:45,736 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2023-11-06 22:10:45,737 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 25 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 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 22:10:45,744 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 17 [2023-11-06 22:10:45,744 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:10:45,745 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:10:45,745 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:10:45,745 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:10:45,755 INFO L748 eck$LassoCheckResult]: Stem: 24#$Ultimate##0true assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 12#L85-1true [2023-11-06 22:10:45,756 INFO L750 eck$LassoCheckResult]: Loop: 12#L85-1true assume !false;havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 23#L28true assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 13#L43true assume 0 != main_~p1~0#1;main_~lk1~0#1 := 1; 14#L43-2true assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 19#L47-1true assume !(0 != main_~p3~0#1); 7#L51-1true assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 8#L55-1true assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 9#L59-1true assume !(0 != main_~p1~0#1); 15#L65-1true assume !(0 != main_~p2~0#1); 21#L70-1true assume !(0 != main_~p3~0#1); 22#L75-1true assume !(0 != main_~p4~0#1); 11#L80-1true assume !(0 != main_~p5~0#1); 12#L85-1true [2023-11-06 22:10:45,768 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:45,769 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2023-11-06 22:10:45,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:45,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [480727964] [2023-11-06 22:10:45,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:45,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:45,908 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:10:45,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:45,941 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:10:45,947 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:45,947 INFO L85 PathProgramCache]: Analyzing trace with hash -2089480461, now seen corresponding path program 1 times [2023-11-06 22:10:45,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:45,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321272619] [2023-11-06 22:10:45,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:45,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:45,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:10:46,109 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 22:10:46,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:10:46,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321272619] [2023-11-06 22:10:46,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321272619] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:10:46,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:10:46,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:10:46,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1133344817] [2023-11-06 22:10:46,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:10:46,114 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:10:46,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:10:46,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:10:46,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:10:46,167 INFO L87 Difference]: Start difference. First operand has 25 states, 24 states have (on average 1.75) internal successors, (42), 24 states have internal predecessors, (42), 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 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 22:10:46,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:10:46,205 INFO L93 Difference]: Finished difference Result 43 states and 69 transitions. [2023-11-06 22:10:46,207 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 43 states and 69 transitions. [2023-11-06 22:10:46,210 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2023-11-06 22:10:46,216 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 43 states to 35 states and 53 transitions. [2023-11-06 22:10:46,217 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 35 [2023-11-06 22:10:46,218 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 35 [2023-11-06 22:10:46,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 53 transitions. [2023-11-06 22:10:46,219 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:10:46,219 INFO L218 hiAutomatonCegarLoop]: Abstraction has 35 states and 53 transitions. [2023-11-06 22:10:46,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states and 53 transitions. [2023-11-06 22:10:46,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2023-11-06 22:10:46,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 35 states have (on average 1.5142857142857142) internal successors, (53), 34 states have internal predecessors, (53), 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 22:10:46,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 53 transitions. [2023-11-06 22:10:46,259 INFO L240 hiAutomatonCegarLoop]: Abstraction has 35 states and 53 transitions. [2023-11-06 22:10:46,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:10:46,266 INFO L428 stractBuchiCegarLoop]: Abstraction has 35 states and 53 transitions. [2023-11-06 22:10:46,266 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2023-11-06 22:10:46,266 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 35 states and 53 transitions. [2023-11-06 22:10:46,268 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 33 [2023-11-06 22:10:46,269 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:10:46,269 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:10:46,269 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:10:46,270 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:10:46,270 INFO L748 eck$LassoCheckResult]: Stem: 102#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 91#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 92#L85-1 [2023-11-06 22:10:46,270 INFO L750 eck$LassoCheckResult]: Loop: 92#L85-1 assume !false;havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 100#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 101#L43 assume !(0 != main_~p1~0#1); 84#L43-2 assume 0 != main_~p2~0#1;main_~lk2~0#1 := 1; 85#L47-1 assume !(0 != main_~p3~0#1); 93#L51-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 94#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 95#L59-1 assume !(0 != main_~p1~0#1); 86#L65-1 assume !(0 != main_~p2~0#1); 87#L70-1 assume !(0 != main_~p3~0#1); 97#L75-1 assume !(0 != main_~p4~0#1); 107#L80-1 assume !(0 != main_~p5~0#1); 92#L85-1 [2023-11-06 22:10:46,271 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:46,271 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2023-11-06 22:10:46,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:46,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363667991] [2023-11-06 22:10:46,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:46,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:46,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:10:46,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,291 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:10:46,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:46,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1812459825, now seen corresponding path program 1 times [2023-11-06 22:10:46,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:46,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926482490] [2023-11-06 22:10:46,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:46,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:46,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:10:46,338 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 22:10:46,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:10:46,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926482490] [2023-11-06 22:10:46,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926482490] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:10:46,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:10:46,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:10:46,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774358101] [2023-11-06 22:10:46,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:10:46,341 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:10:46,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:10:46,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:10:46,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:10:46,342 INFO L87 Difference]: Start difference. First operand 35 states and 53 transitions. cyclomatic complexity: 20 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 22:10:46,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:10:46,365 INFO L93 Difference]: Finished difference Result 66 states and 98 transitions. [2023-11-06 22:10:46,365 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 98 transitions. [2023-11-06 22:10:46,369 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2023-11-06 22:10:46,372 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 66 states and 98 transitions. [2023-11-06 22:10:46,372 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 66 [2023-11-06 22:10:46,373 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 66 [2023-11-06 22:10:46,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 66 states and 98 transitions. [2023-11-06 22:10:46,374 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:10:46,374 INFO L218 hiAutomatonCegarLoop]: Abstraction has 66 states and 98 transitions. [2023-11-06 22:10:46,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states and 98 transitions. [2023-11-06 22:10:46,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2023-11-06 22:10:46,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 66 states have (on average 1.4848484848484849) internal successors, (98), 65 states have internal predecessors, (98), 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 22:10:46,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 98 transitions. [2023-11-06 22:10:46,390 INFO L240 hiAutomatonCegarLoop]: Abstraction has 66 states and 98 transitions. [2023-11-06 22:10:46,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:10:46,392 INFO L428 stractBuchiCegarLoop]: Abstraction has 66 states and 98 transitions. [2023-11-06 22:10:46,392 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2023-11-06 22:10:46,393 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 66 states and 98 transitions. [2023-11-06 22:10:46,395 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 64 [2023-11-06 22:10:46,396 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:10:46,396 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:10:46,397 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:10:46,397 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:10:46,397 INFO L748 eck$LassoCheckResult]: Stem: 209#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 198#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 199#L85-1 [2023-11-06 22:10:46,398 INFO L750 eck$LassoCheckResult]: Loop: 199#L85-1 assume !false;havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 226#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 224#L43 assume !(0 != main_~p1~0#1); 221#L43-2 assume !(0 != main_~p2~0#1); 220#L47-1 assume !(0 != main_~p3~0#1); 218#L51-1 assume 0 != main_~p4~0#1;main_~lk4~0#1 := 1; 216#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 215#L59-1 assume !(0 != main_~p1~0#1); 210#L65-1 assume !(0 != main_~p2~0#1); 211#L70-1 assume !(0 != main_~p3~0#1); 235#L75-1 assume !(0 != main_~p4~0#1); 231#L80-1 assume !(0 != main_~p5~0#1); 199#L85-1 [2023-11-06 22:10:46,398 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:46,398 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 3 times [2023-11-06 22:10:46,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:46,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776931368] [2023-11-06 22:10:46,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:46,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:46,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,409 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:10:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,418 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:10:46,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:46,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1802449101, now seen corresponding path program 1 times [2023-11-06 22:10:46,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:46,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295409114] [2023-11-06 22:10:46,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:46,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:10:46,464 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 22:10:46,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:10:46,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295409114] [2023-11-06 22:10:46,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295409114] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:10:46,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:10:46,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-06 22:10:46,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123450801] [2023-11-06 22:10:46,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:10:46,467 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:10:46,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:10:46,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:10:46,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:10:46,469 INFO L87 Difference]: Start difference. First operand 66 states and 98 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 22:10:46,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:10:46,493 INFO L93 Difference]: Finished difference Result 126 states and 182 transitions. [2023-11-06 22:10:46,493 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 182 transitions. [2023-11-06 22:10:46,499 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2023-11-06 22:10:46,504 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 126 states and 182 transitions. [2023-11-06 22:10:46,504 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 126 [2023-11-06 22:10:46,505 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 126 [2023-11-06 22:10:46,505 INFO L73 IsDeterministic]: Start isDeterministic. Operand 126 states and 182 transitions. [2023-11-06 22:10:46,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:10:46,507 INFO L218 hiAutomatonCegarLoop]: Abstraction has 126 states and 182 transitions. [2023-11-06 22:10:46,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states and 182 transitions. [2023-11-06 22:10:46,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 126. [2023-11-06 22:10:46,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 126 states have (on average 1.4444444444444444) internal successors, (182), 125 states have internal predecessors, (182), 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 22:10:46,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 182 transitions. [2023-11-06 22:10:46,538 INFO L240 hiAutomatonCegarLoop]: Abstraction has 126 states and 182 transitions. [2023-11-06 22:10:46,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:10:46,541 INFO L428 stractBuchiCegarLoop]: Abstraction has 126 states and 182 transitions. [2023-11-06 22:10:46,541 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2023-11-06 22:10:46,541 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 126 states and 182 transitions. [2023-11-06 22:10:46,554 INFO L131 ngComponentsAnalysis]: Automaton has 8 accepting balls. 124 [2023-11-06 22:10:46,554 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:10:46,554 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:10:46,555 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:10:46,555 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:10:46,556 INFO L748 eck$LassoCheckResult]: Stem: 408#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 395#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 396#L85-1 [2023-11-06 22:10:46,556 INFO L750 eck$LassoCheckResult]: Loop: 396#L85-1 assume !false;havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 445#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 442#L43 assume !(0 != main_~p1~0#1); 438#L43-2 assume !(0 != main_~p2~0#1); 436#L47-1 assume !(0 != main_~p3~0#1); 422#L51-1 assume !(0 != main_~p4~0#1); 423#L55-1 assume 0 != main_~p5~0#1;main_~lk5~0#1 := 1; 463#L59-1 assume !(0 != main_~p1~0#1); 461#L65-1 assume !(0 != main_~p2~0#1); 460#L70-1 assume !(0 != main_~p3~0#1); 454#L75-1 assume !(0 != main_~p4~0#1); 451#L80-1 assume !(0 != main_~p5~0#1); 396#L85-1 [2023-11-06 22:10:46,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:46,558 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 4 times [2023-11-06 22:10:46,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:46,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142803609] [2023-11-06 22:10:46,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:46,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:46,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:10:46,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,591 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:10:46,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:46,592 INFO L85 PathProgramCache]: Analyzing trace with hash -27441739, now seen corresponding path program 1 times [2023-11-06 22:10:46,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:46,593 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1230907548] [2023-11-06 22:10:46,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:46,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:46,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-06 22:10:46,633 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 22:10:46,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-06 22:10:46,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1230907548] [2023-11-06 22:10:46,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1230907548] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-06 22:10:46,635 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-06 22:10:46,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-06 22:10:46,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214860953] [2023-11-06 22:10:46,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-06 22:10:46,636 INFO L765 eck$LassoCheckResult]: loop already infeasible [2023-11-06 22:10:46,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-06 22:10:46,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-06 22:10:46,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-06 22:10:46,638 INFO L87 Difference]: Start difference. First operand 126 states and 182 transitions. cyclomatic complexity: 64 Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 22:10:46,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-06 22:10:46,663 INFO L93 Difference]: Finished difference Result 242 states and 338 transitions. [2023-11-06 22:10:46,664 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 242 states and 338 transitions. [2023-11-06 22:10:46,668 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2023-11-06 22:10:46,673 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 242 states to 242 states and 338 transitions. [2023-11-06 22:10:46,673 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 242 [2023-11-06 22:10:46,675 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 242 [2023-11-06 22:10:46,675 INFO L73 IsDeterministic]: Start isDeterministic. Operand 242 states and 338 transitions. [2023-11-06 22:10:46,677 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-06 22:10:46,677 INFO L218 hiAutomatonCegarLoop]: Abstraction has 242 states and 338 transitions. [2023-11-06 22:10:46,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states and 338 transitions. [2023-11-06 22:10:46,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 242. [2023-11-06 22:10:46,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 242 states have (on average 1.396694214876033) internal successors, (338), 241 states have internal predecessors, (338), 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 22:10:46,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 338 transitions. [2023-11-06 22:10:46,704 INFO L240 hiAutomatonCegarLoop]: Abstraction has 242 states and 338 transitions. [2023-11-06 22:10:46,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-06 22:10:46,705 INFO L428 stractBuchiCegarLoop]: Abstraction has 242 states and 338 transitions. [2023-11-06 22:10:46,705 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2023-11-06 22:10:46,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 242 states and 338 transitions. [2023-11-06 22:10:46,708 INFO L131 ngComponentsAnalysis]: Automaton has 16 accepting balls. 240 [2023-11-06 22:10:46,709 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2023-11-06 22:10:46,709 INFO L119 BuchiIsEmpty]: Starting construction of run [2023-11-06 22:10:46,709 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2023-11-06 22:10:46,709 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-06 22:10:46,710 INFO L748 eck$LassoCheckResult]: Stem: 782#$Ultimate##0 assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(15, 2);call #Ultimate.allocInit(12, 3); 769#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_~p1~0#1, main_~lk1~0#1, main_~p2~0#1, main_~lk2~0#1, main_~p3~0#1, main_~lk3~0#1, main_~p4~0#1, main_~lk4~0#1, main_~p5~0#1, main_~lk5~0#1, main_~cond~0#1;havoc main_#t~nondet4#1;main_~p1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;havoc main_~lk1~0#1;havoc main_#t~nondet5#1;main_~p2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;havoc main_~lk2~0#1;havoc main_#t~nondet6#1;main_~p3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;havoc main_~lk3~0#1;havoc main_#t~nondet7#1;main_~p4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1;havoc main_~lk4~0#1;havoc main_#t~nondet8#1;main_~p5~0#1 := main_#t~nondet8#1;havoc main_#t~nondet8#1;havoc main_~lk5~0#1;havoc main_~cond~0#1; 770#L85-1 [2023-11-06 22:10:46,710 INFO L750 eck$LassoCheckResult]: Loop: 770#L85-1 assume !false;havoc main_#t~nondet9#1;main_~cond~0#1 := main_#t~nondet9#1;havoc main_#t~nondet9#1; 810#L28 assume !(0 == main_~cond~0#1);main_~lk1~0#1 := 0;main_~lk2~0#1 := 0;main_~lk3~0#1 := 0;main_~lk4~0#1 := 0;main_~lk5~0#1 := 0; 805#L43 assume !(0 != main_~p1~0#1); 806#L43-2 assume !(0 != main_~p2~0#1); 848#L47-1 assume !(0 != main_~p3~0#1); 844#L51-1 assume !(0 != main_~p4~0#1); 840#L55-1 assume !(0 != main_~p5~0#1); 838#L59-1 assume !(0 != main_~p1~0#1); 835#L65-1 assume !(0 != main_~p2~0#1); 832#L70-1 assume !(0 != main_~p3~0#1); 825#L75-1 assume !(0 != main_~p4~0#1); 819#L80-1 assume !(0 != main_~p5~0#1); 770#L85-1 [2023-11-06 22:10:46,711 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:46,711 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 5 times [2023-11-06 22:10:46,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:46,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175055765] [2023-11-06 22:10:46,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:46,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:46,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,719 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:10:46,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,727 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:10:46,727 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:46,728 INFO L85 PathProgramCache]: Analyzing trace with hash 29816563, now seen corresponding path program 1 times [2023-11-06 22:10:46,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:46,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402361996] [2023-11-06 22:10:46,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:46,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:46,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,736 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:10:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,745 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:10:46,746 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-11-06 22:10:46,747 INFO L85 PathProgramCache]: Analyzing trace with hash 1243965365, now seen corresponding path program 1 times [2023-11-06 22:10:46,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-06 22:10:46,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130489535] [2023-11-06 22:10:46,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-06 22:10:46,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-06 22:10:46,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:10:46,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:46,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-06 22:10:47,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:47,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-06 22:10:47,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-06 22:10:47,213 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 06.11 10:10:47 BoogieIcfgContainer [2023-11-06 22:10:47,213 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2023-11-06 22:10:47,214 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-06 22:10:47,215 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-06 22:10:47,215 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-06 22:10:47,216 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:10:45" (3/4) ... [2023-11-06 22:10:47,218 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2023-11-06 22:10:47,287 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/bin/uautomizer-verify-WvqO1wxjHP/witness.graphml.graphml [2023-11-06 22:10:47,287 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-06 22:10:47,288 INFO L158 Benchmark]: Toolchain (without parser) took 2417.40ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 86.5MB in the beginning and 64.0MB in the end (delta: 22.5MB). Peak memory consumption was 50.6MB. Max. memory is 16.1GB. [2023-11-06 22:10:47,288 INFO L158 Benchmark]: CDTParser took 0.70ms. Allocated memory is still 121.6MB. Free memory was 96.2MB in the beginning and 96.1MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:10:47,289 INFO L158 Benchmark]: CACSL2BoogieTranslator took 242.05ms. Allocated memory is still 121.6MB. Free memory was 86.5MB in the beginning and 76.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-06 22:10:47,289 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.58ms. Allocated memory is still 121.6MB. Free memory was 76.0MB in the beginning and 74.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:10:47,290 INFO L158 Benchmark]: Boogie Preprocessor took 22.95ms. Allocated memory is still 121.6MB. Free memory was 74.4MB in the beginning and 73.6MB in the end (delta: 770.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-06 22:10:47,290 INFO L158 Benchmark]: RCFGBuilder took 435.34ms. Allocated memory is still 121.6MB. Free memory was 73.2MB in the beginning and 63.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-06 22:10:47,291 INFO L158 Benchmark]: BuchiAutomizer took 1600.49ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 63.1MB in the beginning and 66.1MB in the end (delta: -3.0MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2023-11-06 22:10:47,291 INFO L158 Benchmark]: Witness Printer took 72.92ms. Allocated memory is still 146.8MB. Free memory was 66.1MB in the beginning and 64.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-06 22:10:47,302 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70ms. Allocated memory is still 121.6MB. Free memory was 96.2MB in the beginning and 96.1MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 242.05ms. Allocated memory is still 121.6MB. Free memory was 86.5MB in the beginning and 76.0MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.58ms. Allocated memory is still 121.6MB. Free memory was 76.0MB in the beginning and 74.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.95ms. Allocated memory is still 121.6MB. Free memory was 74.4MB in the beginning and 73.6MB in the end (delta: 770.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 435.34ms. Allocated memory is still 121.6MB. Free memory was 73.2MB in the beginning and 63.1MB in the end (delta: 10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 1600.49ms. Allocated memory was 121.6MB in the beginning and 146.8MB in the end (delta: 25.2MB). Free memory was 63.1MB in the beginning and 66.1MB in the end (delta: -3.0MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Witness Printer took 72.92ms. Allocated memory is still 146.8MB. Free memory was 66.1MB in the beginning and 64.0MB in the end (delta: 2.1MB). 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 242 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 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, 87 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 87 mSDsluCounter, 275 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 99 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 176 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 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: 26]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L24] int cond; Loop: [L26] COND TRUE 1 [L27] cond = __VERIFIER_nondet_int() [L28] COND FALSE !(cond == 0) [L31] lk1 = 0 [L33] lk2 = 0 [L35] lk3 = 0 [L37] lk4 = 0 [L39] lk5 = 0 [L43] COND FALSE !(p1 != 0) [L47] COND FALSE !(p2 != 0) [L51] COND FALSE !(p3 != 0) [L55] COND FALSE !(p4 != 0) [L59] COND FALSE !(p5 != 0) [L65] COND FALSE !(p1 != 0) [L70] COND FALSE !(p2 != 0) [L75] COND FALSE !(p3 != 0) [L80] COND FALSE !(p4 != 0) [L85] COND FALSE !(p5 != 0) End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L8] int p1 = __VERIFIER_nondet_int(); [L9] int lk1; [L11] int p2 = __VERIFIER_nondet_int(); [L12] int lk2; [L14] int p3 = __VERIFIER_nondet_int(); [L15] int lk3; [L17] int p4 = __VERIFIER_nondet_int(); [L18] int lk4; [L20] int p5 = __VERIFIER_nondet_int(); [L21] int lk5; [L24] int cond; Loop: [L26] COND TRUE 1 [L27] cond = __VERIFIER_nondet_int() [L28] COND FALSE !(cond == 0) [L31] lk1 = 0 [L33] lk2 = 0 [L35] lk3 = 0 [L37] lk4 = 0 [L39] lk5 = 0 [L43] COND FALSE !(p1 != 0) [L47] COND FALSE !(p2 != 0) [L51] COND FALSE !(p3 != 0) [L55] COND FALSE !(p4 != 0) [L59] COND FALSE !(p5 != 0) [L65] COND FALSE !(p1 != 0) [L70] COND FALSE !(p2 != 0) [L75] COND FALSE !(p3 != 0) [L80] COND FALSE !(p4 != 0) [L85] COND FALSE !(p5 != 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2023-11-06 22:10:47,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6cbf1285-2201-4712-80fc-9fc6b8f8fe1c/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)