./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem10_label54.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30e01a73 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_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem10_label54.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash feb39bca06af67d7ac060da1dc3bc8180fef7df0c321a0d50ad90b8125c604ff --- Real Ultimate output --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:32:59,658 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:32:59,766 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-23 22:32:59,773 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:32:59,775 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:32:59,818 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:32:59,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:32:59,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:32:59,821 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:32:59,826 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:32:59,826 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:32:59,828 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:32:59,829 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:32:59,830 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:32:59,831 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:32:59,832 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:32:59,832 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:32:59,833 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:32:59,834 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:32:59,834 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:32:59,835 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:32:59,835 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:32:59,836 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:32:59,836 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:32:59,837 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:32:59,837 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:32:59,838 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:32:59,839 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:32:59,839 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:32:59,840 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:32:59,841 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:32:59,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:32:59,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:32:59,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:32:59,843 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:32:59,843 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:32:59,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:32:59,844 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:32:59,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:32:59,845 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:32:59,845 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:32:59,846 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:32:59,846 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> feb39bca06af67d7ac060da1dc3bc8180fef7df0c321a0d50ad90b8125c604ff [2023-11-23 22:33:00,179 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:33:00,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:33:00,219 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:33:00,220 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:33:00,221 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:33:00,222 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/eca-rers2012/Problem10_label54.c [2023-11-23 22:33:03,419 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:33:03,706 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:33:03,707 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/sv-benchmarks/c/eca-rers2012/Problem10_label54.c [2023-11-23 22:33:03,735 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/data/f54896570/1e462d91e9e94f5cb1ad13e4c8355888/FLAGf1d943269 [2023-11-23 22:33:03,761 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/data/f54896570/1e462d91e9e94f5cb1ad13e4c8355888 [2023-11-23 22:33:03,764 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:33:03,766 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:33:03,769 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:33:03,770 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:33:03,776 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:33:03,779 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:33:03" (1/1) ... [2023-11-23 22:33:03,780 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30b1363a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:03, skipping insertion in model container [2023-11-23 22:33:03,780 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:33:03" (1/1) ... [2023-11-23 22:33:03,859 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:33:04,123 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/sv-benchmarks/c/eca-rers2012/Problem10_label54.c[7067,7080] [2023-11-23 22:33:04,281 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:33:04,294 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:33:04,337 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/sv-benchmarks/c/eca-rers2012/Problem10_label54.c[7067,7080] [2023-11-23 22:33:04,477 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:33:04,498 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:33:04,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04 WrapperNode [2023-11-23 22:33:04,499 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:33:04,500 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:33:04,501 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:33:04,501 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:33:04,509 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,536 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,637 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 598 [2023-11-23 22:33:04,638 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:33:04,638 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:33:04,639 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:33:04,639 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:33:04,650 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,651 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,668 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,691 INFO L189 HeapSplitter]: Split 2 memory accesses to 1 slices as follows [2] [2023-11-23 22:33:04,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,720 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,734 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:33:04,750 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:33:04,750 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:33:04,750 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:33:04,751 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (1/1) ... [2023-11-23 22:33:04,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:33:04,788 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:33:04,806 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:33:04,836 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:33:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:33:04,853 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:33:04,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:33:04,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:33:04,943 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:33:04,945 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:33:06,274 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:33:06,344 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:33:06,346 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-11-23 22:33:06,347 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:33:06 BoogieIcfgContainer [2023-11-23 22:33:06,347 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:33:06,350 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:33:06,350 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:33:06,354 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:33:06,354 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:33:03" (1/3) ... [2023-11-23 22:33:06,355 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ba2945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:33:06, skipping insertion in model container [2023-11-23 22:33:06,355 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:33:04" (2/3) ... [2023-11-23 22:33:06,357 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52ba2945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:33:06, skipping insertion in model container [2023-11-23 22:33:06,358 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:33:06" (3/3) ... [2023-11-23 22:33:06,360 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem10_label54.c [2023-11-23 22:33:06,376 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:33:06,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 22:33:06,448 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:33:06,454 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@196fafb8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:33:06,454 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 22:33:06,460 INFO L276 IsEmpty]: Start isEmpty. Operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 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) [2023-11-23 22:33:06,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 22:33:06,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:33:06,475 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:06,476 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:33:06,484 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:06,485 INFO L85 PathProgramCache]: Analyzing trace with hash 288036387, now seen corresponding path program 1 times [2023-11-23 22:33:06,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:06,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370658275] [2023-11-23 22:33:06,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:06,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:06,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:06,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:06,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:06,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370658275] [2023-11-23 22:33:06,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370658275] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:06,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:06,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:33:06,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795610139] [2023-11-23 22:33:06,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:06,777 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 22:33:06,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:06,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 22:33:06,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:33:06,829 INFO L87 Difference]: Start difference. First operand has 144 states, 142 states have (on average 1.9859154929577465) internal successors, (282), 143 states have internal predecessors, (282), 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 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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) [2023-11-23 22:33:06,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:33:06,887 INFO L93 Difference]: Finished difference Result 287 states and 563 transitions. [2023-11-23 22:33:06,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 22:33:06,890 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2023-11-23 22:33:06,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:33:06,901 INFO L225 Difference]: With dead ends: 287 [2023-11-23 22:33:06,902 INFO L226 Difference]: Without dead ends: 142 [2023-11-23 22:33:06,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 22:33:06,908 INFO L413 NwaCegarLoop]: 217 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-23 22:33:06,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 217 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-23 22:33:06,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-23 22:33:06,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 142. [2023-11-23 22:33:06,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 1.5390070921985815) internal successors, (217), 141 states have internal predecessors, (217), 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) [2023-11-23 22:33:06,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2023-11-23 22:33:06,951 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 61 [2023-11-23 22:33:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:33:06,952 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2023-11-23 22:33:06,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 30.5) internal successors, (61), 2 states have internal predecessors, (61), 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) [2023-11-23 22:33:06,952 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2023-11-23 22:33:06,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-23 22:33:06,955 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:33:06,955 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:06,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:33:06,955 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:33:06,956 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:06,956 INFO L85 PathProgramCache]: Analyzing trace with hash -583722954, now seen corresponding path program 1 times [2023-11-23 22:33:06,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:06,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210113658] [2023-11-23 22:33:06,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:06,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:07,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:07,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:07,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210113658] [2023-11-23 22:33:07,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210113658] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:07,354 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:07,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:33:07,354 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270417894] [2023-11-23 22:33:07,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:07,356 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:33:07,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:07,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:33:07,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:07,358 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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) [2023-11-23 22:33:08,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:33:08,084 INFO L93 Difference]: Finished difference Result 422 states and 648 transitions. [2023-11-23 22:33:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:33:08,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 61 [2023-11-23 22:33:08,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:33:08,088 INFO L225 Difference]: With dead ends: 422 [2023-11-23 22:33:08,089 INFO L226 Difference]: Without dead ends: 281 [2023-11-23 22:33:08,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:08,092 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 85 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-23 22:33:08,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 65 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-23 22:33:08,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-11-23 22:33:08,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 281. [2023-11-23 22:33:08,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.3428571428571427) internal successors, (376), 280 states have internal predecessors, (376), 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) [2023-11-23 22:33:08,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 376 transitions. [2023-11-23 22:33:08,118 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 376 transitions. Word has length 61 [2023-11-23 22:33:08,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:33:08,118 INFO L495 AbstractCegarLoop]: Abstraction has 281 states and 376 transitions. [2023-11-23 22:33:08,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.333333333333332) internal successors, (61), 2 states have internal predecessors, (61), 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) [2023-11-23 22:33:08,119 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 376 transitions. [2023-11-23 22:33:08,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-23 22:33:08,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:33:08,125 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:08,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:33:08,126 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:33:08,126 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:08,127 INFO L85 PathProgramCache]: Analyzing trace with hash 2146041442, now seen corresponding path program 1 times [2023-11-23 22:33:08,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:08,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650875433] [2023-11-23 22:33:08,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:08,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:08,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:08,427 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:08,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:08,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650875433] [2023-11-23 22:33:08,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650875433] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:08,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:08,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:33:08,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161106105] [2023-11-23 22:33:08,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:08,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:33:08,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:08,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:33:08,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:08,431 INFO L87 Difference]: Start difference. First operand 281 states and 376 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2023-11-23 22:33:09,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:33:09,103 INFO L93 Difference]: Finished difference Result 700 states and 966 transitions. [2023-11-23 22:33:09,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:33:09,104 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2023-11-23 22:33:09,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:33:09,108 INFO L225 Difference]: With dead ends: 700 [2023-11-23 22:33:09,108 INFO L226 Difference]: Without dead ends: 420 [2023-11-23 22:33:09,110 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:09,112 INFO L413 NwaCegarLoop]: 208 mSDtfsCounter, 84 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:33:09,113 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 212 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:33:09,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2023-11-23 22:33:09,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 420. [2023-11-23 22:33:09,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 1.2529832935560858) internal successors, (525), 419 states have internal predecessors, (525), 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) [2023-11-23 22:33:09,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 525 transitions. [2023-11-23 22:33:09,133 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 525 transitions. Word has length 127 [2023-11-23 22:33:09,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:33:09,134 INFO L495 AbstractCegarLoop]: Abstraction has 420 states and 525 transitions. [2023-11-23 22:33:09,134 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2023-11-23 22:33:09,134 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 525 transitions. [2023-11-23 22:33:09,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2023-11-23 22:33:09,138 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:33:09,138 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:09,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:33:09,139 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:33:09,139 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:09,140 INFO L85 PathProgramCache]: Analyzing trace with hash -697018787, now seen corresponding path program 1 times [2023-11-23 22:33:09,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:09,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510342663] [2023-11-23 22:33:09,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:09,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:09,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:09,525 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:09,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:09,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510342663] [2023-11-23 22:33:09,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510342663] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:09,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:09,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:33:09,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046879856] [2023-11-23 22:33:09,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:09,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:33:09,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:09,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:33:09,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:09,535 INFO L87 Difference]: Start difference. First operand 420 states and 525 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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) [2023-11-23 22:33:10,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:33:10,107 INFO L93 Difference]: Finished difference Result 978 states and 1208 transitions. [2023-11-23 22:33:10,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:33:10,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2023-11-23 22:33:10,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:33:10,112 INFO L225 Difference]: With dead ends: 978 [2023-11-23 22:33:10,112 INFO L226 Difference]: Without dead ends: 559 [2023-11-23 22:33:10,113 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:10,114 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 22:33:10,115 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 75 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 22:33:10,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-11-23 22:33:10,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2023-11-23 22:33:10,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2078853046594982) internal successors, (674), 558 states have internal predecessors, (674), 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) [2023-11-23 22:33:10,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 674 transitions. [2023-11-23 22:33:10,135 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 674 transitions. Word has length 134 [2023-11-23 22:33:10,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:33:10,135 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 674 transitions. [2023-11-23 22:33:10,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 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) [2023-11-23 22:33:10,136 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 674 transitions. [2023-11-23 22:33:10,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2023-11-23 22:33:10,140 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:33:10,140 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:10,140 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 22:33:10,141 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:33:10,141 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:10,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1728197272, now seen corresponding path program 1 times [2023-11-23 22:33:10,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:10,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295368270] [2023-11-23 22:33:10,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:10,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:10,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:10,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:10,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295368270] [2023-11-23 22:33:10,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295368270] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:10,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:10,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-23 22:33:10,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594703188] [2023-11-23 22:33:10,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:10,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-23 22:33:10,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:10,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-23 22:33:10,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:33:10,624 INFO L87 Difference]: Start difference. First operand 559 states and 674 transitions. Second operand has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:11,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:33:11,303 INFO L93 Difference]: Finished difference Result 1033 states and 1253 transitions. [2023-11-23 22:33:11,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-23 22:33:11,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 136 [2023-11-23 22:33:11,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:33:11,308 INFO L225 Difference]: With dead ends: 1033 [2023-11-23 22:33:11,308 INFO L226 Difference]: Without dead ends: 559 [2023-11-23 22:33:11,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-23 22:33:11,310 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 142 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 737 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:33:11,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 21 Invalid, 737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 737 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:33:11,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 559 states. [2023-11-23 22:33:11,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 559 to 559. [2023-11-23 22:33:11,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 558 states have (on average 1.2025089605734767) internal successors, (671), 558 states have internal predecessors, (671), 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) [2023-11-23 22:33:11,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 671 transitions. [2023-11-23 22:33:11,327 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 671 transitions. Word has length 136 [2023-11-23 22:33:11,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:33:11,327 INFO L495 AbstractCegarLoop]: Abstraction has 559 states and 671 transitions. [2023-11-23 22:33:11,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.428571428571427) internal successors, (136), 6 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:11,328 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 671 transitions. [2023-11-23 22:33:11,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2023-11-23 22:33:11,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:33:11,330 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:11,331 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 22:33:11,331 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:33:11,331 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:11,332 INFO L85 PathProgramCache]: Analyzing trace with hash -104913808, now seen corresponding path program 1 times [2023-11-23 22:33:11,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:11,332 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058915315] [2023-11-23 22:33:11,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:11,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:11,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:11,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:11,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058915315] [2023-11-23 22:33:11,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058915315] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:11,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:11,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:33:11,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400989369] [2023-11-23 22:33:11,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:11,492 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:33:11,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:11,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:33:11,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:11,493 INFO L87 Difference]: Start difference. First operand 559 states and 671 transitions. Second operand has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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) [2023-11-23 22:33:12,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:33:12,085 INFO L93 Difference]: Finished difference Result 1256 states and 1565 transitions. [2023-11-23 22:33:12,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:33:12,086 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 152 [2023-11-23 22:33:12,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:33:12,091 INFO L225 Difference]: With dead ends: 1256 [2023-11-23 22:33:12,091 INFO L226 Difference]: Without dead ends: 837 [2023-11-23 22:33:12,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:12,093 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 87 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-23 22:33:12,111 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 32 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-23 22:33:12,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2023-11-23 22:33:12,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 837. [2023-11-23 22:33:12,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 837 states, 836 states have (on average 1.1997607655502391) internal successors, (1003), 836 states have internal predecessors, (1003), 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) [2023-11-23 22:33:12,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 837 states to 837 states and 1003 transitions. [2023-11-23 22:33:12,139 INFO L78 Accepts]: Start accepts. Automaton has 837 states and 1003 transitions. Word has length 152 [2023-11-23 22:33:12,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:33:12,140 INFO L495 AbstractCegarLoop]: Abstraction has 837 states and 1003 transitions. [2023-11-23 22:33:12,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.666666666666664) internal successors, (152), 2 states have internal predecessors, (152), 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) [2023-11-23 22:33:12,140 INFO L276 IsEmpty]: Start isEmpty. Operand 837 states and 1003 transitions. [2023-11-23 22:33:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-11-23 22:33:12,143 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:33:12,144 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:12,144 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-23 22:33:12,144 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:33:12,145 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:12,145 INFO L85 PathProgramCache]: Analyzing trace with hash 264534718, now seen corresponding path program 1 times [2023-11-23 22:33:12,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:12,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570855333] [2023-11-23 22:33:12,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:12,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:12,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:12,566 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:12,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:12,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570855333] [2023-11-23 22:33:12,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570855333] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:12,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:33:12,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:33:12,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932878871] [2023-11-23 22:33:12,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:12,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:33:12,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:12,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:33:12,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:12,570 INFO L87 Difference]: Start difference. First operand 837 states and 1003 transitions. Second operand has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2023-11-23 22:33:13,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:33:13,154 INFO L93 Difference]: Finished difference Result 1673 states and 2051 transitions. [2023-11-23 22:33:13,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:33:13,155 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 172 [2023-11-23 22:33:13,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:33:13,161 INFO L225 Difference]: With dead ends: 1673 [2023-11-23 22:33:13,161 INFO L226 Difference]: Without dead ends: 976 [2023-11-23 22:33:13,162 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-23 22:33:13,163 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 105 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 22:33:13,164 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 14 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 22:33:13,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-11-23 22:33:13,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 976. [2023-11-23 22:33:13,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 976 states, 975 states have (on average 1.2102564102564102) internal successors, (1180), 975 states have internal predecessors, (1180), 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) [2023-11-23 22:33:13,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 976 states to 976 states and 1180 transitions. [2023-11-23 22:33:13,190 INFO L78 Accepts]: Start accepts. Automaton has 976 states and 1180 transitions. Word has length 172 [2023-11-23 22:33:13,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:33:13,191 INFO L495 AbstractCegarLoop]: Abstraction has 976 states and 1180 transitions. [2023-11-23 22:33:13,192 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.333333333333336) internal successors, (172), 3 states have internal predecessors, (172), 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) [2023-11-23 22:33:13,192 INFO L276 IsEmpty]: Start isEmpty. Operand 976 states and 1180 transitions. [2023-11-23 22:33:13,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2023-11-23 22:33:13,196 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:33:13,196 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:13,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 22:33:13,197 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:33:13,197 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:13,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1478986965, now seen corresponding path program 1 times [2023-11-23 22:33:13,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:13,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663411058] [2023-11-23 22:33:13,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:13,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:13,711 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 92 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2023-11-23 22:33:13,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:13,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663411058] [2023-11-23 22:33:13,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663411058] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:33:13,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908527812] [2023-11-23 22:33:13,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:13,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:33:13,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:33:13,720 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:33:13,764 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 22:33:13,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:13,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:33:13,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:33:14,343 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2023-11-23 22:33:14,344 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:33:14,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908527812] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:14,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:33:14,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2023-11-23 22:33:14,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602830086] [2023-11-23 22:33:14,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:14,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:33:14,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:14,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:33:14,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:33:14,346 INFO L87 Difference]: Start difference. First operand 976 states and 1180 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2023-11-23 22:33:14,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:33:14,919 INFO L93 Difference]: Finished difference Result 1534 states and 1850 transitions. [2023-11-23 22:33:14,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:33:14,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 245 [2023-11-23 22:33:14,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:33:14,928 INFO L225 Difference]: With dead ends: 1534 [2023-11-23 22:33:14,928 INFO L226 Difference]: Without dead ends: 1532 [2023-11-23 22:33:14,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 247 GetRequests, 244 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-23 22:33:14,930 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 363 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 363 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 22:33:14,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 9 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 363 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 22:33:14,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1532 states. [2023-11-23 22:33:14,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1532 to 1115. [2023-11-23 22:33:14,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 1114 states have (on average 1.2280071813285458) internal successors, (1368), 1114 states have internal predecessors, (1368), 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) [2023-11-23 22:33:14,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1368 transitions. [2023-11-23 22:33:14,962 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1368 transitions. Word has length 245 [2023-11-23 22:33:14,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:33:14,962 INFO L495 AbstractCegarLoop]: Abstraction has 1115 states and 1368 transitions. [2023-11-23 22:33:14,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 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) [2023-11-23 22:33:14,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1368 transitions. [2023-11-23 22:33:14,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2023-11-23 22:33:14,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 22:33:14,968 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:15,000 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 22:33:15,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:33:15,201 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 22:33:15,201 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:33:15,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1401090132, now seen corresponding path program 1 times [2023-11-23 22:33:15,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:33:15,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818163966] [2023-11-23 22:33:15,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:15,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:33:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:16,399 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 210 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:33:16,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:33:16,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818163966] [2023-11-23 22:33:16,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818163966] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 22:33:16,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1090344682] [2023-11-23 22:33:16,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:33:16,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:33:16,400 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:33:16,401 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 22:33:16,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 22:33:16,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:33:16,566 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-23 22:33:16,586 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 22:33:16,708 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2023-11-23 22:33:16,708 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 22:33:16,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1090344682] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:33:16,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 22:33:16,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2023-11-23 22:33:16,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130681609] [2023-11-23 22:33:16,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:33:16,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-23 22:33:16,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:33:16,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-23 22:33:16,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:33:16,711 INFO L87 Difference]: Start difference. First operand 1115 states and 1368 transitions. Second operand has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2023-11-23 22:33:17,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 22:33:17,229 INFO L93 Difference]: Finished difference Result 2366 states and 2922 transitions. [2023-11-23 22:33:17,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-23 22:33:17,230 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2023-11-23 22:33:17,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 22:33:17,231 INFO L225 Difference]: With dead ends: 2366 [2023-11-23 22:33:17,231 INFO L226 Difference]: Without dead ends: 0 [2023-11-23 22:33:17,233 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 286 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-23 22:33:17,235 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 80 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 345 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 345 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-23 22:33:17,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 219 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 345 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-23 22:33:17,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-23 22:33:17,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-23 22:33:17,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-23 22:33:17,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-23 22:33:17,240 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 287 [2023-11-23 22:33:17,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 22:33:17,241 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-23 22:33:17,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.333333333333336) internal successors, (178), 3 states have internal predecessors, (178), 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) [2023-11-23 22:33:17,241 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-23 22:33:17,241 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-23 22:33:17,244 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-23 22:33:17,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 22:33:17,460 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 22:33:17,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-23 22:33:17,569 INFO L899 garLoopResultBuilder]: For program point L597(line 597) no Hoare annotation was computed. [2023-11-23 22:33:17,569 INFO L899 garLoopResultBuilder]: For program point L564(lines 564 582) no Hoare annotation was computed. [2023-11-23 22:33:17,569 INFO L899 garLoopResultBuilder]: For program point L333(lines 333 582) no Hoare annotation was computed. [2023-11-23 22:33:17,569 INFO L899 garLoopResultBuilder]: For program point L367(lines 367 582) no Hoare annotation was computed. [2023-11-23 22:33:17,569 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 582) no Hoare annotation was computed. [2023-11-23 22:33:17,569 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 582) no Hoare annotation was computed. [2023-11-23 22:33:17,570 INFO L899 garLoopResultBuilder]: For program point L202-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,570 INFO L899 garLoopResultBuilder]: For program point L169-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,570 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,570 INFO L899 garLoopResultBuilder]: For program point L103-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,570 INFO L899 garLoopResultBuilder]: For program point L70-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,570 INFO L899 garLoopResultBuilder]: For program point L37-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,571 INFO L899 garLoopResultBuilder]: For program point L533(lines 533 582) no Hoare annotation was computed. [2023-11-23 22:33:17,571 INFO L899 garLoopResultBuilder]: For program point L567(lines 567 582) no Hoare annotation was computed. [2023-11-23 22:33:17,571 INFO L899 garLoopResultBuilder]: For program point L435(lines 435 582) no Hoare annotation was computed. [2023-11-23 22:33:17,571 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 582) no Hoare annotation was computed. [2023-11-23 22:33:17,571 INFO L899 garLoopResultBuilder]: For program point L270(lines 270 582) no Hoare annotation was computed. [2023-11-23 22:33:17,571 INFO L899 garLoopResultBuilder]: For program point L403(lines 403 582) no Hoare annotation was computed. [2023-11-23 22:33:17,571 INFO L899 garLoopResultBuilder]: For program point L370(lines 370 582) no Hoare annotation was computed. [2023-11-23 22:33:17,573 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,573 INFO L899 garLoopResultBuilder]: For program point L172-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,573 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,573 INFO L899 garLoopResultBuilder]: For program point L106-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,573 INFO L899 garLoopResultBuilder]: For program point L73-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,573 INFO L899 garLoopResultBuilder]: For program point L40-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,574 INFO L899 garLoopResultBuilder]: For program point L536(lines 536 582) no Hoare annotation was computed. [2023-11-23 22:33:17,574 INFO L899 garLoopResultBuilder]: For program point L503(lines 503 582) no Hoare annotation was computed. [2023-11-23 22:33:17,574 INFO L899 garLoopResultBuilder]: For program point L470(lines 470 582) no Hoare annotation was computed. [2023-11-23 22:33:17,574 INFO L899 garLoopResultBuilder]: For program point L339(lines 339 582) no Hoare annotation was computed. [2023-11-23 22:33:17,574 INFO L899 garLoopResultBuilder]: For program point L306(lines 306 582) no Hoare annotation was computed. [2023-11-23 22:33:17,574 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 582) no Hoare annotation was computed. [2023-11-23 22:33:17,574 INFO L899 garLoopResultBuilder]: For program point L208-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,575 INFO L899 garLoopResultBuilder]: For program point L175-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,575 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,575 INFO L899 garLoopResultBuilder]: For program point L109-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,575 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,575 INFO L899 garLoopResultBuilder]: For program point L43-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,575 INFO L899 garLoopResultBuilder]: For program point L539(lines 539 582) no Hoare annotation was computed. [2023-11-23 22:33:17,575 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 582) no Hoare annotation was computed. [2023-11-23 22:33:17,575 INFO L899 garLoopResultBuilder]: For program point L275(lines 275 582) no Hoare annotation was computed. [2023-11-23 22:33:17,576 INFO L899 garLoopResultBuilder]: For program point L573(lines 573 582) no Hoare annotation was computed. [2023-11-23 22:33:17,576 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 582) no Hoare annotation was computed. [2023-11-23 22:33:17,576 INFO L899 garLoopResultBuilder]: For program point L375(lines 375 582) no Hoare annotation was computed. [2023-11-23 22:33:17,576 INFO L899 garLoopResultBuilder]: For program point L475(lines 475 582) no Hoare annotation was computed. [2023-11-23 22:33:17,576 INFO L899 garLoopResultBuilder]: For program point L211-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,576 INFO L899 garLoopResultBuilder]: For program point L178-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,577 INFO L899 garLoopResultBuilder]: For program point L145-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,577 INFO L899 garLoopResultBuilder]: For program point L112-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,577 INFO L899 garLoopResultBuilder]: For program point L79-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,577 INFO L899 garLoopResultBuilder]: For program point L46-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,577 INFO L899 garLoopResultBuilder]: For program point L509(lines 509 582) no Hoare annotation was computed. [2023-11-23 22:33:17,577 INFO L899 garLoopResultBuilder]: For program point L311(lines 311 582) no Hoare annotation was computed. [2023-11-23 22:33:17,577 INFO L899 garLoopResultBuilder]: For program point L345(lines 345 582) no Hoare annotation was computed. [2023-11-23 22:33:17,578 INFO L899 garLoopResultBuilder]: For program point L246(lines 246 582) no Hoare annotation was computed. [2023-11-23 22:33:17,578 INFO L899 garLoopResultBuilder]: For program point L544(lines 544 582) no Hoare annotation was computed. [2023-11-23 22:33:17,578 INFO L899 garLoopResultBuilder]: For program point L181-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,578 INFO L899 garLoopResultBuilder]: For program point L148-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,578 INFO L899 garLoopResultBuilder]: For program point L115-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,578 INFO L899 garLoopResultBuilder]: For program point L82-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,578 INFO L899 garLoopResultBuilder]: For program point L49-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,579 INFO L899 garLoopResultBuilder]: For program point L446(lines 446 582) no Hoare annotation was computed. [2023-11-23 22:33:17,579 INFO L899 garLoopResultBuilder]: For program point L413(lines 413 582) no Hoare annotation was computed. [2023-11-23 22:33:17,580 INFO L899 garLoopResultBuilder]: For program point L380(lines 380 582) no Hoare annotation was computed. [2023-11-23 22:33:17,580 INFO L899 garLoopResultBuilder]: For program point L281(lines 281 582) no Hoare annotation was computed. [2023-11-23 22:33:17,580 INFO L899 garLoopResultBuilder]: For program point L579(lines 579 582) no Hoare annotation was computed. [2023-11-23 22:33:17,580 INFO L899 garLoopResultBuilder]: For program point L249(lines 249 582) no Hoare annotation was computed. [2023-11-23 22:33:17,580 INFO L899 garLoopResultBuilder]: For program point L514(lines 514 582) no Hoare annotation was computed. [2023-11-23 22:33:17,580 INFO L899 garLoopResultBuilder]: For program point L481(lines 481 582) no Hoare annotation was computed. [2023-11-23 22:33:17,580 INFO L899 garLoopResultBuilder]: For program point L316(lines 316 582) no Hoare annotation was computed. [2023-11-23 22:33:17,581 INFO L899 garLoopResultBuilder]: For program point L184-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,581 INFO L899 garLoopResultBuilder]: For program point L151-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,581 INFO L899 garLoopResultBuilder]: For program point L118-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,581 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,581 INFO L899 garLoopResultBuilder]: For program point L52-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,581 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 582) no Hoare annotation was computed. [2023-11-23 22:33:17,581 INFO L899 garLoopResultBuilder]: For program point L550(lines 550 582) no Hoare annotation was computed. [2023-11-23 22:33:17,581 INFO L899 garLoopResultBuilder]: For program point L418(lines 418 582) no Hoare annotation was computed. [2023-11-23 22:33:17,582 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 582) no Hoare annotation was computed. [2023-11-23 22:33:17,582 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 582) no Hoare annotation was computed. [2023-11-23 22:33:17,582 INFO L899 garLoopResultBuilder]: For program point L187-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,582 INFO L899 garLoopResultBuilder]: For program point L154-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,582 INFO L899 garLoopResultBuilder]: For program point L121-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,582 INFO L899 garLoopResultBuilder]: For program point L88-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,582 INFO L899 garLoopResultBuilder]: For program point L55-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,583 INFO L899 garLoopResultBuilder]: For program point L452(lines 452 582) no Hoare annotation was computed. [2023-11-23 22:33:17,583 INFO L899 garLoopResultBuilder]: For program point L287(lines 287 582) no Hoare annotation was computed. [2023-11-23 22:33:17,583 INFO L899 garLoopResultBuilder]: For program point L254(lines 254 582) no Hoare annotation was computed. [2023-11-23 22:33:17,583 INFO L899 garLoopResultBuilder]: For program point L519(lines 519 582) no Hoare annotation was computed. [2023-11-23 22:33:17,583 INFO L899 garLoopResultBuilder]: For program point L486(lines 486 582) no Hoare annotation was computed. [2023-11-23 22:33:17,584 INFO L899 garLoopResultBuilder]: For program point L586(lines 586 602) no Hoare annotation was computed. [2023-11-23 22:33:17,584 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 582) no Hoare annotation was computed. [2023-11-23 22:33:17,584 INFO L899 garLoopResultBuilder]: For program point L355(lines 355 582) no Hoare annotation was computed. [2023-11-23 22:33:17,585 INFO L899 garLoopResultBuilder]: For program point L322(lines 322 582) no Hoare annotation was computed. [2023-11-23 22:33:17,585 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-23 22:33:17,585 INFO L899 garLoopResultBuilder]: For program point L190-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,585 INFO L899 garLoopResultBuilder]: For program point L157-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,585 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,585 INFO L899 garLoopResultBuilder]: For program point L91-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,585 INFO L899 garLoopResultBuilder]: For program point L58-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,586 INFO L899 garLoopResultBuilder]: For program point L555(lines 555 582) no Hoare annotation was computed. [2023-11-23 22:33:17,586 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 582) no Hoare annotation was computed. [2023-11-23 22:33:17,586 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 582) no Hoare annotation was computed. [2023-11-23 22:33:17,586 INFO L899 garLoopResultBuilder]: For program point L259(lines 259 582) no Hoare annotation was computed. [2023-11-23 22:33:17,586 INFO L899 garLoopResultBuilder]: For program point L193-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,586 INFO L899 garLoopResultBuilder]: For program point L160-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,586 INFO L899 garLoopResultBuilder]: For program point L127-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,587 INFO L899 garLoopResultBuilder]: For program point L94-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,587 INFO L899 garLoopResultBuilder]: For program point L61-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,587 INFO L899 garLoopResultBuilder]: For program point L524(lines 524 582) no Hoare annotation was computed. [2023-11-23 22:33:17,587 INFO L899 garLoopResultBuilder]: For program point L491(lines 491 582) no Hoare annotation was computed. [2023-11-23 22:33:17,587 INFO L899 garLoopResultBuilder]: For program point L458(lines 458 582) no Hoare annotation was computed. [2023-11-23 22:33:17,587 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 582) no Hoare annotation was computed. [2023-11-23 22:33:17,587 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 582) no Hoare annotation was computed. [2023-11-23 22:33:17,588 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-23 22:33:17,588 INFO L899 garLoopResultBuilder]: For program point L393(lines 393 582) no Hoare annotation was computed. [2023-11-23 22:33:17,588 INFO L899 garLoopResultBuilder]: For program point L327(lines 327 582) no Hoare annotation was computed. [2023-11-23 22:33:17,588 INFO L895 garLoopResultBuilder]: At program point L592-2(lines 592 601) the Hoare annotation is: (let ((.cse0 (= 14 ~a4~0)) (.cse1 (= ~a12~0 0))) (or (and (<= ~a19~0 6) .cse0 .cse1) (and (= ~a19~0 9) .cse0 .cse1) (and .cse0 .cse1 (not (= ~a10~0 3))))) [2023-11-23 22:33:17,588 INFO L899 garLoopResultBuilder]: For program point L361(lines 361 582) no Hoare annotation was computed. [2023-11-23 22:33:17,589 INFO L899 garLoopResultBuilder]: For program point L196-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,589 INFO L899 garLoopResultBuilder]: For program point L163-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,589 INFO L899 garLoopResultBuilder]: For program point L130-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,589 INFO L899 garLoopResultBuilder]: For program point L97-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,589 INFO L899 garLoopResultBuilder]: For program point L31(lines 31 33) no Hoare annotation was computed. [2023-11-23 22:33:17,589 INFO L899 garLoopResultBuilder]: For program point L64-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,589 INFO L899 garLoopResultBuilder]: For program point L31-2(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,590 INFO L899 garLoopResultBuilder]: For program point L527(lines 527 582) no Hoare annotation was computed. [2023-11-23 22:33:17,590 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 582) no Hoare annotation was computed. [2023-11-23 22:33:17,590 INFO L899 garLoopResultBuilder]: For program point L230(lines 230 582) no Hoare annotation was computed. [2023-11-23 22:33:17,590 INFO L899 garLoopResultBuilder]: For program point calculate_output_returnLabel#1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,591 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 200) no Hoare annotation was computed. [2023-11-23 22:33:17,591 INFO L899 garLoopResultBuilder]: For program point L429(lines 429 582) no Hoare annotation was computed. [2023-11-23 22:33:17,591 INFO L899 garLoopResultBuilder]: For program point L330(lines 330 582) no Hoare annotation was computed. [2023-11-23 22:33:17,591 INFO L899 garLoopResultBuilder]: For program point L264(lines 264 582) no Hoare annotation was computed. [2023-11-23 22:33:17,591 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 582) no Hoare annotation was computed. [2023-11-23 22:33:17,591 INFO L899 garLoopResultBuilder]: For program point L199-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,592 INFO L899 garLoopResultBuilder]: For program point L166-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,592 INFO L899 garLoopResultBuilder]: For program point L133-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,592 INFO L899 garLoopResultBuilder]: For program point L100-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,592 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,592 INFO L899 garLoopResultBuilder]: For program point L34-1(lines 30 584) no Hoare annotation was computed. [2023-11-23 22:33:17,592 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 582) no Hoare annotation was computed. [2023-11-23 22:33:17,592 INFO L899 garLoopResultBuilder]: For program point L464(lines 464 582) no Hoare annotation was computed. [2023-11-23 22:33:17,593 INFO L899 garLoopResultBuilder]: For program point L398(lines 398 582) no Hoare annotation was computed. [2023-11-23 22:33:17,593 INFO L899 garLoopResultBuilder]: For program point L200(line 200) no Hoare annotation was computed. [2023-11-23 22:33:17,596 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:33:17,598 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-23 22:33:17,612 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 10:33:17 BoogieIcfgContainer [2023-11-23 22:33:17,612 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-23 22:33:17,613 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-23 22:33:17,613 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-23 22:33:17,613 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-23 22:33:17,614 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:33:06" (3/4) ... [2023-11-23 22:33:17,616 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-23 22:33:17,645 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-23 22:33:17,646 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2023-11-23 22:33:17,648 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-23 22:33:17,649 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-23 22:33:17,846 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/witness.graphml [2023-11-23 22:33:17,846 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/witness.yml [2023-11-23 22:33:17,846 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-23 22:33:17,847 INFO L158 Benchmark]: Toolchain (without parser) took 14081.08ms. Allocated memory was 159.4MB in the beginning and 312.5MB in the end (delta: 153.1MB). Free memory was 120.7MB in the beginning and 190.9MB in the end (delta: -70.2MB). Peak memory consumption was 83.9MB. Max. memory is 16.1GB. [2023-11-23 22:33:17,847 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-23 22:33:17,848 INFO L158 Benchmark]: CACSL2BoogieTranslator took 730.35ms. Allocated memory is still 159.4MB. Free memory was 120.3MB in the beginning and 92.4MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2023-11-23 22:33:17,848 INFO L158 Benchmark]: Boogie Procedure Inliner took 137.51ms. Allocated memory is still 159.4MB. Free memory was 92.4MB in the beginning and 126.9MB in the end (delta: -34.5MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. [2023-11-23 22:33:17,849 INFO L158 Benchmark]: Boogie Preprocessor took 110.83ms. Allocated memory is still 159.4MB. Free memory was 126.9MB in the beginning and 116.5MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:33:17,849 INFO L158 Benchmark]: RCFGBuilder took 1597.17ms. Allocated memory is still 159.4MB. Free memory was 116.5MB in the beginning and 99.7MB in the end (delta: 16.8MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. [2023-11-23 22:33:17,850 INFO L158 Benchmark]: TraceAbstraction took 11262.18ms. Allocated memory was 159.4MB in the beginning and 312.5MB in the end (delta: 153.1MB). Free memory was 98.6MB in the beginning and 202.4MB in the end (delta: -103.8MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2023-11-23 22:33:17,850 INFO L158 Benchmark]: Witness Printer took 233.60ms. Allocated memory is still 312.5MB. Free memory was 202.4MB in the beginning and 190.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-23 22:33:17,853 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 113.2MB. Free memory is still 63.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 730.35ms. Allocated memory is still 159.4MB. Free memory was 120.3MB in the beginning and 92.4MB in the end (delta: 27.9MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 137.51ms. Allocated memory is still 159.4MB. Free memory was 92.4MB in the beginning and 126.9MB in the end (delta: -34.5MB). Peak memory consumption was 15.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 110.83ms. Allocated memory is still 159.4MB. Free memory was 126.9MB in the beginning and 116.5MB in the end (delta: 10.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 1597.17ms. Allocated memory is still 159.4MB. Free memory was 116.5MB in the beginning and 99.7MB in the end (delta: 16.8MB). Peak memory consumption was 71.2MB. Max. memory is 16.1GB. * TraceAbstraction took 11262.18ms. Allocated memory was 159.4MB in the beginning and 312.5MB in the end (delta: 153.1MB). Free memory was 98.6MB in the beginning and 202.4MB in the end (delta: -103.8MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. * Witness Printer took 233.60ms. Allocated memory is still 312.5MB. Free memory was 202.4MB in the beginning and 190.9MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 200]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 144 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.2s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 719 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 719 mSDsluCounter, 864 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 40 mSDsCounter, 454 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3186 IncrementalHoareTripleChecker+Invalid, 3640 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 454 mSolverCounterUnsat, 824 mSDtfsCounter, 3186 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 562 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1115occurred in iteration=8, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 417 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 12 NumberOfFragments, 32 HoareAnnotationTreeSize, 1 FomulaSimplifications, 93 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 152 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 1907 NumberOfCodeBlocks, 1907 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1896 ConstructedInterpolants, 0 QuantifiedInterpolants, 8787 SizeOfPredicates, 0 NumberOfNonLiveVariables, 736 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 1024/1135 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 592]: Loop Invariant Derived loop invariant: (((((a19 <= 6) && (14 == a4)) && (a12 == 0)) || (((a19 == 9) && (14 == a4)) && (a12 == 0))) || (((14 == a4) && (a12 == 0)) && !((a10 == 3)))) RESULT: Ultimate proved your program to be correct! [2023-11-23 22:33:17,888 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5e1c7635-47c4-4c15-bfa6-ad511e3b89f5/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE