./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/eureka_05.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc 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_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/eureka_05.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya --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 3f12ca1e314a03dfb1c8beadd0c1a180c2d2339dd5f3109d5999df06d52395ab --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 02:27:04,013 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 02:27:04,079 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 02:27:04,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 02:27:04,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 02:27:04,108 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 02:27:04,109 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 02:27:04,109 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 02:27:04,110 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 02:27:04,110 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 02:27:04,111 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 02:27:04,111 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 02:27:04,112 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 02:27:04,113 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 02:27:04,113 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 02:27:04,114 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 02:27:04,114 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 02:27:04,115 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 02:27:04,115 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 02:27:04,116 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 02:27:04,116 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 02:27:04,121 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 02:27:04,121 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 02:27:04,122 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 02:27:04,122 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 02:27:04,122 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 02:27:04,123 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 02:27:04,123 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 02:27:04,124 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 02:27:04,124 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 02:27:04,124 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 02:27:04,125 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:27:04,125 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 02:27:04,125 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 02:27:04,125 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 02:27:04,126 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 02:27:04,126 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 02:27:04,126 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 02:27:04,126 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 02:27:04,126 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 02:27:04,126 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 02:27:04,127 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 02:27:04,127 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_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f12ca1e314a03dfb1c8beadd0c1a180c2d2339dd5f3109d5999df06d52395ab [2023-11-29 02:27:04,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 02:27:04,381 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 02:27:04,383 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 02:27:04,385 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 02:27:04,385 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 02:27:04,386 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/loops/eureka_05.i [2023-11-29 02:27:07,154 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 02:27:07,315 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 02:27:07,316 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/sv-benchmarks/c/loops/eureka_05.i [2023-11-29 02:27:07,321 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/data/93325ba1d/0ee9d2c4b47b49aa9b46f5db7021f6c2/FLAGc2a4b2837 [2023-11-29 02:27:07,333 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/data/93325ba1d/0ee9d2c4b47b49aa9b46f5db7021f6c2 [2023-11-29 02:27:07,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 02:27:07,336 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 02:27:07,337 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 02:27:07,337 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 02:27:07,342 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 02:27:07,343 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,343 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dd17346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07, skipping insertion in model container [2023-11-29 02:27:07,344 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,364 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 02:27:07,494 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_01f20353-df48-422b-b9a6-6b711edc38e1/sv-benchmarks/c/loops/eureka_05.i[810,823] [2023-11-29 02:27:07,511 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:27:07,521 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 02:27:07,533 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_01f20353-df48-422b-b9a6-6b711edc38e1/sv-benchmarks/c/loops/eureka_05.i[810,823] [2023-11-29 02:27:07,541 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 02:27:07,555 INFO L206 MainTranslator]: Completed translation [2023-11-29 02:27:07,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07 WrapperNode [2023-11-29 02:27:07,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 02:27:07,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 02:27:07,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 02:27:07,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 02:27:07,563 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,569 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,587 INFO L138 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 83 [2023-11-29 02:27:07,587 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 02:27:07,588 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 02:27:07,588 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 02:27:07,588 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 02:27:07,596 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,597 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,599 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,609 INFO L175 MemorySlicer]: Split 15 memory accesses to 3 slices as follows [2, 11, 2]. 73 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 3 writes are split as follows [0, 2, 1]. [2023-11-29 02:27:07,609 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,609 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,615 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,620 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,621 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,622 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,625 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 02:27:07,626 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 02:27:07,626 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 02:27:07,626 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 02:27:07,627 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (1/1) ... [2023-11-29 02:27:07,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 02:27:07,643 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:07,658 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 02:27:07,661 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 02:27:07,689 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 02:27:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 02:27:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 02:27:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 02:27:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 02:27:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 02:27:07,690 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 02:27:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 02:27:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 02:27:07,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 02:27:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 02:27:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 02:27:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 02:27:07,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 02:27:07,768 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 02:27:07,770 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 02:27:07,881 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 02:27:07,913 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 02:27:07,913 INFO L309 CfgBuilder]: Removed 4 assume(true) statements. [2023-11-29 02:27:07,914 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:27:07 BoogieIcfgContainer [2023-11-29 02:27:07,914 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 02:27:07,916 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 02:27:07,916 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 02:27:07,919 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 02:27:07,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 02:27:07" (1/3) ... [2023-11-29 02:27:07,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc5c75f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:27:07, skipping insertion in model container [2023-11-29 02:27:07,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 02:27:07" (2/3) ... [2023-11-29 02:27:07,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dc5c75f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 02:27:07, skipping insertion in model container [2023-11-29 02:27:07,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:27:07" (3/3) ... [2023-11-29 02:27:07,922 INFO L112 eAbstractionObserver]: Analyzing ICFG eureka_05.i [2023-11-29 02:27:07,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 02:27:07,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-29 02:27:07,978 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 02:27:07,985 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;@56104f66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 02:27:07,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-29 02:27:07,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 15 states have internal predecessors, (25), 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) [2023-11-29 02:27:07,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 02:27:07,994 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:07,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:07,995 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:07,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:07,999 INFO L85 PathProgramCache]: Analyzing trace with hash -831585943, now seen corresponding path program 1 times [2023-11-29 02:27:08,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:08,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840175985] [2023-11-29 02:27:08,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:08,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:08,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:08,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:27:08,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:08,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840175985] [2023-11-29 02:27:08,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840175985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:27:08,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:27:08,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 02:27:08,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445037911] [2023-11-29 02:27:08,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:27:08,189 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 02:27:08,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:08,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 02:27:08,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 02:27:08,219 INFO L87 Difference]: Start difference. First operand has 16 states, 14 states have (on average 1.7857142857142858) internal successors, (25), 15 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:27:08,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:08,269 INFO L93 Difference]: Finished difference Result 31 states and 49 transitions. [2023-11-29 02:27:08,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 02:27:08,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-29 02:27:08,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:08,277 INFO L225 Difference]: With dead ends: 31 [2023-11-29 02:27:08,277 INFO L226 Difference]: Without dead ends: 15 [2023-11-29 02:27:08,279 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 [2023-11-29 02:27:08,283 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:08,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:27:08,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2023-11-29 02:27:08,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2023-11-29 02:27:08,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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) [2023-11-29 02:27:08,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2023-11-29 02:27:08,311 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 8 [2023-11-29 02:27:08,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:08,311 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2023-11-29 02:27:08,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:27:08,311 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2023-11-29 02:27:08,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2023-11-29 02:27:08,312 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:08,312 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:08,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 02:27:08,313 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:08,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:08,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1273734631, now seen corresponding path program 1 times [2023-11-29 02:27:08,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:08,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669008475] [2023-11-29 02:27:08,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:08,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:08,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:27:08,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:08,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669008475] [2023-11-29 02:27:08,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669008475] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:08,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1407935824] [2023-11-29 02:27:08,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:08,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:08,401 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:08,404 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:08,415 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 02:27:08,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:08,485 INFO L262 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 02:27:08,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:08,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:27:08,525 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:27:08,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 02:27:08,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1407935824] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:27:08,561 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:27:08,561 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-29 02:27:08,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75672853] [2023-11-29 02:27:08,562 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:27:08,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:27:08,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:08,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:27:08,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:27:08,564 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:27:08,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:08,613 INFO L93 Difference]: Finished difference Result 35 states and 45 transitions. [2023-11-29 02:27:08,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:27:08,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2023-11-29 02:27:08,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:08,614 INFO L225 Difference]: With dead ends: 35 [2023-11-29 02:27:08,614 INFO L226 Difference]: Without dead ends: 23 [2023-11-29 02:27:08,615 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:27:08,617 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:08,617 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 39 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:27:08,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-29 02:27:08,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2023-11-29 02:27:08,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 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) [2023-11-29 02:27:08,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2023-11-29 02:27:08,624 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 9 [2023-11-29 02:27:08,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:08,624 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2023-11-29 02:27:08,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.0) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:27:08,624 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2023-11-29 02:27:08,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-29 02:27:08,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:08,625 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:08,631 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 02:27:08,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:08,826 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:08,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:08,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1185436311, now seen corresponding path program 2 times [2023-11-29 02:27:08,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:08,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52451558] [2023-11-29 02:27:08,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:08,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:08,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:08,932 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 02:27:08,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:08,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52451558] [2023-11-29 02:27:08,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52451558] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:27:08,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:27:08,934 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 02:27:08,934 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852401150] [2023-11-29 02:27:08,934 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:27:08,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 02:27:08,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:08,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 02:27:08,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:27:08,936 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-29 02:27:08,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:08,965 INFO L93 Difference]: Finished difference Result 29 states and 36 transitions. [2023-11-29 02:27:08,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 02:27:08,966 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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 12 [2023-11-29 02:27:08,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:08,967 INFO L225 Difference]: With dead ends: 29 [2023-11-29 02:27:08,967 INFO L226 Difference]: Without dead ends: 23 [2023-11-29 02:27:08,968 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 02:27:08,969 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 21 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:08,970 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 18 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:27:08,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2023-11-29 02:27:08,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 19. [2023-11-29 02:27:08,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 18 states have internal predecessors, (23), 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) [2023-11-29 02:27:08,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 23 transitions. [2023-11-29 02:27:08,976 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 23 transitions. Word has length 12 [2023-11-29 02:27:08,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:08,976 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 23 transitions. [2023-11-29 02:27:08,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 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) [2023-11-29 02:27:08,976 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 23 transitions. [2023-11-29 02:27:08,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-11-29 02:27:08,977 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:08,977 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:08,977 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 02:27:08,978 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:08,978 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:08,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1895147126, now seen corresponding path program 1 times [2023-11-29 02:27:08,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:08,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722460636] [2023-11-29 02:27:08,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:08,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:09,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:09,098 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-11-29 02:27:09,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:09,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722460636] [2023-11-29 02:27:09,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722460636] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:27:09,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 02:27:09,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 02:27:09,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822880169] [2023-11-29 02:27:09,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:27:09,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 02:27:09,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:09,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 02:27:09,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-29 02:27:09,103 INFO L87 Difference]: Start difference. First operand 19 states and 23 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:27:09,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:09,154 INFO L93 Difference]: Finished difference Result 37 states and 48 transitions. [2023-11-29 02:27:09,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 02:27:09,155 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2023-11-29 02:27:09,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:09,156 INFO L225 Difference]: With dead ends: 37 [2023-11-29 02:27:09,156 INFO L226 Difference]: Without dead ends: 26 [2023-11-29 02:27:09,156 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-11-29 02:27:09,158 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 38 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:09,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 22 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:27:09,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2023-11-29 02:27:09,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 20. [2023-11-29 02:27:09,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 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) [2023-11-29 02:27:09,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2023-11-29 02:27:09,165 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 15 [2023-11-29 02:27:09,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:09,165 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2023-11-29 02:27:09,165 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:27:09,165 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2023-11-29 02:27:09,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 02:27:09,166 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:09,166 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:09,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 02:27:09,167 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:09,167 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:09,167 INFO L85 PathProgramCache]: Analyzing trace with hash 71753960, now seen corresponding path program 1 times [2023-11-29 02:27:09,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:09,168 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [743705580] [2023-11-29 02:27:09,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:09,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:09,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:09,271 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 02:27:09,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:09,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [743705580] [2023-11-29 02:27:09,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [743705580] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:09,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1833808795] [2023-11-29 02:27:09,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:09,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:09,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:09,274 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:09,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 02:27:09,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:09,353 INFO L262 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:27:09,355 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:09,402 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 02:27:09,403 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:27:09,440 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-29 02:27:09,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1833808795] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:27:09,441 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:27:09,441 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 9 [2023-11-29 02:27:09,441 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430439635] [2023-11-29 02:27:09,441 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:27:09,442 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-29 02:27:09,442 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:09,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-29 02:27:09,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2023-11-29 02:27:09,443 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 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) [2023-11-29 02:27:09,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:09,582 INFO L93 Difference]: Finished difference Result 64 states and 77 transitions. [2023-11-29 02:27:09,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 02:27:09,582 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 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 18 [2023-11-29 02:27:09,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:09,583 INFO L225 Difference]: With dead ends: 64 [2023-11-29 02:27:09,583 INFO L226 Difference]: Without dead ends: 50 [2023-11-29 02:27:09,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 26 SyntacticMatches, 4 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2023-11-29 02:27:09,585 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 51 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:09,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 89 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:27:09,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2023-11-29 02:27:09,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 26. [2023-11-29 02:27:09,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 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) [2023-11-29 02:27:09,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 32 transitions. [2023-11-29 02:27:09,592 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 32 transitions. Word has length 18 [2023-11-29 02:27:09,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:09,593 INFO L495 AbstractCegarLoop]: Abstraction has 26 states and 32 transitions. [2023-11-29 02:27:09,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.9) internal successors, (29), 9 states have internal predecessors, (29), 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) [2023-11-29 02:27:09,593 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 32 transitions. [2023-11-29 02:27:09,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2023-11-29 02:27:09,594 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:09,594 INFO L195 NwaCegarLoop]: trace histogram [5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:09,599 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 02:27:09,799 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:09,799 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:09,800 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:09,800 INFO L85 PathProgramCache]: Analyzing trace with hash 1969768187, now seen corresponding path program 2 times [2023-11-29 02:27:09,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:09,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155240919] [2023-11-29 02:27:09,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:09,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:09,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:09,905 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 02:27:09,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:09,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155240919] [2023-11-29 02:27:09,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155240919] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:09,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096420710] [2023-11-29 02:27:09,906 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:27:09,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:09,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:09,907 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:09,909 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 02:27:09,989 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:27:09,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:27:09,991 INFO L262 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 02:27:09,992 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:10,072 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-29 02:27:10,072 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:27:10,152 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-29 02:27:10,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096420710] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:27:10,152 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:27:10,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2023-11-29 02:27:10,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43196272] [2023-11-29 02:27:10,153 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:27:10,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:27:10,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:10,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:27:10,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:27:10,155 INFO L87 Difference]: Start difference. First operand 26 states and 32 transitions. Second operand has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 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) [2023-11-29 02:27:10,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:10,391 INFO L93 Difference]: Finished difference Result 68 states and 96 transitions. [2023-11-29 02:27:10,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:27:10,392 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 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 22 [2023-11-29 02:27:10,392 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:10,393 INFO L225 Difference]: With dead ends: 68 [2023-11-29 02:27:10,393 INFO L226 Difference]: Without dead ends: 55 [2023-11-29 02:27:10,394 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=392, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:27:10,395 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 128 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:10,395 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 30 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:27:10,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2023-11-29 02:27:10,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 51. [2023-11-29 02:27:10,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.3) internal successors, (65), 50 states have internal predecessors, (65), 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) [2023-11-29 02:27:10,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 65 transitions. [2023-11-29 02:27:10,407 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 65 transitions. Word has length 22 [2023-11-29 02:27:10,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:10,407 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 65 transitions. [2023-11-29 02:27:10,408 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6923076923076925) internal successors, (35), 12 states have internal predecessors, (35), 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) [2023-11-29 02:27:10,408 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 65 transitions. [2023-11-29 02:27:10,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-29 02:27:10,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:10,409 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:10,415 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 02:27:10,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:10,610 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:10,611 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:10,611 INFO L85 PathProgramCache]: Analyzing trace with hash 2011435034, now seen corresponding path program 3 times [2023-11-29 02:27:10,611 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:10,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034804281] [2023-11-29 02:27:10,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:10,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:10,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:10,750 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-29 02:27:10,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:10,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034804281] [2023-11-29 02:27:10,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034804281] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:10,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974426120] [2023-11-29 02:27:10,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:27:10,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:10,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:10,752 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:10,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 02:27:10,835 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 02:27:10,835 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:27:10,836 INFO L262 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2023-11-29 02:27:10,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:10,871 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-11-29 02:27:11,017 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 02:27:11,017 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:27:11,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974426120] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:27:11,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:27:11,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 11 [2023-11-29 02:27:11,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128414777] [2023-11-29 02:27:11,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:27:11,018 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 02:27:11,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:11,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 02:27:11,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2023-11-29 02:27:11,020 INFO L87 Difference]: Start difference. First operand 51 states and 65 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2023-11-29 02:27:11,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:11,093 INFO L93 Difference]: Finished difference Result 56 states and 70 transitions. [2023-11-29 02:27:11,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 02:27:11,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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 49 [2023-11-29 02:27:11,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:11,094 INFO L225 Difference]: With dead ends: 56 [2023-11-29 02:27:11,095 INFO L226 Difference]: Without dead ends: 54 [2023-11-29 02:27:11,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=116, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:27:11,096 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 26 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:11,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 32 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:27:11,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2023-11-29 02:27:11,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 53. [2023-11-29 02:27:11,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 52 states have (on average 1.2884615384615385) internal successors, (67), 52 states have internal predecessors, (67), 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) [2023-11-29 02:27:11,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 67 transitions. [2023-11-29 02:27:11,113 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 67 transitions. Word has length 49 [2023-11-29 02:27:11,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:11,113 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 67 transitions. [2023-11-29 02:27:11,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 6 states have internal predecessors, (16), 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) [2023-11-29 02:27:11,114 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 67 transitions. [2023-11-29 02:27:11,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-11-29 02:27:11,115 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:11,115 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:11,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-29 02:27:11,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:11,321 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:11,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:11,321 INFO L85 PathProgramCache]: Analyzing trace with hash -717345774, now seen corresponding path program 1 times [2023-11-29 02:27:11,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:11,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643801041] [2023-11-29 02:27:11,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:11,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:11,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:11,459 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-29 02:27:11,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:11,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643801041] [2023-11-29 02:27:11,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643801041] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:11,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1820299550] [2023-11-29 02:27:11,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:11,460 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:11,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:11,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:11,464 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 02:27:11,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:11,562 INFO L262 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 02:27:11,564 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:11,769 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-29 02:27:11,769 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:27:11,880 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 108 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2023-11-29 02:27:11,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1820299550] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:27:11,881 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:27:11,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-11-29 02:27:11,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041409148] [2023-11-29 02:27:11,881 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:27:11,882 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 02:27:11,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:11,883 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 02:27:11,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=89, Unknown=0, NotChecked=0, Total=156 [2023-11-29 02:27:11,883 INFO L87 Difference]: Start difference. First operand 53 states and 67 transitions. Second operand has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 12 states have internal predecessors, (60), 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) [2023-11-29 02:27:11,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:11,965 INFO L93 Difference]: Finished difference Result 71 states and 91 transitions. [2023-11-29 02:27:11,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:27:11,965 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 12 states have internal predecessors, (60), 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 52 [2023-11-29 02:27:11,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:11,967 INFO L225 Difference]: With dead ends: 71 [2023-11-29 02:27:11,967 INFO L226 Difference]: Without dead ends: 63 [2023-11-29 02:27:11,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 94 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=105, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:27:11,968 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 45 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:11,969 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 50 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:27:11,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-29 02:27:11,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-29 02:27:11,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 62 states have (on average 1.3064516129032258) internal successors, (81), 62 states have internal predecessors, (81), 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) [2023-11-29 02:27:11,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 81 transitions. [2023-11-29 02:27:11,987 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 81 transitions. Word has length 52 [2023-11-29 02:27:11,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:11,987 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 81 transitions. [2023-11-29 02:27:11,987 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 4.615384615384615) internal successors, (60), 12 states have internal predecessors, (60), 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) [2023-11-29 02:27:11,987 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 81 transitions. [2023-11-29 02:27:11,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-29 02:27:11,988 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:11,989 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:11,993 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 02:27:12,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:12,193 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:12,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:12,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1920110706, now seen corresponding path program 2 times [2023-11-29 02:27:12,193 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:12,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456334786] [2023-11-29 02:27:12,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:12,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:12,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:12,365 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 27 proven. 120 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-29 02:27:12,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:12,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456334786] [2023-11-29 02:27:12,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456334786] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:12,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1103414469] [2023-11-29 02:27:12,365 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:27:12,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:12,366 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:12,366 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:12,369 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 02:27:12,480 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:27:12,480 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:27:12,482 INFO L262 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:27:12,485 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:12,671 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 27 proven. 120 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-29 02:27:12,671 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:27:12,770 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 27 proven. 120 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2023-11-29 02:27:12,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1103414469] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:27:12,771 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:27:12,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2023-11-29 02:27:12,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126854679] [2023-11-29 02:27:12,771 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:27:12,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 02:27:12,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:12,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 02:27:12,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-29 02:27:12,773 INFO L87 Difference]: Start difference. First operand 63 states and 81 transitions. Second operand has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 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) [2023-11-29 02:27:12,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:12,954 INFO L93 Difference]: Finished difference Result 81 states and 104 transitions. [2023-11-29 02:27:12,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 02:27:12,954 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 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 58 [2023-11-29 02:27:12,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:12,955 INFO L225 Difference]: With dead ends: 81 [2023-11-29 02:27:12,956 INFO L226 Difference]: Without dead ends: 66 [2023-11-29 02:27:12,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 104 SyntacticMatches, 5 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=175, Invalid=331, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:27:12,957 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 75 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:12,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 40 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 02:27:12,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2023-11-29 02:27:12,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2023-11-29 02:27:12,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 63 states have (on average 1.3015873015873016) internal successors, (82), 63 states have internal predecessors, (82), 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) [2023-11-29 02:27:12,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 82 transitions. [2023-11-29 02:27:12,973 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 82 transitions. Word has length 58 [2023-11-29 02:27:12,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:12,974 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 82 transitions. [2023-11-29 02:27:12,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.428571428571429) internal successors, (62), 13 states have internal predecessors, (62), 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) [2023-11-29 02:27:12,974 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2023-11-29 02:27:12,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 02:27:12,975 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:12,976 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:12,982 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 02:27:13,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:13,182 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:13,183 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:13,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1527735826, now seen corresponding path program 3 times [2023-11-29 02:27:13,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:13,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930899433] [2023-11-29 02:27:13,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:13,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:13,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:14,448 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 115 proven. 32 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-11-29 02:27:14,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:14,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930899433] [2023-11-29 02:27:14,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930899433] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:14,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86516821] [2023-11-29 02:27:14,449 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:27:14,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:14,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:14,450 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:14,456 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 02:27:14,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-11-29 02:27:14,555 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:27:14,556 INFO L262 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 02:27:14,562 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:14,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2023-11-29 02:27:14,590 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 29 [2023-11-29 02:27:14,947 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-11-29 02:27:14,947 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:27:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2023-11-29 02:27:15,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86516821] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:27:15,160 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:27:15,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 23 [2023-11-29 02:27:15,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353602504] [2023-11-29 02:27:15,161 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:27:15,161 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-11-29 02:27:15,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:15,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-11-29 02:27:15,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2023-11-29 02:27:15,163 INFO L87 Difference]: Start difference. First operand 64 states and 82 transitions. Second operand has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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) [2023-11-29 02:27:16,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:16,359 INFO L93 Difference]: Finished difference Result 125 states and 162 transitions. [2023-11-29 02:27:16,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 02:27:16,360 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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 [2023-11-29 02:27:16,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:16,360 INFO L225 Difference]: With dead ends: 125 [2023-11-29 02:27:16,361 INFO L226 Difference]: Without dead ends: 87 [2023-11-29 02:27:16,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 357 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=351, Invalid=1371, Unknown=0, NotChecked=0, Total=1722 [2023-11-29 02:27:16,362 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 169 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:16,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 118 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 02:27:16,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2023-11-29 02:27:16,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 75. [2023-11-29 02:27:16,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.2972972972972974) internal successors, (96), 74 states have internal predecessors, (96), 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) [2023-11-29 02:27:16,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2023-11-29 02:27:16,386 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 61 [2023-11-29 02:27:16,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:16,386 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2023-11-29 02:27:16,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.0869565217391304) internal successors, (71), 23 states have internal predecessors, (71), 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) [2023-11-29 02:27:16,387 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2023-11-29 02:27:16,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 02:27:16,388 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:16,388 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 9, 5, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:16,393 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 02:27:16,589 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-11-29 02:27:16,590 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:16,590 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:16,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1464426908, now seen corresponding path program 1 times [2023-11-29 02:27:16,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:16,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830092280] [2023-11-29 02:27:16,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:16,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:17,012 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2023-11-29 02:27:17,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:17,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830092280] [2023-11-29 02:27:17,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830092280] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:17,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [756928349] [2023-11-29 02:27:17,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:17,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:17,014 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:17,015 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:17,017 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 02:27:17,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:17,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 32 conjunts are in the unsatisfiable core [2023-11-29 02:27:17,140 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:17,509 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:27:17,509 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 18 [2023-11-29 02:27:17,537 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 78 proven. 19 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-29 02:27:17,537 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:27:17,918 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 81 proven. 4 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2023-11-29 02:27:17,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [756928349] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:27:17,919 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:27:17,919 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 10] total 28 [2023-11-29 02:27:17,920 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366269895] [2023-11-29 02:27:17,920 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:27:17,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 02:27:17,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:17,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 02:27:17,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812 [2023-11-29 02:27:17,923 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 29 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 28 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:27:18,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:18,580 INFO L93 Difference]: Finished difference Result 153 states and 194 transitions. [2023-11-29 02:27:18,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-11-29 02:27:18,581 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 28 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 64 [2023-11-29 02:27:18,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:18,582 INFO L225 Difference]: With dead ends: 153 [2023-11-29 02:27:18,583 INFO L226 Difference]: Without dead ends: 92 [2023-11-29 02:27:18,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=346, Invalid=1546, Unknown=0, NotChecked=0, Total=1892 [2023-11-29 02:27:18,585 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 84 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:18,585 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [84 Valid, 101 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:27:18,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2023-11-29 02:27:18,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 81. [2023-11-29 02:27:18,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 80 states have (on average 1.275) internal successors, (102), 80 states have internal predecessors, (102), 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) [2023-11-29 02:27:18,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 102 transitions. [2023-11-29 02:27:18,605 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 102 transitions. Word has length 64 [2023-11-29 02:27:18,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:18,605 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 102 transitions. [2023-11-29 02:27:18,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 28 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:27:18,605 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 102 transitions. [2023-11-29 02:27:18,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 02:27:18,606 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:18,606 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 7, 5, 5, 5, 5, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:18,611 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 02:27:18,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:18,807 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:18,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:18,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1375002844, now seen corresponding path program 2 times [2023-11-29 02:27:18,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:18,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384094754] [2023-11-29 02:27:18,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:18,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:18,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 109 proven. 91 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2023-11-29 02:27:19,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:19,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384094754] [2023-11-29 02:27:19,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384094754] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:19,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [878833621] [2023-11-29 02:27:19,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 02:27:19,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:19,910 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:19,911 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:19,924 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 02:27:20,035 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 02:27:20,035 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:27:20,037 INFO L262 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 20 conjunts are in the unsatisfiable core [2023-11-29 02:27:20,039 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:20,460 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:27:20,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 44 treesize of output 32 [2023-11-29 02:27:20,524 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 94 proven. 15 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-11-29 02:27:20,524 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:27:20,985 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 94 proven. 15 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2023-11-29 02:27:20,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [878833621] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:27:20,986 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:27:20,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 10, 10] total 37 [2023-11-29 02:27:20,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651181636] [2023-11-29 02:27:20,986 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:27:20,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-11-29 02:27:20,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:20,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-11-29 02:27:20,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1278, Unknown=0, NotChecked=0, Total=1406 [2023-11-29 02:27:20,988 INFO L87 Difference]: Start difference. First operand 81 states and 102 transitions. Second operand has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 37 states have internal predecessors, (80), 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) [2023-11-29 02:27:22,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:22,519 INFO L93 Difference]: Finished difference Result 194 states and 245 transitions. [2023-11-29 02:27:22,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2023-11-29 02:27:22,520 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 37 states have internal predecessors, (80), 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 64 [2023-11-29 02:27:22,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:22,521 INFO L225 Difference]: With dead ends: 194 [2023-11-29 02:27:22,521 INFO L226 Difference]: Without dead ends: 139 [2023-11-29 02:27:22,522 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1016 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=527, Invalid=4029, Unknown=0, NotChecked=0, Total=4556 [2023-11-29 02:27:22,523 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 175 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 1093 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 272 SdHoareTripleChecker+Invalid, 1113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:22,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 272 Invalid, 1113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1093 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 02:27:22,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-29 02:27:22,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 117. [2023-11-29 02:27:22,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 116 states have (on average 1.2672413793103448) internal successors, (147), 116 states have internal predecessors, (147), 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) [2023-11-29 02:27:22,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 147 transitions. [2023-11-29 02:27:22,551 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 147 transitions. Word has length 64 [2023-11-29 02:27:22,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:22,551 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 147 transitions. [2023-11-29 02:27:22,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.1052631578947367) internal successors, (80), 37 states have internal predecessors, (80), 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) [2023-11-29 02:27:22,551 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 147 transitions. [2023-11-29 02:27:22,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-29 02:27:22,553 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:22,553 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 5, 5, 5, 5, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:22,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 02:27:22,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 02:27:22,754 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:22,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:22,754 INFO L85 PathProgramCache]: Analyzing trace with hash 1742117086, now seen corresponding path program 3 times [2023-11-29 02:27:22,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:22,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019434474] [2023-11-29 02:27:22,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:22,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:23,324 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 1 proven. 26 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-11-29 02:27:23,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:23,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019434474] [2023-11-29 02:27:23,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019434474] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:23,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025627713] [2023-11-29 02:27:23,325 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 02:27:23,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:23,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:23,326 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:23,345 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 02:27:23,452 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2023-11-29 02:27:23,452 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:27:23,454 INFO L262 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 33 conjunts are in the unsatisfiable core [2023-11-29 02:27:23,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:23,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-29 02:27:23,521 INFO L349 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2023-11-29 02:27:23,521 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 20 [2023-11-29 02:27:23,581 INFO L349 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2023-11-29 02:27:23,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 30 treesize of output 32 [2023-11-29 02:27:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2023-11-29 02:27:24,253 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:27:24,492 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 14 [2023-11-29 02:27:24,494 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2023-11-29 02:27:24,537 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 02:27:24,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025627713] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:27:24,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:27:24,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 30 [2023-11-29 02:27:24,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172650261] [2023-11-29 02:27:24,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:27:24,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2023-11-29 02:27:24,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:24,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2023-11-29 02:27:24,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=772, Unknown=0, NotChecked=0, Total=930 [2023-11-29 02:27:24,539 INFO L87 Difference]: Start difference. First operand 117 states and 147 transitions. Second operand has 31 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 30 states have internal predecessors, (76), 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) [2023-11-29 02:27:25,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:27:25,198 INFO L93 Difference]: Finished difference Result 133 states and 163 transitions. [2023-11-29 02:27:25,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-29 02:27:25,199 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 30 states have internal predecessors, (76), 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 64 [2023-11-29 02:27:25,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:27:25,200 INFO L225 Difference]: With dead ends: 133 [2023-11-29 02:27:25,200 INFO L226 Difference]: Without dead ends: 131 [2023-11-29 02:27:25,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 107 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=404, Invalid=1852, Unknown=0, NotChecked=0, Total=2256 [2023-11-29 02:27:25,202 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 140 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 02:27:25,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 211 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 02:27:25,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2023-11-29 02:27:25,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 120. [2023-11-29 02:27:25,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.2605042016806722) internal successors, (150), 119 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 02:27:25,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 150 transitions. [2023-11-29 02:27:25,253 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 150 transitions. Word has length 64 [2023-11-29 02:27:25,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:27:25,253 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 150 transitions. [2023-11-29 02:27:25,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 30 states have internal predecessors, (76), 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) [2023-11-29 02:27:25,254 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 150 transitions. [2023-11-29 02:27:25,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 02:27:25,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:27:25,255 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 5, 5, 5, 5, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:27:25,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 02:27:25,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 02:27:25,455 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:27:25,456 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:27:25,456 INFO L85 PathProgramCache]: Analyzing trace with hash -969425714, now seen corresponding path program 4 times [2023-11-29 02:27:25,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:27:25,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401531098] [2023-11-29 02:27:25,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:27:25,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:27:25,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:27:27,012 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 6 proven. 178 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2023-11-29 02:27:27,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:27:27,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401531098] [2023-11-29 02:27:27,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401531098] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:27:27,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364710526] [2023-11-29 02:27:27,013 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 02:27:27,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:27:27,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:27:27,014 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:27:27,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 02:27:27,105 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 02:27:27,105 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:27:27,106 INFO L262 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 41 conjunts are in the unsatisfiable core [2023-11-29 02:27:27,109 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:27:27,505 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:27:27,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 63 treesize of output 33 [2023-11-29 02:27:27,670 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:27:27,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 12 [2023-11-29 02:27:27,709 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 84 proven. 122 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2023-11-29 02:27:27,709 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:27:32,142 WARN L854 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_SelectionSort_~temp~0#1_60| Int)) (let ((.cse3 (* |c_ULTIMATE.start_SelectionSort_~lh~0#1| 4))) (let ((.cse1 (+ .cse3 |c_~#array~0.offset|)) (.cse0 (select |c_#memory_int#1| |c_~#array~0.base|))) (or (< |v_ULTIMATE.start_SelectionSort_~temp~0#1_60| (select .cse0 .cse1)) (let ((.cse2 (let ((.cse4 (+ |c_~#array~0.offset| 4 (* |c_ULTIMATE.start_SelectionSort_~i~0#1| 4)))) (store (store .cse0 .cse1 (select .cse0 .cse4)) .cse4 |v_ULTIMATE.start_SelectionSort_~temp~0#1_60|)))) (< (select .cse2 (+ .cse3 |c_~#array~0.offset| 4)) (+ (select .cse2 (+ .cse3 |c_~#array~0.offset| 12)) 1))))))) is different from false [2023-11-29 02:27:32,370 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 90 [2023-11-29 02:27:32,433 INFO L349 Elim1Store]: treesize reduction 5, result has 92.3 percent of original size [2023-11-29 02:27:32,433 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 110 treesize of output 123 [2023-11-29 02:27:32,874 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 154 proven. 18 refuted. 0 times theorem prover too weak. 66 trivial. 12 not checked. [2023-11-29 02:27:32,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364710526] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:27:32,874 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:27:32,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17, 12] total 47 [2023-11-29 02:27:32,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986338812] [2023-11-29 02:27:32,875 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:27:32,875 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2023-11-29 02:27:32,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:27:32,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2023-11-29 02:27:32,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=132, Invalid=1941, Unknown=1, NotChecked=88, Total=2162 [2023-11-29 02:27:32,877 INFO L87 Difference]: Start difference. First operand 120 states and 150 transitions. Second operand has 47 states, 47 states have (on average 2.382978723404255) internal successors, (112), 47 states have internal predecessors, (112), 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) [2023-11-29 02:27:54,256 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:27:59,604 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:28:57,553 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:29:01,568 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:29:10,595 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse11 (* |c_ULTIMATE.start_SelectionSort_~lh~0#1| 4))) (let ((.cse7 (+ |c_~#array~0.offset| (* |c_ULTIMATE.start_SelectionSort_~i~0#1| 4))) (.cse10 (+ (* |c_ULTIMATE.start_SelectionSort_~rh~0#1| 4) |c_~#array~0.offset|)) (.cse4 (select |c_#memory_int#1| |c_~#array~0.base|)) (.cse5 (+ .cse11 |c_~#array~0.offset|))) (let ((.cse2 (+ .cse11 |c_~#array~0.offset| 4)) (.cse3 (+ .cse11 |c_~#array~0.offset| 12)) (.cse0 (select .cse4 .cse5)) (.cse9 (select .cse4 .cse10)) (.cse6 (select .cse4 .cse7))) (and (or (and (= (+ |c_ULTIMATE.start_SelectionSort_~lh~0#1| 1) |c_ULTIMATE.start_SelectionSort_~i~0#1|) (= |c_ULTIMATE.start_SelectionSort_~rh~0#1| |c_ULTIMATE.start_SelectionSort_~lh~0#1|)) (= |c_ULTIMATE.start_SelectionSort_~rh~0#1| |c_ULTIMATE.start_SelectionSort_~i~0#1|)) (forall ((|v_ULTIMATE.start_SelectionSort_~temp~0#1_60| Int)) (or (< |v_ULTIMATE.start_SelectionSort_~temp~0#1_60| .cse0) (let ((.cse1 (store (store .cse4 .cse5 .cse6) .cse7 |v_ULTIMATE.start_SelectionSort_~temp~0#1_60|))) (< (select .cse1 .cse2) (+ (select .cse1 .cse3) 1))))) (not (= (select (select |c_#memory_int#2| |c_ULTIMATE.start_main_~#array~1#1.base|) 0) 0)) (forall ((|v_ULTIMATE.start_SelectionSort_~temp~0#1_60| Int)) (or (let ((.cse8 (store (store .cse4 .cse5 .cse9) .cse10 |v_ULTIMATE.start_SelectionSort_~temp~0#1_60|))) (< (select .cse8 .cse2) (+ (select .cse8 .cse3) 1))) (< |v_ULTIMATE.start_SelectionSort_~temp~0#1_60| .cse0))) (< .cse9 (+ .cse6 1)) (= |c_ULTIMATE.start_main_~#array~1#1.offset| 0))))) is different from false [2023-11-29 02:29:11,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:29:11,279 INFO L93 Difference]: Finished difference Result 658 states and 894 transitions. [2023-11-29 02:29:11,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 132 states. [2023-11-29 02:29:11,280 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 2.382978723404255) internal successors, (112), 47 states have internal predecessors, (112), 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 67 [2023-11-29 02:29:11,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:29:11,282 INFO L225 Difference]: With dead ends: 658 [2023-11-29 02:29:11,282 INFO L226 Difference]: Without dead ends: 397 [2023-11-29 02:29:11,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 274 GetRequests, 112 SyntacticMatches, 4 SemanticMatches, 158 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 7746 ImplicationChecksByTransitivity, 85.1s TimeCoverageRelationStatistics Valid=1844, Invalid=22955, Unknown=15, NotChecked=626, Total=25440 [2023-11-29 02:29:11,304 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 411 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 2422 mSolverCounterSat, 52 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 411 SdHoareTripleChecker+Valid, 285 SdHoareTripleChecker+Invalid, 3051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2422 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 573 IncrementalHoareTripleChecker+Unchecked, 18.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:29:11,304 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [411 Valid, 285 Invalid, 3051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2422 Invalid, 4 Unknown, 573 Unchecked, 18.5s Time] [2023-11-29 02:29:11,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2023-11-29 02:29:11,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 284. [2023-11-29 02:29:11,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 1.3710247349823321) internal successors, (388), 283 states have internal predecessors, (388), 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) [2023-11-29 02:29:11,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 388 transitions. [2023-11-29 02:29:11,421 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 388 transitions. Word has length 67 [2023-11-29 02:29:11,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:29:11,421 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 388 transitions. [2023-11-29 02:29:11,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 2.382978723404255) internal successors, (112), 47 states have internal predecessors, (112), 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) [2023-11-29 02:29:11,422 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 388 transitions. [2023-11-29 02:29:11,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-29 02:29:11,423 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:29:11,423 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 5, 5, 5, 5, 5, 5, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:29:11,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 02:29:11,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2023-11-29 02:29:11,623 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:29:11,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:29:11,624 INFO L85 PathProgramCache]: Analyzing trace with hash 536803280, now seen corresponding path program 5 times [2023-11-29 02:29:11,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:29:11,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387449023] [2023-11-29 02:29:11,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:11,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:29:11,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:29:12,324 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 2 proven. 28 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2023-11-29 02:29:12,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:29:12,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387449023] [2023-11-29 02:29:12,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387449023] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:29:12,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143131335] [2023-11-29 02:29:12,325 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 02:29:12,325 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:29:12,325 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:29:12,326 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:29:12,328 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 02:29:12,415 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2023-11-29 02:29:12,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:29:12,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 37 conjunts are in the unsatisfiable core [2023-11-29 02:29:12,419 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:29:12,764 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:29:12,765 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 86 treesize of output 41 [2023-11-29 02:29:12,853 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 02:29:12,853 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 12 [2023-11-29 02:29:12,883 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 159 proven. 28 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-29 02:29:12,883 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:29:21,960 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 104 treesize of output 90 [2023-11-29 02:29:22,033 INFO L349 Elim1Store]: treesize reduction 5, result has 92.3 percent of original size [2023-11-29 02:29:22,033 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 102 treesize of output 115 [2023-11-29 02:29:22,426 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 159 proven. 18 refuted. 0 times theorem prover too weak. 73 trivial. 0 not checked. [2023-11-29 02:29:22,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143131335] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:29:22,426 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:29:22,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 16, 14] total 39 [2023-11-29 02:29:22,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632226276] [2023-11-29 02:29:22,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:29:22,427 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2023-11-29 02:29:22,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:29:22,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2023-11-29 02:29:22,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=153, Invalid=1328, Unknown=1, NotChecked=0, Total=1482 [2023-11-29 02:29:22,428 INFO L87 Difference]: Start difference. First operand 284 states and 388 transitions. Second operand has 39 states, 39 states have (on average 2.230769230769231) internal successors, (87), 39 states have internal predecessors, (87), 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) [2023-11-29 02:29:29,190 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:29:33,806 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:29:37,835 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:29:42,063 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:29:46,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2023-11-29 02:29:46,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:29:46,831 INFO L93 Difference]: Finished difference Result 513 states and 696 transitions. [2023-11-29 02:29:46,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-29 02:29:46,831 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 2.230769230769231) internal successors, (87), 39 states have internal predecessors, (87), 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 67 [2023-11-29 02:29:46,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:29:46,833 INFO L225 Difference]: With dead ends: 513 [2023-11-29 02:29:46,833 INFO L226 Difference]: Without dead ends: 434 [2023-11-29 02:29:46,836 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1338 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=798, Invalid=5521, Unknown=1, NotChecked=0, Total=6320 [2023-11-29 02:29:46,836 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 100 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 1292 mSolverCounterSat, 34 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 1292 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2023-11-29 02:29:46,837 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 190 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 1292 Invalid, 5 Unknown, 0 Unchecked, 21.5s Time] [2023-11-29 02:29:46,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states. [2023-11-29 02:29:46,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 315. [2023-11-29 02:29:46,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.375796178343949) internal successors, (432), 314 states have internal predecessors, (432), 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) [2023-11-29 02:29:46,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 432 transitions. [2023-11-29 02:29:46,948 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 432 transitions. Word has length 67 [2023-11-29 02:29:46,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:29:46,948 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 432 transitions. [2023-11-29 02:29:46,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.230769230769231) internal successors, (87), 39 states have internal predecessors, (87), 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) [2023-11-29 02:29:46,948 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 432 transitions. [2023-11-29 02:29:46,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-29 02:29:46,949 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:29:46,949 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 5, 5, 5, 5, 5, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:29:46,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 02:29:47,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 02:29:47,150 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:29:47,150 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:29:47,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1676155038, now seen corresponding path program 6 times [2023-11-29 02:29:47,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:29:47,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503198073] [2023-11-29 02:29:47,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:47,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:29:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:29:48,031 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 4 proven. 42 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2023-11-29 02:29:48,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:29:48,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503198073] [2023-11-29 02:29:48,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503198073] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:29:48,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1546626131] [2023-11-29 02:29:48,031 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 02:29:48,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:29:48,031 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:29:48,032 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:29:48,035 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 02:29:48,122 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2023-11-29 02:29:48,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 02:29:48,124 INFO L262 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 02:29:48,125 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:29:48,462 INFO L349 Elim1Store]: treesize reduction 56, result has 40.4 percent of original size [2023-11-29 02:29:48,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 44 treesize of output 56 [2023-11-29 02:29:48,700 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 115 proven. 10 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:29:48,700 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 02:29:48,984 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 115 proven. 10 refuted. 0 times theorem prover too weak. 136 trivial. 0 not checked. [2023-11-29 02:29:48,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1546626131] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 02:29:48,984 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 02:29:48,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6, 6] total 24 [2023-11-29 02:29:48,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058682378] [2023-11-29 02:29:48,984 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 02:29:48,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 02:29:48,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:29:48,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 02:29:48,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=529, Unknown=0, NotChecked=0, Total=600 [2023-11-29 02:29:48,985 INFO L87 Difference]: Start difference. First operand 315 states and 432 transitions. Second operand has 25 states, 25 states have (on average 2.96) internal successors, (74), 24 states have internal predecessors, (74), 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) [2023-11-29 02:29:50,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:29:50,563 INFO L93 Difference]: Finished difference Result 451 states and 617 transitions. [2023-11-29 02:29:50,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-29 02:29:50,564 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.96) internal successors, (74), 24 states have internal predecessors, (74), 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 70 [2023-11-29 02:29:50,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:29:50,565 INFO L225 Difference]: With dead ends: 451 [2023-11-29 02:29:50,565 INFO L226 Difference]: Without dead ends: 197 [2023-11-29 02:29:50,566 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=410, Invalid=1942, Unknown=0, NotChecked=0, Total=2352 [2023-11-29 02:29:50,566 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 190 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 397 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 02:29:50,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 154 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 397 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 02:29:50,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2023-11-29 02:29:50,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 173. [2023-11-29 02:29:50,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 172 states have (on average 1.3430232558139534) internal successors, (231), 172 states have internal predecessors, (231), 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) [2023-11-29 02:29:50,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 231 transitions. [2023-11-29 02:29:50,628 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 231 transitions. Word has length 70 [2023-11-29 02:29:50,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:29:50,628 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 231 transitions. [2023-11-29 02:29:50,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.96) internal successors, (74), 24 states have internal predecessors, (74), 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) [2023-11-29 02:29:50,629 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 231 transitions. [2023-11-29 02:29:50,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2023-11-29 02:29:50,629 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 02:29:50,629 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 6, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 02:29:50,635 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 02:29:50,829 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 02:29:50,830 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 02:29:50,830 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 02:29:50,830 INFO L85 PathProgramCache]: Analyzing trace with hash 217032980, now seen corresponding path program 7 times [2023-11-29 02:29:50,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 02:29:50,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273031548] [2023-11-29 02:29:50,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 02:29:50,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 02:29:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:29:50,961 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 27 proven. 13 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 02:29:50,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 02:29:50,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273031548] [2023-11-29 02:29:50,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273031548] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 02:29:50,961 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500089159] [2023-11-29 02:29:50,961 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 02:29:50,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 02:29:50,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 02:29:50,962 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 02:29:50,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 02:29:51,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 02:29:51,103 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 02:29:51,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 02:29:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 275 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2023-11-29 02:29:51,138 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 02:29:51,138 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500089159] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 02:29:51,138 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 02:29:51,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 9 [2023-11-29 02:29:51,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484745301] [2023-11-29 02:29:51,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 02:29:51,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 02:29:51,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 02:29:51,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 02:29:51,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:29:51,140 INFO L87 Difference]: Start difference. First operand 173 states and 231 transitions. Second operand has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2023-11-29 02:29:51,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 02:29:51,262 INFO L93 Difference]: Finished difference Result 175 states and 233 transitions. [2023-11-29 02:29:51,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 02:29:51,262 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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 73 [2023-11-29 02:29:51,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 02:29:51,263 INFO L225 Difference]: With dead ends: 175 [2023-11-29 02:29:51,263 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 02:29:51,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2023-11-29 02:29:51,264 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 0 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 02:29:51,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 45 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 02:29:51,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 02:29:51,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 02:29:51,265 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) [2023-11-29 02:29:51,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 02:29:51,265 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 73 [2023-11-29 02:29:51,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 02:29:51,265 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 02:29:51,266 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 3.875) internal successors, (31), 8 states have internal predecessors, (31), 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) [2023-11-29 02:29:51,266 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 02:29:51,266 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 02:29:51,268 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-11-29 02:29:51,273 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 02:29:51,468 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 02:29:51,470 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 02:29:59,782 INFO L899 garLoopResultBuilder]: For program point L15(lines 15 17) no Hoare annotation was computed. [2023-11-29 02:29:59,782 INFO L899 garLoopResultBuilder]: For program point L15-2(lines 14 19) no Hoare annotation was computed. [2023-11-29 02:29:59,783 INFO L895 garLoopResultBuilder]: At program point L44-3(lines 44 45) the Hoare annotation is: (let ((.cse14 (select |#memory_int#1| |~#array~0.base|)) (.cse12 (select |#memory_int#2| |ULTIMATE.start_main_~#array~1#1.base|))) (let ((.cse6 (= (select .cse12 8) 2)) (.cse0 (= (select .cse12 12) 3)) (.cse1 (<= 5 ~n~0)) (.cse2 (= (select .cse12 16) 4)) (.cse3 (= |~#array~0.offset| 0)) (.cse4 (= (select .cse14 0) 0)) (.cse5 (<= 0 (select .cse14 12))) (.cse7 (= |ULTIMATE.start_main_~#array~1#1.offset| 0)) (.cse8 (= (select .cse14 4) 0)) (.cse9 (= (select .cse14 8) 0)) (.cse10 (= (select .cse14 16) 0))) (or (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 1) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) (let ((.cse11 (store .cse12 (* |ULTIMATE.start_main_~i~1#1| 4) |ULTIMATE.start_main_~i~1#1|))) (and .cse1 (<= |ULTIMATE.start_main_~i~1#1| 0) .cse3 (= 3 (select .cse11 12)) .cse4 .cse5 (exists ((v_arrayElimCell_1 Int)) (let ((.cse13 (* v_arrayElimCell_1 4))) (and (= v_arrayElimCell_1 (+ (select .cse12 (+ .cse13 (- 4))) 1)) (<= 1 v_arrayElimCell_1) (= (select .cse12 .cse13) v_arrayElimCell_1) (<= v_arrayElimCell_1 (+ 2 |ULTIMATE.start_main_~i~1#1|))))) .cse6 .cse7 .cse8 (= (select .cse11 16) 4) .cse9 .cse10)) (and .cse1 .cse3 .cse4 .cse5 .cse7 .cse8 (= |ULTIMATE.start_main_~i~1#1| 4) .cse9 .cse10) (and (= 3 |ULTIMATE.start_main_~i~1#1|) .cse1 .cse2 .cse3 .cse4 .cse5 .cse7 .cse8 .cse9 .cse10) (and .cse0 .cse1 .cse2 .cse3 (= 2 |ULTIMATE.start_main_~i~1#1|) .cse4 .cse5 .cse7 .cse8 .cse9 .cse10)))) [2023-11-29 02:29:59,783 INFO L899 garLoopResultBuilder]: For program point L44-4(lines 44 45) no Hoare annotation was computed. [2023-11-29 02:29:59,783 INFO L899 garLoopResultBuilder]: For program point L32-2(lines 32 33) no Hoare annotation was computed. [2023-11-29 02:29:59,783 INFO L895 garLoopResultBuilder]: At program point L32-3(lines 32 33) the Hoare annotation is: (let ((.cse0 (select |#memory_int#2| |ULTIMATE.start_main_~#array~1#1.base|))) (let ((.cse1 (store .cse0 (* |ULTIMATE.start_main_~i~1#1| 4) |ULTIMATE.start_main_~i~1#1|))) (and (= (select .cse0 4) 1) (<= (+ |ULTIMATE.start_SelectionSort_~lh~0#1| 1) ~n~0) (<= 5 ~n~0) (= (select .cse0 0) 0) (<= |ULTIMATE.start_main_~i~1#1| 1) (<= |ULTIMATE.start_SelectionSort_~i~0#1| ~n~0) (= |~#array~0.offset| 0) (= 3 (select .cse1 12)) (exists ((v_arrayElimCell_1 Int)) (let ((.cse2 (* v_arrayElimCell_1 4))) (and (= v_arrayElimCell_1 (+ (select .cse0 (+ .cse2 (- 4))) 1)) (<= 1 v_arrayElimCell_1) (= (select .cse0 .cse2) v_arrayElimCell_1) (<= v_arrayElimCell_1 (+ 2 |ULTIMATE.start_main_~i~1#1|))))) (= (select .cse0 8) 2) (= |ULTIMATE.start_main_~#array~1#1.offset| 0) (= (select .cse1 16) 4)))) [2023-11-29 02:29:59,783 INFO L899 garLoopResultBuilder]: For program point L32-4(lines 32 33) no Hoare annotation was computed. [2023-11-29 02:29:59,784 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 16) no Hoare annotation was computed. [2023-11-29 02:29:59,784 INFO L899 garLoopResultBuilder]: For program point L16(line 16) no Hoare annotation was computed. [2023-11-29 02:29:59,784 INFO L895 garLoopResultBuilder]: At program point L49-3(lines 49 50) the Hoare annotation is: (let ((.cse8 (select |#memory_int#2| |ULTIMATE.start_main_~#array~1#1.base|))) (let ((.cse0 (= (select .cse8 12) 3)) (.cse1 (= (select .cse8 4) 1)) (.cse2 (<= 5 ~n~0)) (.cse3 (= (select .cse8 0) 0)) (.cse4 (= (select .cse8 16) 4)) (.cse5 (= |~#array~0.offset| 0)) (.cse6 (= (select .cse8 8) 2)) (.cse7 (= |ULTIMATE.start_main_~#array~1#1.offset| 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (= 2 |ULTIMATE.start_main_~i~1#1|) .cse6 .cse7) (and .cse0 (= |ULTIMATE.start_main_~i~1#1| 0) .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 (= |ULTIMATE.start_main_~i~1#1| 1) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and .cse0 .cse1 (= 3 |ULTIMATE.start_main_~i~1#1|) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7) (and (<= 4 |ULTIMATE.start_main_~i~1#1|) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7)))) [2023-11-29 02:29:59,784 INFO L899 garLoopResultBuilder]: For program point L49-4(lines 49 50) no Hoare annotation was computed. [2023-11-29 02:29:59,784 INFO L899 garLoopResultBuilder]: For program point L33(line 33) no Hoare annotation was computed. [2023-11-29 02:29:59,784 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 02:29:59,784 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 02:29:59,785 INFO L895 garLoopResultBuilder]: At program point L30-3(lines 30 37) the Hoare annotation is: (let ((.cse9 (select |#memory_int#2| |ULTIMATE.start_main_~#array~1#1.base|))) (let ((.cse10 (store .cse9 (* |ULTIMATE.start_main_~i~1#1| 4) |ULTIMATE.start_main_~i~1#1|))) (let ((.cse0 (<= 5 ~n~0)) (.cse1 (= (select .cse9 0) 0)) (.cse2 (= |~#array~0.offset| 0)) (.cse3 (= 3 (select .cse10 12))) (.cse5 (exists ((v_arrayElimCell_1 Int)) (let ((.cse11 (* v_arrayElimCell_1 4))) (and (= v_arrayElimCell_1 (+ (select .cse9 (+ .cse11 (- 4))) 1)) (<= 1 v_arrayElimCell_1) (= (select .cse9 .cse11) v_arrayElimCell_1) (<= v_arrayElimCell_1 (+ 2 |ULTIMATE.start_main_~i~1#1|)))))) (.cse6 (= (select .cse9 8) 2)) (.cse7 (= |ULTIMATE.start_main_~#array~1#1.offset| 0)) (.cse8 (= (select .cse10 16) 4))) (or (let ((.cse4 (select |#memory_int#1| |~#array~0.base|))) (and .cse0 .cse1 (<= |ULTIMATE.start_main_~i~1#1| 0) .cse2 .cse3 (= (select .cse4 0) 0) (<= 0 (select .cse4 12)) .cse5 .cse6 .cse7 (= (select .cse4 4) 0) (= |ULTIMATE.start_SelectionSort_~lh~0#1| 0) .cse8 (= (select .cse4 8) 0) (= (select .cse4 16) 0))) (and (= (select .cse9 4) 1) .cse0 .cse1 (<= |ULTIMATE.start_main_~i~1#1| 1) (<= |ULTIMATE.start_SelectionSort_~i~0#1| ~n~0) .cse2 .cse3 .cse5 .cse6 .cse7 .cse8))))) [2023-11-29 02:29:59,785 INFO L899 garLoopResultBuilder]: For program point L26(lines 26 38) no Hoare annotation was computed. [2023-11-29 02:29:59,788 INFO L445 BasicCegarLoop]: Path program histogram: [7, 3, 3, 2, 1, 1] [2023-11-29 02:29:59,789 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 02:29:59,798 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated [2023-11-29 02:29:59,801 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated [2023-11-29 02:29:59,801 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated [2023-11-29 02:29:59,801 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated [2023-11-29 02:29:59,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated [2023-11-29 02:29:59,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated [2023-11-29 02:29:59,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated [2023-11-29 02:29:59,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated [2023-11-29 02:29:59,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][12] could not be translated [2023-11-29 02:29:59,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated [2023-11-29 02:29:59,802 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated [2023-11-29 02:29:59,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : int :: ((v_arrayElimCell_1 == #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4 + -4] + 1 && 1 <= v_arrayElimCell_1) && #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4] == v_arrayElimCell_1) && v_arrayElimCell_1 <= 2 + ~i~1) could not be translated [2023-11-29 02:29:59,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated [2023-11-29 02:29:59,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated [2023-11-29 02:29:59,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][16] could not be translated [2023-11-29 02:29:59,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated [2023-11-29 02:29:59,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated [2023-11-29 02:29:59,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated [2023-11-29 02:29:59,803 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated [2023-11-29 02:29:59,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated [2023-11-29 02:29:59,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated [2023-11-29 02:29:59,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated [2023-11-29 02:29:59,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated [2023-11-29 02:29:59,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated [2023-11-29 02:29:59,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated [2023-11-29 02:29:59,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated [2023-11-29 02:29:59,804 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated [2023-11-29 02:29:59,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated [2023-11-29 02:29:59,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated [2023-11-29 02:29:59,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated [2023-11-29 02:29:59,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated [2023-11-29 02:29:59,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated [2023-11-29 02:29:59,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated [2023-11-29 02:29:59,805 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated [2023-11-29 02:29:59,806 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated [2023-11-29 02:29:59,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated [2023-11-29 02:29:59,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated [2023-11-29 02:29:59,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated [2023-11-29 02:29:59,807 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated [2023-11-29 02:29:59,808 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated [2023-11-29 02:29:59,808 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated [2023-11-29 02:29:59,808 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated [2023-11-29 02:29:59,808 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated [2023-11-29 02:29:59,808 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated [2023-11-29 02:29:59,808 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated [2023-11-29 02:29:59,808 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated [2023-11-29 02:29:59,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated [2023-11-29 02:29:59,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated [2023-11-29 02:29:59,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated [2023-11-29 02:29:59,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated [2023-11-29 02:29:59,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated [2023-11-29 02:29:59,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated [2023-11-29 02:29:59,809 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated [2023-11-29 02:29:59,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated [2023-11-29 02:29:59,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated [2023-11-29 02:29:59,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated [2023-11-29 02:29:59,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated [2023-11-29 02:29:59,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated [2023-11-29 02:29:59,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated [2023-11-29 02:29:59,810 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated [2023-11-29 02:29:59,811 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated [2023-11-29 02:29:59,811 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated [2023-11-29 02:29:59,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][12] could not be translated [2023-11-29 02:29:59,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : int :: ((v_arrayElimCell_1 == #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4 + -4] + 1 && 1 <= v_arrayElimCell_1) && #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4] == v_arrayElimCell_1) && v_arrayElimCell_1 <= 2 + ~i~1) could not be translated [2023-11-29 02:29:59,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated [2023-11-29 02:29:59,812 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][16] could not be translated [2023-11-29 02:29:59,813 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated [2023-11-29 02:29:59,813 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][12] could not be translated [2023-11-29 02:29:59,813 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated [2023-11-29 02:29:59,813 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated [2023-11-29 02:29:59,813 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : int :: ((v_arrayElimCell_1 == #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4 + -4] + 1 && 1 <= v_arrayElimCell_1) && #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4] == v_arrayElimCell_1) && v_arrayElimCell_1 <= 2 + ~i~1) could not be translated [2023-11-29 02:29:59,814 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated [2023-11-29 02:29:59,814 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated [2023-11-29 02:29:59,814 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][16] could not be translated [2023-11-29 02:29:59,814 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated [2023-11-29 02:29:59,814 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated [2023-11-29 02:29:59,814 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated [2023-11-29 02:29:59,814 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated [2023-11-29 02:29:59,815 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][12] could not be translated [2023-11-29 02:29:59,815 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : int :: ((v_arrayElimCell_1 == #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4 + -4] + 1 && 1 <= v_arrayElimCell_1) && #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4] == v_arrayElimCell_1) && v_arrayElimCell_1 <= 2 + ~i~1) could not be translated [2023-11-29 02:29:59,815 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated [2023-11-29 02:29:59,815 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][16] could not be translated [2023-11-29 02:29:59,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 02:29:59 BoogieIcfgContainer [2023-11-29 02:29:59,815 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 02:29:59,816 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 02:29:59,816 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 02:29:59,816 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 02:29:59,817 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 02:27:07" (3/4) ... [2023-11-29 02:29:59,818 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 02:29:59,824 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2023-11-29 02:29:59,824 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-11-29 02:29:59,824 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 02:29:59,824 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-11-29 02:29:59,913 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 02:29:59,914 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 02:29:59,914 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 02:29:59,914 INFO L158 Benchmark]: Toolchain (without parser) took 172578.46ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 129.0MB in the beginning and 220.2MB in the end (delta: -91.2MB). Peak memory consumption was 102.3MB. Max. memory is 16.1GB. [2023-11-29 02:29:59,915 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 02:29:59,915 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.62ms. Allocated memory is still 167.8MB. Free memory was 128.5MB in the beginning and 118.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-11-29 02:29:59,915 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.38ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 116.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:29:59,916 INFO L158 Benchmark]: Boogie Preprocessor took 37.14ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 114.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 02:29:59,916 INFO L158 Benchmark]: RCFGBuilder took 288.02ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 101.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2023-11-29 02:29:59,916 INFO L158 Benchmark]: TraceAbstraction took 171899.34ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 100.7MB in the beginning and 224.4MB in the end (delta: -123.7MB). Peak memory consumption was 184.1MB. Max. memory is 16.1GB. [2023-11-29 02:29:59,917 INFO L158 Benchmark]: Witness Printer took 98.11ms. Allocated memory is still 360.7MB. Free memory was 224.4MB in the beginning and 220.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 02:29:59,919 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 167.8MB. Free memory is still 139.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 219.62ms. Allocated memory is still 167.8MB. Free memory was 128.5MB in the beginning and 118.0MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.38ms. Allocated memory is still 167.8MB. Free memory was 118.0MB in the beginning and 116.4MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.14ms. Allocated memory is still 167.8MB. Free memory was 115.9MB in the beginning and 114.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 288.02ms. Allocated memory is still 167.8MB. Free memory was 113.8MB in the beginning and 101.2MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 171899.34ms. Allocated memory was 167.8MB in the beginning and 360.7MB in the end (delta: 192.9MB). Free memory was 100.7MB in the beginning and 224.4MB in the end (delta: -123.7MB). Peak memory consumption was 184.1MB. Max. memory is 16.1GB. * Witness Printer took 98.11ms. Allocated memory is still 360.7MB. Free memory was 224.4MB in the beginning and 220.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : int :: ((v_arrayElimCell_1 == #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4 + -4] + 1 && 1 <= v_arrayElimCell_1) && #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4] == v_arrayElimCell_1) && v_arrayElimCell_1 <= 2 + ~i~1) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : int :: ((v_arrayElimCell_1 == #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4 + -4] + 1 && 1 <= v_arrayElimCell_1) && #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4] == v_arrayElimCell_1) && v_arrayElimCell_1 <= 2 + ~i~1) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : int :: ((v_arrayElimCell_1 == #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4 + -4] + 1 && 1 <= v_arrayElimCell_1) && #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4] == v_arrayElimCell_1) && v_arrayElimCell_1 <= 2 + ~i~1) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#1[~#array~0!base][16] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][0] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][12] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_arrayElimCell_1 : int :: ((v_arrayElimCell_1 == #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4 + -4] + 1 && 1 <= v_arrayElimCell_1) && #memory_int#2[~#array~1!base][v_arrayElimCell_1 * 4] == v_arrayElimCell_1) && v_arrayElimCell_1 <= 2 + ~i~1) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][8] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_int#2[~#array~1!base][~i~1 * 4 := ~i~1][16] could not be translated * 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: 16]: 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, 16 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 171.8s, OverallIterations: 17, TraceHistogramMax: 10, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 129.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 9 mSolverCounterUnknown, 1661 SdHoareTripleChecker+Valid, 42.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1661 mSDsluCounter, 1722 SdHoareTripleChecker+Invalid, 41.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 573 IncrementalHoareTripleChecker+Unchecked, 1505 mSDsCounter, 217 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6564 IncrementalHoareTripleChecker+Invalid, 7363 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 217 mSolverCounterUnsat, 217 mSDtfsCounter, 6564 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1789 GetRequests, 1195 SyntacticMatches, 18 SemanticMatches, 576 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 12253 ImplicationChecksByTransitivity, 104.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=315occurred in iteration=15, InterpolantAutomatonStates: 390, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 358 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 137 NumberOfFragments, 900 HoareAnnotationTreeSize, 4 FomulaSimplifications, 57190 FormulaSimplificationTreeSizeReduction, 5.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 25580 FormulaSimplificationTreeSizeReductionInter, 3.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 28.3s InterpolantComputationTime, 1511 NumberOfCodeBlocks, 1319 NumberOfCodeBlocksAsserted, 49 NumberOfCheckSat, 2084 ConstructedInterpolants, 115 QuantifiedInterpolants, 19619 SizeOfPredicates, 89 NumberOfNonLiveVariables, 2699 ConjunctsInSsa, 260 ConjunctsInUnsatCore, 43 InterpolantComputations, 5 PerfectInterpolantSequences, 5728/7279 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: 44]: Loop Invariant Derived loop invariant: ((((((i == 1) && (5 <= n)) || ((5 <= n) && (i <= 0))) || ((5 <= n) && (i == 4))) || ((3 == i) && (5 <= n))) || ((5 <= n) && (2 == i))) - InvariantResult [Line: 49]: Loop Invariant Derived loop invariant: ((((((5 <= n) && (2 == i)) || ((i == 0) && (5 <= n))) || ((i == 1) && (5 <= n))) || ((3 == i) && (5 <= n))) || ((4 <= i) && (5 <= n))) - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: (((((lh + 1) <= n) && (5 <= n)) && (i <= 1)) && (i <= n)) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((((5 <= n) && (i <= 0)) && (lh == 0)) || (((5 <= n) && (i <= 1)) && (i <= n))) RESULT: Ultimate proved your program to be correct! [2023-11-29 02:29:59,978 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_01f20353-df48-422b-b9a6-6b711edc38e1/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE