./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/list-simple/sll2n_prepend_equal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/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_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/list-simple/sll2n_prepend_equal.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e4cb0386e6b22b9d67dd4f4c4c33eb167dcf1836f99794e4424c5e73e6fc14d4 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 01:15:39,109 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 01:15:39,175 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 01:15:39,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 01:15:39,180 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 01:15:39,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 01:15:39,211 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 01:15:39,226 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 01:15:39,226 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 01:15:39,227 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 01:15:39,227 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 01:15:39,228 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 01:15:39,229 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 01:15:39,229 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 01:15:39,230 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 01:15:39,230 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 01:15:39,231 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 01:15:39,231 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 01:15:39,231 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 01:15:39,232 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 01:15:39,232 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 01:15:39,233 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 01:15:39,233 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 01:15:39,234 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 01:15:39,234 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 01:15:39,234 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 01:15:39,235 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 01:15:39,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 01:15:39,236 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 01:15:39,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 01:15:39,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 01:15:39,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 01:15:39,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 01:15:39,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:15:39,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 01:15:39,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 01:15:39,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 01:15:39,238 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 01:15:39,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 01:15:39,239 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 01:15:39,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 01:15:39,239 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 01:15:39,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 01:15:39,240 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 01:15:39,240 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_dfd40ad1-7800-4fa1-8807-871e3df395a6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e4cb0386e6b22b9d67dd4f4c4c33eb167dcf1836f99794e4424c5e73e6fc14d4 [2023-11-29 01:15:39,452 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 01:15:39,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 01:15:39,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 01:15:39,475 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 01:15:39,475 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 01:15:39,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/list-simple/sll2n_prepend_equal.i [2023-11-29 01:15:42,158 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 01:15:42,390 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 01:15:42,390 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/sv-benchmarks/c/list-simple/sll2n_prepend_equal.i [2023-11-29 01:15:42,404 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/data/af973e683/9ed7bb1268484ac2ba7aa0a84b4ce3eb/FLAGcdb3e72ad [2023-11-29 01:15:42,417 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/data/af973e683/9ed7bb1268484ac2ba7aa0a84b4ce3eb [2023-11-29 01:15:42,419 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 01:15:42,420 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 01:15:42,421 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 01:15:42,421 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 01:15:42,425 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 01:15:42,426 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,426 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@438782bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42, skipping insertion in model container [2023-11-29 01:15:42,427 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,470 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 01:15:42,719 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:15:42,729 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 01:15:42,770 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 01:15:42,802 INFO L206 MainTranslator]: Completed translation [2023-11-29 01:15:42,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42 WrapperNode [2023-11-29 01:15:42,803 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 01:15:42,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 01:15:42,804 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 01:15:42,804 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 01:15:42,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,825 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,846 INFO L138 Inliner]: procedures = 127, calls = 31, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 114 [2023-11-29 01:15:42,847 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 01:15:42,847 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 01:15:42,848 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 01:15:42,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 01:15:42,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,857 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,876 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [2, 5, 7]. 50 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0]. The 5 writes are split as follows [0, 1, 4]. [2023-11-29 01:15:42,876 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,877 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,889 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,892 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,893 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 01:15:42,898 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 01:15:42,898 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 01:15:42,899 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 01:15:42,899 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (1/1) ... [2023-11-29 01:15:42,905 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 01:15:42,916 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:42,930 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 01:15:42,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 01:15:42,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 01:15:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 01:15:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 01:15:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 01:15:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 01:15:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 01:15:42,964 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2023-11-29 01:15:42,965 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2023-11-29 01:15:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 01:15:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 01:15:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 01:15:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 01:15:42,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 01:15:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 01:15:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 01:15:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 01:15:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 01:15:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 01:15:42,966 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-29 01:15:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-29 01:15:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-29 01:15:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 01:15:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 01:15:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 01:15:42,967 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 01:15:42,968 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 01:15:43,097 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 01:15:43,099 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 01:15:43,266 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 01:15:43,304 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 01:15:43,304 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-29 01:15:43,305 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:15:43 BoogieIcfgContainer [2023-11-29 01:15:43,305 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 01:15:43,307 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 01:15:43,308 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 01:15:43,311 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 01:15:43,311 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 01:15:42" (1/3) ... [2023-11-29 01:15:43,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3ab94d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:15:43, skipping insertion in model container [2023-11-29 01:15:43,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 01:15:42" (2/3) ... [2023-11-29 01:15:43,312 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d3ab94d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 01:15:43, skipping insertion in model container [2023-11-29 01:15:43,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:15:43" (3/3) ... [2023-11-29 01:15:43,314 INFO L112 eAbstractionObserver]: Analyzing ICFG sll2n_prepend_equal.i [2023-11-29 01:15:43,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 01:15:43,333 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 01:15:43,380 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 01:15:43,387 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;@195e5646, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 01:15:43,388 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 01:15:43,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 29 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:15:43,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-29 01:15:43,399 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:43,400 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:43,400 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:43,406 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:43,406 INFO L85 PathProgramCache]: Analyzing trace with hash -534409377, now seen corresponding path program 1 times [2023-11-29 01:15:43,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:43,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723706863] [2023-11-29 01:15:43,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:43,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:43,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:43,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:43,776 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 01:15:43,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:43,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723706863] [2023-11-29 01:15:43,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723706863] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:15:43,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:15:43,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:15:43,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134747000] [2023-11-29 01:15:43,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:15:43,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:15:43,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:43,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:15:43,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:15:43,807 INFO L87 Difference]: Start difference. First operand has 33 states, 23 states have (on average 1.6956521739130435) internal successors, (39), 29 states have internal predecessors, (39), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:15:43,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:43,897 INFO L93 Difference]: Finished difference Result 64 states and 84 transitions. [2023-11-29 01:15:43,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:15:43,899 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2023-11-29 01:15:43,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:43,904 INFO L225 Difference]: With dead ends: 64 [2023-11-29 01:15:43,904 INFO L226 Difference]: Without dead ends: 29 [2023-11-29 01:15:43,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:15:43,911 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:43,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 101 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:15:43,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2023-11-29 01:15:43,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2023-11-29 01:15:43,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.368421052631579) internal successors, (26), 24 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:15:43,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-11-29 01:15:43,940 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 8 [2023-11-29 01:15:43,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:43,941 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-11-29 01:15:43,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-29 01:15:43,942 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-11-29 01:15:43,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2023-11-29 01:15:43,943 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:43,943 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1] [2023-11-29 01:15:43,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 01:15:43,944 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:43,944 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:43,944 INFO L85 PathProgramCache]: Analyzing trace with hash -997134256, now seen corresponding path program 1 times [2023-11-29 01:15:43,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:43,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425060762] [2023-11-29 01:15:43,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:43,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:43,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:44,059 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:44,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:44,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:15:44,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:44,090 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:15:44,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:44,091 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425060762] [2023-11-29 01:15:44,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425060762] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:15:44,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:15:44,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:15:44,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092567690] [2023-11-29 01:15:44,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:15:44,093 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:15:44,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:44,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:15:44,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:15:44,094 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:15:44,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:44,146 INFO L93 Difference]: Finished difference Result 29 states and 32 transitions. [2023-11-29 01:15:44,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:15:44,146 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 16 [2023-11-29 01:15:44,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:44,147 INFO L225 Difference]: With dead ends: 29 [2023-11-29 01:15:44,148 INFO L226 Difference]: Without dead ends: 28 [2023-11-29 01:15:44,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:15:44,150 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 5 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:44,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 55 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:15:44,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-29 01:15:44,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-29 01:15:44,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.3157894736842106) internal successors, (25), 23 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:15:44,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2023-11-29 01:15:44,157 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 16 [2023-11-29 01:15:44,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:44,157 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2023-11-29 01:15:44,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:15:44,158 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2023-11-29 01:15:44,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2023-11-29 01:15:44,159 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:44,159 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1] [2023-11-29 01:15:44,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 01:15:44,159 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:44,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:44,160 INFO L85 PathProgramCache]: Analyzing trace with hash -846390816, now seen corresponding path program 1 times [2023-11-29 01:15:44,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:44,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068715328] [2023-11-29 01:15:44,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:44,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:44,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:44,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:44,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:44,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:15:44,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:44,334 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:15:44,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:44,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068715328] [2023-11-29 01:15:44,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068715328] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:15:44,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1466789126] [2023-11-29 01:15:44,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:44,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:44,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:44,339 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:44,341 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 01:15:44,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:44,466 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 01:15:44,470 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:44,552 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:15:44,553 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:15:44,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1466789126] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:15:44,553 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:15:44,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2023-11-29 01:15:44,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388921685] [2023-11-29 01:15:44,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:15:44,554 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:15:44,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:44,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:15:44,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:15:44,556 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:15:44,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:44,613 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2023-11-29 01:15:44,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:15:44,614 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 17 [2023-11-29 01:15:44,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:44,615 INFO L225 Difference]: With dead ends: 28 [2023-11-29 01:15:44,615 INFO L226 Difference]: Without dead ends: 27 [2023-11-29 01:15:44,616 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:15:44,617 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 5 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:44,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 64 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:15:44,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-29 01:15:44,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2023-11-29 01:15:44,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:15:44,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 25 transitions. [2023-11-29 01:15:44,624 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 25 transitions. Word has length 17 [2023-11-29 01:15:44,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:44,624 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 25 transitions. [2023-11-29 01:15:44,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.2) internal successors, (11), 6 states have internal predecessors, (11), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:15:44,625 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 25 transitions. [2023-11-29 01:15:44,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-11-29 01:15:44,625 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:44,625 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:44,633 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 01:15:44,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-11-29 01:15:44,826 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:44,827 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:44,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2030990152, now seen corresponding path program 1 times [2023-11-29 01:15:44,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:44,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976499086] [2023-11-29 01:15:44,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:44,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:44,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:44,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:44,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 01:15:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:44,950 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:15:44,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:44,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976499086] [2023-11-29 01:15:44,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976499086] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:15:44,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985906808] [2023-11-29 01:15:44,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:44,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:44,951 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:44,952 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:44,957 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 01:15:45,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:45,093 INFO L262 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:15:45,095 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:15:45,123 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:15:45,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985906808] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:15:45,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:15:45,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-11-29 01:15:45,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326879040] [2023-11-29 01:15:45,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:15:45,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:15:45,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:45,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:15:45,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:15:45,125 INFO L87 Difference]: Start difference. First operand 23 states and 25 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:45,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:45,142 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2023-11-29 01:15:45,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:15:45,142 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2023-11-29 01:15:45,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:45,143 INFO L225 Difference]: With dead ends: 23 [2023-11-29 01:15:45,143 INFO L226 Difference]: Without dead ends: 22 [2023-11-29 01:15:45,144 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:15:45,145 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:45,145 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 19 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:15:45,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2023-11-29 01:15:45,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2023-11-29 01:15:45,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 16 states have (on average 1.25) internal successors, (20), 18 states have internal predecessors, (20), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:15:45,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 24 transitions. [2023-11-29 01:15:45,150 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 24 transitions. Word has length 18 [2023-11-29 01:15:45,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:45,151 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 24 transitions. [2023-11-29 01:15:45,151 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:45,151 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 24 transitions. [2023-11-29 01:15:45,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 01:15:45,152 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:45,152 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:45,157 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 01:15:45,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:45,357 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:45,357 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:45,358 INFO L85 PathProgramCache]: Analyzing trace with hash 1463814811, now seen corresponding path program 1 times [2023-11-29 01:15:45,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:45,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704307126] [2023-11-29 01:15:45,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:45,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:45,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:45,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:45,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:45,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 01:15:45,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:45,490 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:15:45,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:45,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704307126] [2023-11-29 01:15:45,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704307126] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:15:45,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462085655] [2023-11-29 01:15:45,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:45,491 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:45,491 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:45,493 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:45,497 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 01:15:45,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:45,648 INFO L262 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 01:15:45,650 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:45,681 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-11-29 01:15:45,682 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:15:45,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462085655] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:15:45,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:15:45,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-11-29 01:15:45,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456979033] [2023-11-29 01:15:45,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:15:45,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 01:15:45,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:45,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 01:15:45,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:15:45,684 INFO L87 Difference]: Start difference. First operand 22 states and 24 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:45,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:45,699 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2023-11-29 01:15:45,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 01:15:45,700 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2023-11-29 01:15:45,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:45,701 INFO L225 Difference]: With dead ends: 22 [2023-11-29 01:15:45,701 INFO L226 Difference]: Without dead ends: 19 [2023-11-29 01:15:45,701 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 01:15:45,702 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 6 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:45,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 19 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:15:45,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2023-11-29 01:15:45,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2023-11-29 01:15:45,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 14 states have (on average 1.2142857142857142) internal successors, (17), 15 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 01:15:45,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2023-11-29 01:15:45,707 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 19 [2023-11-29 01:15:45,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:45,707 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2023-11-29 01:15:45,707 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:45,707 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2023-11-29 01:15:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2023-11-29 01:15:45,708 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:45,708 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:45,714 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 01:15:45,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:45,909 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:45,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:45,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1463816445, now seen corresponding path program 1 times [2023-11-29 01:15:45,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:45,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618637457] [2023-11-29 01:15:45,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:45,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:45,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:46,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-29 01:15:46,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,034 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:15:46,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:46,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618637457] [2023-11-29 01:15:46,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618637457] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:15:46,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1966707700] [2023-11-29 01:15:46,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:46,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:46,035 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:46,037 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:46,038 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 01:15:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,174 INFO L262 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 01:15:46,177 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:46,208 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 01:15:46,208 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:15:46,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 01:15:46,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1966707700] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:15:46,248 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:15:46,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 8 [2023-11-29 01:15:46,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404512903] [2023-11-29 01:15:46,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:15:46,249 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 01:15:46,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:46,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 01:15:46,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-29 01:15:46,250 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:15:46,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:46,312 INFO L93 Difference]: Finished difference Result 36 states and 40 transitions. [2023-11-29 01:15:46,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:15:46,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 19 [2023-11-29 01:15:46,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:46,313 INFO L225 Difference]: With dead ends: 36 [2023-11-29 01:15:46,314 INFO L226 Difference]: Without dead ends: 24 [2023-11-29 01:15:46,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:15:46,315 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 5 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:46,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 59 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:15:46,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2023-11-29 01:15:46,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2023-11-29 01:15:46,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 19 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:15:46,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2023-11-29 01:15:46,320 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 19 [2023-11-29 01:15:46,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:46,321 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2023-11-29 01:15:46,321 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.625) internal successors, (21), 7 states have internal predecessors, (21), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:15:46,321 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2023-11-29 01:15:46,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2023-11-29 01:15:46,322 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:46,322 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:46,328 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 01:15:46,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:46,525 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:46,525 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:46,525 INFO L85 PathProgramCache]: Analyzing trace with hash -298492052, now seen corresponding path program 2 times [2023-11-29 01:15:46,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:46,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32473483] [2023-11-29 01:15:46,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:46,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:46,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:46,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:15:46,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:15:46,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,636 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:46,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:46,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32473483] [2023-11-29 01:15:46,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32473483] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:15:46,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 01:15:46,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 01:15:46,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306829614] [2023-11-29 01:15:46,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:15:46,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 01:15:46,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:46,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 01:15:46,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 01:15:46,639 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:46,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:46,685 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2023-11-29 01:15:46,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 01:15:46,685 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2023-11-29 01:15:46,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:46,686 INFO L225 Difference]: With dead ends: 30 [2023-11-29 01:15:46,686 INFO L226 Difference]: Without dead ends: 28 [2023-11-29 01:15:46,686 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 01:15:46,687 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 3 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:46,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 40 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:15:46,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-11-29 01:15:46,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-11-29 01:15:46,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 23 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:15:46,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2023-11-29 01:15:46,694 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 27 [2023-11-29 01:15:46,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:46,694 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2023-11-29 01:15:46,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:46,695 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2023-11-29 01:15:46,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-29 01:15:46,696 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:46,696 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:46,696 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 01:15:46,696 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:46,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:46,697 INFO L85 PathProgramCache]: Analyzing trace with hash 209934885, now seen corresponding path program 1 times [2023-11-29 01:15:46,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:46,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434249280] [2023-11-29 01:15:46,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:46,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:46,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:15:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:15:46,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:46,840 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:46,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:46,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434249280] [2023-11-29 01:15:46,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434249280] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:15:46,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297783786] [2023-11-29 01:15:46,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:46,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:46,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:46,843 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:46,849 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 01:15:47,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:47,022 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:15:47,024 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:47,058 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:47,058 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:15:47,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297783786] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:15:47,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:15:47,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2023-11-29 01:15:47,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587855593] [2023-11-29 01:15:47,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:15:47,059 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 01:15:47,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:47,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 01:15:47,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2023-11-29 01:15:47,060 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:47,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:47,106 INFO L93 Difference]: Finished difference Result 28 states and 31 transitions. [2023-11-29 01:15:47,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 01:15:47,107 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2023-11-29 01:15:47,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:47,108 INFO L225 Difference]: With dead ends: 28 [2023-11-29 01:15:47,108 INFO L226 Difference]: Without dead ends: 27 [2023-11-29 01:15:47,108 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2023-11-29 01:15:47,109 INFO L413 NwaCegarLoop]: 11 mSDtfsCounter, 8 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:47,109 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 41 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:15:47,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-11-29 01:15:47,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-11-29 01:15:47,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.0909090909090908) internal successors, (24), 22 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:15:47,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 30 transitions. [2023-11-29 01:15:47,114 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 30 transitions. Word has length 31 [2023-11-29 01:15:47,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:47,115 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 30 transitions. [2023-11-29 01:15:47,115 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.4) internal successors, (17), 6 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:47,115 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 30 transitions. [2023-11-29 01:15:47,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-11-29 01:15:47,116 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:47,116 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:47,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 01:15:47,321 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:47,321 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:47,321 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:47,321 INFO L85 PathProgramCache]: Analyzing trace with hash -2081953081, now seen corresponding path program 1 times [2023-11-29 01:15:47,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:47,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246474967] [2023-11-29 01:15:47,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:47,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:47,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:47,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:47,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:15:47,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:47,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:15:47,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:47,467 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:47,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:47,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246474967] [2023-11-29 01:15:47,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246474967] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:15:47,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1797670861] [2023-11-29 01:15:47,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:47,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:47,468 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:47,469 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:47,472 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 01:15:47,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:47,651 INFO L262 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 01:15:47,654 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:47,682 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:15:47,743 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:47,744 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1797670861] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:15:47,744 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:15:47,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2023-11-29 01:15:47,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229092294] [2023-11-29 01:15:47,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:15:47,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-29 01:15:47,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:47,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-29 01:15:47,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2023-11-29 01:15:47,746 INFO L87 Difference]: Start difference. First operand 27 states and 30 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:47,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:47,849 INFO L93 Difference]: Finished difference Result 40 states and 45 transitions. [2023-11-29 01:15:47,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-29 01:15:47,849 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2023-11-29 01:15:47,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:47,850 INFO L225 Difference]: With dead ends: 40 [2023-11-29 01:15:47,850 INFO L226 Difference]: Without dead ends: 39 [2023-11-29 01:15:47,851 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2023-11-29 01:15:47,851 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 14 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:47,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 58 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:15:47,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2023-11-29 01:15:47,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2023-11-29 01:15:47,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 34 states have (on average 1.0588235294117647) internal successors, (36), 34 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:15:47,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2023-11-29 01:15:47,858 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 32 [2023-11-29 01:15:47,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:47,858 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2023-11-29 01:15:47,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:47,858 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2023-11-29 01:15:47,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-11-29 01:15:47,859 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:47,859 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:47,866 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 01:15:48,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:48,065 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:48,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:48,065 INFO L85 PathProgramCache]: Analyzing trace with hash 634632956, now seen corresponding path program 2 times [2023-11-29 01:15:48,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:48,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286201111] [2023-11-29 01:15:48,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:48,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:48,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:48,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:48,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:48,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:15:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:48,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:15:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:48,315 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:48,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:48,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286201111] [2023-11-29 01:15:48,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286201111] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:15:48,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844672378] [2023-11-29 01:15:48,316 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 01:15:48,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:48,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:48,317 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:48,320 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 01:15:48,544 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 01:15:48,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:15:48,547 INFO L262 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 01:15:48,550 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:48,608 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:48,608 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:15:48,778 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:48,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844672378] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:15:48,778 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:15:48,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2023-11-29 01:15:48,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710201094] [2023-11-29 01:15:48,778 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:15:48,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-29 01:15:48,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:48,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-29 01:15:48,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2023-11-29 01:15:48,780 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 25 states, 24 states have (on average 2.375) internal successors, (57), 24 states have internal predecessors, (57), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:48,994 INFO L93 Difference]: Finished difference Result 64 states and 72 transitions. [2023-11-29 01:15:48,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-29 01:15:48,995 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 2.375) internal successors, (57), 24 states have internal predecessors, (57), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 44 [2023-11-29 01:15:48,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:48,996 INFO L225 Difference]: With dead ends: 64 [2023-11-29 01:15:48,996 INFO L226 Difference]: Without dead ends: 63 [2023-11-29 01:15:48,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2023-11-29 01:15:48,997 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 44 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:48,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 74 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:15:48,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2023-11-29 01:15:49,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2023-11-29 01:15:49,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 58 states have (on average 1.0344827586206897) internal successors, (60), 58 states have internal predecessors, (60), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:15:49,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 66 transitions. [2023-11-29 01:15:49,005 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 66 transitions. Word has length 44 [2023-11-29 01:15:49,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:49,005 INFO L495 AbstractCegarLoop]: Abstraction has 63 states and 66 transitions. [2023-11-29 01:15:49,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 2.375) internal successors, (57), 24 states have internal predecessors, (57), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:49,006 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 66 transitions. [2023-11-29 01:15:49,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2023-11-29 01:15:49,007 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:49,007 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:49,012 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 01:15:49,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:49,208 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:49,208 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:49,208 INFO L85 PathProgramCache]: Analyzing trace with hash 52667622, now seen corresponding path program 3 times [2023-11-29 01:15:49,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:49,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516085454] [2023-11-29 01:15:49,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:49,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:49,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:49,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:49,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:49,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:15:49,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:49,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:15:49,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:49,740 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:49,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:49,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516085454] [2023-11-29 01:15:49,740 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516085454] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:15:49,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1161769598] [2023-11-29 01:15:49,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 01:15:49,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:49,741 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:49,742 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:49,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 01:15:50,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-11-29 01:15:50,638 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:15:50,642 INFO L262 TraceCheckSpWp]: Trace formula consists of 522 conjuncts, 23 conjunts are in the unsatisfiable core [2023-11-29 01:15:50,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:50,738 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:50,738 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:15:51,321 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 0 proven. 220 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:51,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1161769598] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:15:51,322 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:15:51,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 23] total 48 [2023-11-29 01:15:51,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43458381] [2023-11-29 01:15:51,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:15:51,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-11-29 01:15:51,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:51,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-11-29 01:15:51,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=601, Invalid=1751, Unknown=0, NotChecked=0, Total=2352 [2023-11-29 01:15:51,326 INFO L87 Difference]: Start difference. First operand 63 states and 66 transitions. Second operand has 49 states, 48 states have (on average 2.1875) internal successors, (105), 48 states have internal predecessors, (105), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:51,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:51,878 INFO L93 Difference]: Finished difference Result 112 states and 126 transitions. [2023-11-29 01:15:51,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2023-11-29 01:15:51,878 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 2.1875) internal successors, (105), 48 states have internal predecessors, (105), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 68 [2023-11-29 01:15:51,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:51,880 INFO L225 Difference]: With dead ends: 112 [2023-11-29 01:15:51,880 INFO L226 Difference]: Without dead ends: 111 [2023-11-29 01:15:51,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1068 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1384, Invalid=3586, Unknown=0, NotChecked=0, Total=4970 [2023-11-29 01:15:51,883 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 148 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:51,884 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 112 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 01:15:51,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2023-11-29 01:15:51,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2023-11-29 01:15:51,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 111 states, 106 states have (on average 1.0188679245283019) internal successors, (108), 106 states have internal predecessors, (108), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:15:51,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 114 transitions. [2023-11-29 01:15:51,894 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 114 transitions. Word has length 68 [2023-11-29 01:15:51,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:51,895 INFO L495 AbstractCegarLoop]: Abstraction has 111 states and 114 transitions. [2023-11-29 01:15:51,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 2.1875) internal successors, (105), 48 states have internal predecessors, (105), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:51,895 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 114 transitions. [2023-11-29 01:15:51,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-11-29 01:15:51,897 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:51,897 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:51,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 01:15:52,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 01:15:52,101 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:52,101 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:52,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1578131782, now seen corresponding path program 4 times [2023-11-29 01:15:52,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:52,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176131383] [2023-11-29 01:15:52,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:52,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:53,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:15:53,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:53,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:15:53,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:53,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:15:53,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:15:53,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 0 proven. 1012 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:53,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:15:53,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176131383] [2023-11-29 01:15:53,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176131383] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:15:53,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304671165] [2023-11-29 01:15:53,594 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-29 01:15:53,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:15:53,594 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:15:53,595 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:15:53,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 01:15:54,387 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-29 01:15:54,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:15:54,392 INFO L262 TraceCheckSpWp]: Trace formula consists of 750 conjuncts, 47 conjunts are in the unsatisfiable core [2023-11-29 01:15:54,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:15:54,558 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 0 proven. 1012 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:54,558 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:15:56,236 INFO L134 CoverageAnalysis]: Checked inductivity of 1028 backedges. 0 proven. 1012 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:15:56,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304671165] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:15:56,237 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:15:56,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 47, 47] total 96 [2023-11-29 01:15:56,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046217257] [2023-11-29 01:15:56,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:15:56,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2023-11-29 01:15:56,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:15:56,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2023-11-29 01:15:56,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2353, Invalid=6959, Unknown=0, NotChecked=0, Total=9312 [2023-11-29 01:15:56,243 INFO L87 Difference]: Start difference. First operand 111 states and 114 transitions. Second operand has 97 states, 96 states have (on average 2.09375) internal successors, (201), 96 states have internal predecessors, (201), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:57,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:15:57,725 INFO L93 Difference]: Finished difference Result 208 states and 234 transitions. [2023-11-29 01:15:57,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2023-11-29 01:15:57,726 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 96 states have (on average 2.09375) internal successors, (201), 96 states have internal predecessors, (201), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 116 [2023-11-29 01:15:57,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:15:57,727 INFO L225 Difference]: With dead ends: 208 [2023-11-29 01:15:57,728 INFO L226 Difference]: Without dead ends: 207 [2023-11-29 01:15:57,734 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4452 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=5644, Invalid=14662, Unknown=0, NotChecked=0, Total=20306 [2023-11-29 01:15:57,735 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 286 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 01:15:57,735 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 154 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 01:15:57,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2023-11-29 01:15:57,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 207. [2023-11-29 01:15:57,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 202 states have (on average 1.00990099009901) internal successors, (204), 202 states have internal predecessors, (204), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:15:57,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 210 transitions. [2023-11-29 01:15:57,751 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 210 transitions. Word has length 116 [2023-11-29 01:15:57,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:15:57,752 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 210 transitions. [2023-11-29 01:15:57,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 96 states have (on average 2.09375) internal successors, (201), 96 states have internal predecessors, (201), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:15:57,752 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 210 transitions. [2023-11-29 01:15:57,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-11-29 01:15:57,756 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:15:57,756 INFO L195 NwaCegarLoop]: trace histogram [47, 47, 47, 46, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:15:57,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-29 01:15:57,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-11-29 01:15:57,961 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:15:57,961 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:15:57,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1670392418, now seen corresponding path program 5 times [2023-11-29 01:15:57,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:15:57,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605759983] [2023-11-29 01:15:57,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:15:57,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:15:58,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:02,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:16:02,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:02,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:16:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:02,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:16:02,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 4340 backedges. 0 proven. 4324 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:16:02,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:02,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605759983] [2023-11-29 01:16:02,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605759983] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:16:02,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [129582676] [2023-11-29 01:16:02,728 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-29 01:16:02,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:02,729 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:16:02,729 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:16:02,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 01:16:03,178 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 47 check-sat command(s) [2023-11-29 01:16:03,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:16:03,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 1206 conjuncts, 95 conjunts are in the unsatisfiable core [2023-11-29 01:16:03,191 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:16:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4340 backedges. 0 proven. 4324 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:16:03,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:16:09,465 INFO L134 CoverageAnalysis]: Checked inductivity of 4340 backedges. 0 proven. 4324 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:16:09,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [129582676] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 01:16:09,466 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 01:16:09,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [96, 95, 95] total 192 [2023-11-29 01:16:09,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249646242] [2023-11-29 01:16:09,466 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 01:16:09,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 193 states [2023-11-29 01:16:09,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:09,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 193 interpolants. [2023-11-29 01:16:09,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9313, Invalid=27743, Unknown=0, NotChecked=0, Total=37056 [2023-11-29 01:16:09,477 INFO L87 Difference]: Start difference. First operand 207 states and 210 transitions. Second operand has 193 states, 192 states have (on average 2.046875) internal successors, (393), 192 states have internal predecessors, (393), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:15,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:15,234 INFO L93 Difference]: Finished difference Result 400 states and 450 transitions. [2023-11-29 01:16:15,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2023-11-29 01:16:15,235 INFO L78 Accepts]: Start accepts. Automaton has has 193 states, 192 states have (on average 2.046875) internal successors, (393), 192 states have internal predecessors, (393), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 212 [2023-11-29 01:16:15,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:15,238 INFO L225 Difference]: With dead ends: 400 [2023-11-29 01:16:15,238 INFO L226 Difference]: Without dead ends: 399 [2023-11-29 01:16:15,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 617 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 285 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18132 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=22804, Invalid=59278, Unknown=0, NotChecked=0, Total=82082 [2023-11-29 01:16:15,244 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 624 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 547 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 624 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:15,244 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [624 Valid, 202 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 547 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 01:16:15,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2023-11-29 01:16:15,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 399. [2023-11-29 01:16:15,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 394 states have (on average 1.0050761421319796) internal successors, (396), 394 states have internal predecessors, (396), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 01:16:15,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 402 transitions. [2023-11-29 01:16:15,259 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 402 transitions. Word has length 212 [2023-11-29 01:16:15,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:15,259 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 402 transitions. [2023-11-29 01:16:15,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 193 states, 192 states have (on average 2.046875) internal successors, (393), 192 states have internal predecessors, (393), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 01:16:15,260 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 402 transitions. [2023-11-29 01:16:15,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2023-11-29 01:16:15,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:15,264 INFO L195 NwaCegarLoop]: trace histogram [95, 95, 95, 94, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:15,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 01:16:15,465 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 01:16:15,465 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:16:15,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:15,466 INFO L85 PathProgramCache]: Analyzing trace with hash -1582063182, now seen corresponding path program 6 times [2023-11-29 01:16:15,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:15,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350244208] [2023-11-29 01:16:15,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:15,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:15,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:31,458 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:16:31,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:31,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:16:31,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:31,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 01:16:31,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:31,485 INFO L134 CoverageAnalysis]: Checked inductivity of 17876 backedges. 0 proven. 17860 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 01:16:31,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:31,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350244208] [2023-11-29 01:16:31,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350244208] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:16:31,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20403842] [2023-11-29 01:16:31,485 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-11-29 01:16:31,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:31,486 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:16:31,486 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:16:31,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 01:16:33,380 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2023-11-29 01:16:33,380 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 01:16:33,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 147 conjunts are in the unsatisfiable core [2023-11-29 01:16:33,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:16:33,500 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-29 01:16:33,825 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 01:16:33,831 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 01:16:34,380 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-11-29 01:16:34,380 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 17 treesize of output 21 [2023-11-29 01:16:34,393 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 01:16:34,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-29 01:16:34,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-29 01:16:34,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2023-11-29 01:16:34,995 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2023-11-29 01:16:34,996 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 3 new quantified variables, introduced 1 case distinctions, treesize of input 60 treesize of output 27 [2023-11-29 01:16:35,003 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2023-11-29 01:16:35,008 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2023-11-29 01:16:35,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-29 01:16:35,546 INFO L349 Elim1Store]: treesize reduction 29, result has 14.7 percent of original size [2023-11-29 01:16:35,547 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 68 treesize of output 51 [2023-11-29 01:16:35,563 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2023-11-29 01:16:35,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 2 case distinctions, treesize of input 28 treesize of output 30 [2023-11-29 01:16:35,573 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 33 [2023-11-29 01:16:35,827 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 93 treesize of output 61 [2023-11-29 01:16:35,846 INFO L349 Elim1Store]: treesize reduction 33, result has 17.5 percent of original size [2023-11-29 01:16:35,846 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 44 [2023-11-29 01:16:35,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 40 [2023-11-29 01:16:37,189 INFO L134 CoverageAnalysis]: Checked inductivity of 17876 backedges. 1197 proven. 26 refuted. 0 times theorem prover too weak. 16653 trivial. 0 not checked. [2023-11-29 01:16:37,189 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 01:16:38,441 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:16:38,442 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 423 treesize of output 385 [2023-11-29 01:16:38,450 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-29 01:16:38,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 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 374 treesize of output 336 [2023-11-29 01:16:39,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20403842] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:16:39,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-29 01:16:39,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [192, 24] total 215 [2023-11-29 01:16:39,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795569088] [2023-11-29 01:16:39,141 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-29 01:16:39,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 215 states [2023-11-29 01:16:39,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:39,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 215 interpolants. [2023-11-29 01:16:39,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9384, Invalid=39678, Unknown=0, NotChecked=0, Total=49062 [2023-11-29 01:16:39,147 INFO L87 Difference]: Start difference. First operand 399 states and 402 transitions. Second operand has 215 states, 211 states have (on average 2.018957345971564) internal successors, (426), 209 states have internal predecessors, (426), 4 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 01:16:50,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:50,205 INFO L93 Difference]: Finished difference Result 797 states and 804 transitions. [2023-11-29 01:16:50,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 215 states. [2023-11-29 01:16:50,205 INFO L78 Accepts]: Start accepts. Automaton has has 215 states, 211 states have (on average 2.018957345971564) internal successors, (426), 209 states have internal predecessors, (426), 4 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 404 [2023-11-29 01:16:50,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:50,207 INFO L225 Difference]: With dead ends: 797 [2023-11-29 01:16:50,207 INFO L226 Difference]: Without dead ends: 410 [2023-11-29 01:16:50,214 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1092 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 330 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21160 ImplicationChecksByTransitivity, 21.6s TimeCoverageRelationStatistics Valid=24743, Invalid=85149, Unknown=0, NotChecked=0, Total=109892 [2023-11-29 01:16:50,215 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 703 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 1252 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 703 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:50,215 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [703 Valid, 481 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1252 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-29 01:16:50,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2023-11-29 01:16:50,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 408. [2023-11-29 01:16:50,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 402 states have (on average 1.0049751243781095) internal successors, (404), 402 states have internal predecessors, (404), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-11-29 01:16:50,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 412 transitions. [2023-11-29 01:16:50,229 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 412 transitions. Word has length 404 [2023-11-29 01:16:50,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:50,230 INFO L495 AbstractCegarLoop]: Abstraction has 408 states and 412 transitions. [2023-11-29 01:16:50,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 215 states, 211 states have (on average 2.018957345971564) internal successors, (426), 209 states have internal predecessors, (426), 4 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-11-29 01:16:50,230 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 412 transitions. [2023-11-29 01:16:50,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2023-11-29 01:16:50,235 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 01:16:50,236 INFO L195 NwaCegarLoop]: trace histogram [96, 96, 96, 95, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:50,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 01:16:50,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:50,436 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 01:16:50,437 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 01:16:50,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1810090998, now seen corresponding path program 7 times [2023-11-29 01:16:50,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 01:16:50,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805314477] [2023-11-29 01:16:50,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 01:16:50,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 01:16:50,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:50,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 01:16:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:50,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 01:16:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:50,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2023-11-29 01:16:50,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:50,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-29 01:16:50,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:50,826 INFO L134 CoverageAnalysis]: Checked inductivity of 18276 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 18258 trivial. 0 not checked. [2023-11-29 01:16:50,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 01:16:50,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805314477] [2023-11-29 01:16:50,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805314477] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 01:16:50,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048180243] [2023-11-29 01:16:50,827 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-11-29 01:16:50,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 01:16:50,828 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 01:16:50,829 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 01:16:50,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 01:16:51,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 01:16:51,332 INFO L262 TraceCheckSpWp]: Trace formula consists of 2219 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 01:16:51,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 01:16:51,367 INFO L134 CoverageAnalysis]: Checked inductivity of 18276 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 18246 trivial. 0 not checked. [2023-11-29 01:16:51,367 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 01:16:51,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048180243] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 01:16:51,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 01:16:51,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 10 [2023-11-29 01:16:51,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693509474] [2023-11-29 01:16:51,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 01:16:51,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 01:16:51,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 01:16:51,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 01:16:51,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2023-11-29 01:16:51,369 INFO L87 Difference]: Start difference. First operand 408 states and 412 transitions. Second operand has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:16:51,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 01:16:51,412 INFO L93 Difference]: Finished difference Result 411 states and 414 transitions. [2023-11-29 01:16:51,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 01:16:51,413 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 416 [2023-11-29 01:16:51,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 01:16:51,413 INFO L225 Difference]: With dead ends: 411 [2023-11-29 01:16:51,413 INFO L226 Difference]: Without dead ends: 0 [2023-11-29 01:16:51,414 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-11-29 01:16:51,414 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 01:16:51,415 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 16 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 01:16:51,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2023-11-29 01:16:51,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2023-11-29 01:16:51,415 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 01:16:51,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2023-11-29 01:16:51,415 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 416 [2023-11-29 01:16:51,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 01:16:51,416 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2023-11-29 01:16:51,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 7 states have internal predecessors, (25), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2023-11-29 01:16:51,416 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2023-11-29 01:16:51,416 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2023-11-29 01:16:51,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2023-11-29 01:16:51,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2023-11-29 01:16:51,418 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2023-11-29 01:16:51,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2023-11-29 01:16:51,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2023-11-29 01:16:51,419 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2023-11-29 01:16:51,426 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 01:16:51,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 01:16:51,621 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2023-11-29 01:16:51,802 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 617) no Hoare annotation was computed. [2023-11-29 01:16:51,802 INFO L902 garLoopResultBuilder]: At program point L593-2(lines 593 597) the Hoare annotation is: true [2023-11-29 01:16:51,802 INFO L899 garLoopResultBuilder]: For program point main_returnLabel#1(lines 604 626) no Hoare annotation was computed. [2023-11-29 01:16:51,802 INFO L899 garLoopResultBuilder]: For program point L585-3(line 585) no Hoare annotation was computed. [2023-11-29 01:16:51,802 INFO L899 garLoopResultBuilder]: For program point L585-4(line 585) no Hoare annotation was computed. [2023-11-29 01:16:51,802 INFO L895 garLoopResultBuilder]: At program point L585-5(lines 585 589) the Hoare annotation is: (let ((.cse0 (= (select (select |#memory_$Pointer$#2.offset| |ULTIMATE.start_sll_create_~head~0#1.base|) 4) 0)) (.cse2 (= (select |#valid| |ULTIMATE.start_sll_create_~head~0#1.base|) 1)) (.cse1 (select (select |#memory_$Pointer$#2.base| |ULTIMATE.start_sll_create_~head~0#1.base|) 4)) (.cse3 (= |ULTIMATE.start_sll_create_~head~0#1.offset| 0)) (.cse4 (= |ULTIMATE.start_main_~len~0#1| 2))) (or (and .cse0 (= (select (select |#memory_$Pointer$#2.base| .cse1) 4) 0) .cse2 .cse3 (<= |ULTIMATE.start_sll_create_~len#1| 0) (= (select |#valid| .cse1) 1) (= (select (select |#memory_$Pointer$#2.offset| .cse1) 4) 0) (not (= .cse1 |ULTIMATE.start_sll_create_~head~0#1.base|)) .cse4) (and .cse0 .cse2 .cse3 (= .cse1 0) (= |ULTIMATE.start_sll_create_~len#1| 1) .cse4) (and (= 2 |ULTIMATE.start_sll_create_~len#1|) .cse3 (= |ULTIMATE.start_sll_create_~head~0#1.base| 0) .cse4))) [2023-11-29 01:16:51,802 INFO L899 garLoopResultBuilder]: For program point L585-6(lines 585 589) no Hoare annotation was computed. [2023-11-29 01:16:51,802 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 585) no Hoare annotation was computed. [2023-11-29 01:16:51,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 619) no Hoare annotation was computed. [2023-11-29 01:16:51,803 INFO L899 garLoopResultBuilder]: For program point L12(line 12) no Hoare annotation was computed. [2023-11-29 01:16:51,803 INFO L899 garLoopResultBuilder]: For program point L619(line 619) no Hoare annotation was computed. [2023-11-29 01:16:51,803 INFO L895 garLoopResultBuilder]: At program point L586(line 586) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_sll_create_~head~0#1.offset| 0)) (.cse1 (= |ULTIMATE.start_main_~len~0#1| 2))) (or (and (= (select (select |#memory_$Pointer$#2.offset| |ULTIMATE.start_sll_create_~head~0#1.base|) 4) 0) (= (select |#valid| |ULTIMATE.start_sll_create_~head~0#1.base|) 1) .cse0 (= (select (select |#memory_$Pointer$#2.base| |ULTIMATE.start_sll_create_~head~0#1.base|) 4) 0) (= |ULTIMATE.start_sll_create_~len#1| 1) .cse1) (and (= 2 |ULTIMATE.start_sll_create_~len#1|) .cse0 (= |ULTIMATE.start_sll_create_~head~0#1.base| 0) .cse1))) [2023-11-29 01:16:51,803 INFO L899 garLoopResultBuilder]: For program point L619-1(lines 619 621) no Hoare annotation was computed. [2023-11-29 01:16:51,803 INFO L899 garLoopResultBuilder]: For program point L12-2(line 12) no Hoare annotation was computed. [2023-11-29 01:16:51,803 INFO L899 garLoopResultBuilder]: For program point L586-1(line 586) no Hoare annotation was computed. [2023-11-29 01:16:51,803 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 585) no Hoare annotation was computed. [2023-11-29 01:16:51,804 INFO L895 garLoopResultBuilder]: At program point L611-2(lines 611 618) the Hoare annotation is: (let ((.cse6 (<= 1 |ULTIMATE.start_main_~count~0#1|)) (.cse1 (= |ULTIMATE.start_main_~ptr~0#1.offset| 0)) (.cse3 (= |ULTIMATE.start_main_~len~0#1| 2))) (or (let ((.cse0 (select (select |#memory_$Pointer$#2.base| |ULTIMATE.start_main_~ptr~0#1.base|) 4))) (let ((.cse2 (select (select |#memory_$Pointer$#2.base| .cse0) 4))) (and (= (select (select |#memory_$Pointer$#2.offset| .cse0) 4) 0) .cse1 (= |ULTIMATE.start_main_~count~0#1| 0) (= (select (select |#memory_$Pointer$#2.base| .cse2) 4) 0) (not (= |ULTIMATE.start_main_~ptr~0#1.base| .cse2)) .cse3 (= (select (select |#memory_$Pointer$#2.offset| .cse2) 4) 0) (not (= .cse2 .cse0)) (= (select (select |#memory_$Pointer$#2.offset| |ULTIMATE.start_main_~ptr~0#1.base|) 4) 0)))) (and (= |ULTIMATE.start_main_~count~0#1| 1) .cse1 (exists ((|v_ULTIMATE.start_main_~ptr~0#1.base_108| Int)) (let ((.cse5 (select (select |#memory_$Pointer$#2.base| |v_ULTIMATE.start_main_~ptr~0#1.base_108|) 4))) (let ((.cse4 (select (select |#memory_$Pointer$#2.base| .cse5) 4))) (and (not (= |v_ULTIMATE.start_main_~ptr~0#1.base_108| .cse4)) (= (select (select |#memory_$Pointer$#2.offset| .cse4) 4) 0) (= (select (select |#memory_$Pointer$#2.offset| .cse5) 4) 0) (= (select (select |#memory_$Pointer$#2.offset| |v_ULTIMATE.start_main_~ptr~0#1.base_108|) 4) 0) (not (= .cse4 .cse5)) (= (select (select |#memory_$Pointer$#2.base| .cse4) 4) 0) (= |ULTIMATE.start_main_~ptr~0#1.base| .cse5))))) .cse3) (and (<= |ULTIMATE.start_main_~count~0#1| 3) .cse6 .cse1 (= |ULTIMATE.start_main_~ptr~0#1.base| 0) .cse3) (and (<= |ULTIMATE.start_main_~count~0#1| 2) .cse6 .cse1 .cse3 (exists ((|v_ULTIMATE.start_main_~ptr~0#1.base_108| Int)) (let ((.cse8 (select (select |#memory_$Pointer$#2.base| |v_ULTIMATE.start_main_~ptr~0#1.base_108|) 4))) (let ((.cse7 (select (select |#memory_$Pointer$#2.base| .cse8) 4))) (and (not (= |v_ULTIMATE.start_main_~ptr~0#1.base_108| .cse7)) (= (select (select |#memory_$Pointer$#2.offset| .cse7) 4) 0) (= (select (select |#memory_$Pointer$#2.offset| .cse8) 4) 0) (= (select (select |#memory_$Pointer$#2.offset| |v_ULTIMATE.start_main_~ptr~0#1.base_108|) 4) 0) (not (= .cse7 .cse8)) (= (select (select |#memory_$Pointer$#2.base| .cse7) 4) 0) (= .cse7 |ULTIMATE.start_main_~ptr~0#1.base|)))))))) [2023-11-29 01:16:51,804 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2023-11-29 01:16:51,804 INFO L899 garLoopResultBuilder]: For program point L611-3(lines 611 618) no Hoare annotation was computed. [2023-11-29 01:16:51,804 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 619) no Hoare annotation was computed. [2023-11-29 01:16:51,804 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2023-11-29 01:16:51,804 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 617) no Hoare annotation was computed. [2023-11-29 01:16:51,804 INFO L895 garLoopResultBuilder]: At program point L600(line 600) the Hoare annotation is: (let ((.cse1 (select (select |#memory_$Pointer$#1.base| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|))) (let ((.cse0 (select (select |#memory_$Pointer$#2.base| .cse1) 4))) (and (= (select (select |#memory_$Pointer$#2.base| .cse0) 4) 0) (= (select |#valid| .cse0) 1) (not (= .cse1 .cse0)) (= |ULTIMATE.start_sll_prepend_~head#1.base| |ULTIMATE.start_main_~#s~0#1.base|) (= (select |#valid| .cse1) 1) (= (select (select |#memory_$Pointer$#2.offset| .cse1) 4) 0) (= |ULTIMATE.start_sll_prepend_~head#1.offset| |ULTIMATE.start_main_~#s~0#1.offset|) (= |ULTIMATE.start_main_~len~0#1| 2) (= (select (select |#memory_$Pointer$#1.offset| |ULTIMATE.start_main_~#s~0#1.base|) |ULTIMATE.start_main_~#s~0#1.offset|) 0) (= (select (select |#memory_$Pointer$#2.offset| .cse0) 4) 0)))) [2023-11-29 01:16:51,804 INFO L899 garLoopResultBuilder]: For program point L600-1(line 600) no Hoare annotation was computed. [2023-11-29 01:16:51,804 INFO L899 garLoopResultBuilder]: For program point main_ERROR#1(lines 604 626) no Hoare annotation was computed. [2023-11-29 01:16:51,804 INFO L899 garLoopResultBuilder]: For program point L592(lines 592 598) no Hoare annotation was computed. [2023-11-29 01:16:51,805 INFO L899 garLoopResultBuilder]: For program point L617(line 617) no Hoare annotation was computed. [2023-11-29 01:16:51,805 INFO L899 garLoopResultBuilder]: For program point L617-1(line 617) no Hoare annotation was computed. [2023-11-29 01:16:51,805 INFO L899 garLoopResultBuilder]: For program point L613(lines 613 615) no Hoare annotation was computed. [2023-11-29 01:16:51,805 INFO L899 garLoopResultBuilder]: For program point L576(lines 576 578) no Hoare annotation was computed. [2023-11-29 01:16:51,805 INFO L899 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2023-11-29 01:16:51,805 INFO L895 garLoopResultBuilder]: At program point $Ultimate##0(lines 574 582) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#memory_$Pointer$#2.base)| |#memory_$Pointer$#2.base|) (= |#memory_int#2| |old(#memory_int#2)|) (= |#memory_$Pointer$#2.offset| |old(#memory_$Pointer$#2.offset)|) (= |old(#valid)| |#valid|)) [2023-11-29 01:16:51,805 INFO L899 garLoopResultBuilder]: For program point node_createEXIT(lines 574 582) no Hoare annotation was computed. [2023-11-29 01:16:51,808 INFO L445 BasicCegarLoop]: Path program histogram: [7, 2, 1, 1, 1, 1, 1, 1] [2023-11-29 01:16:51,809 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-11-29 01:16:51,818 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.offset[~head~0!base][4] could not be translated [2023-11-29 01:16:51,819 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[~head~0!base][4]][4] could not be translated [2023-11-29 01:16:51,819 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[~head~0!base] could not be translated [2023-11-29 01:16:51,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[#memory_$Pointer$#2.base[~head~0!base][4]] could not be translated [2023-11-29 01:16:51,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[~head~0!base][4]][4] could not be translated [2023-11-29 01:16:51,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[~head~0!base][4] could not be translated [2023-11-29 01:16:51,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.offset[~head~0!base][4] could not be translated [2023-11-29 01:16:51,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #valid[~head~0!base] could not be translated [2023-11-29 01:16:51,820 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[~head~0!base][4] could not be translated [2023-11-29 01:16:51,824 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[~ptr~0!base][4]][4] could not be translated [2023-11-29 01:16:51,824 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[~ptr~0!base][4]][4]][4] could not be translated [2023-11-29 01:16:51,824 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[~ptr~0!base][4]][4] could not be translated [2023-11-29 01:16:51,824 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[~ptr~0!base][4]][4]][4] could not be translated [2023-11-29 01:16:51,825 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[~ptr~0!base][4]][4] could not be translated [2023-11-29 01:16:51,825 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[~ptr~0!base][4] could not be translated [2023-11-29 01:16:51,825 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.offset[~ptr~0!base][4] could not be translated [2023-11-29 01:16:51,825 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~ptr~0#1.base_108 : int :: (((((!(v_ULTIMATE.start_main_~ptr~0#1.base_108 == #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]) && #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]][4] == 0) && #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4] == 0) && #memory_$Pointer$#2.offset[v_ULTIMATE.start_main_~ptr~0#1.base_108][4] == 0) && !(#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4] == #memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4])) && #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]][4] == 0) && ~ptr~0!base == #memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]) could not be translated [2023-11-29 01:16:51,825 WARN L1572 BoogieBacktranslator]: Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~ptr~0#1.base_108 : int :: (((((!(v_ULTIMATE.start_main_~ptr~0#1.base_108 == #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]) && #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]][4] == 0) && #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4] == 0) && #memory_$Pointer$#2.offset[v_ULTIMATE.start_main_~ptr~0#1.base_108][4] == 0) && !(#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4] == #memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4])) && #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]][4] == 0) && #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4] == ~ptr~0!base) could not be translated [2023-11-29 01:16:51,826 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.11 01:16:51 BoogieIcfgContainer [2023-11-29 01:16:51,826 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-29 01:16:51,826 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-11-29 01:16:51,826 INFO L270 PluginConnector]: Initializing Witness Printer... [2023-11-29 01:16:51,826 INFO L274 PluginConnector]: Witness Printer initialized [2023-11-29 01:16:51,827 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 01:15:43" (3/4) ... [2023-11-29 01:16:51,828 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-11-29 01:16:51,831 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure node_create [2023-11-29 01:16:51,834 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-11-29 01:16:51,835 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2023-11-29 01:16:51,835 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2023-11-29 01:16:51,835 INFO L943 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-11-29 01:16:51,917 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/witness.graphml [2023-11-29 01:16:51,918 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/bin/uautomizer-verify-BQ2R08f2Ya/witness.yml [2023-11-29 01:16:51,918 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-11-29 01:16:51,918 INFO L158 Benchmark]: Toolchain (without parser) took 69498.08ms. Allocated memory was 174.1MB in the beginning and 996.1MB in the end (delta: 822.1MB). Free memory was 143.2MB in the beginning and 537.3MB in the end (delta: -394.0MB). Peak memory consumption was 428.6MB. Max. memory is 16.1GB. [2023-11-29 01:16:51,919 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-29 01:16:51,919 INFO L158 Benchmark]: CACSL2BoogieTranslator took 382.20ms. Allocated memory is still 174.1MB. Free memory was 143.2MB in the beginning and 125.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-11-29 01:16:51,919 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.88ms. Allocated memory is still 174.1MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:16:51,920 INFO L158 Benchmark]: Boogie Preprocessor took 50.02ms. Allocated memory is still 174.1MB. Free memory was 123.8MB in the beginning and 120.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-11-29 01:16:51,920 INFO L158 Benchmark]: RCFGBuilder took 406.74ms. Allocated memory is still 174.1MB. Free memory was 120.7MB in the beginning and 102.2MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-11-29 01:16:51,920 INFO L158 Benchmark]: TraceAbstraction took 68518.44ms. Allocated memory was 174.1MB in the beginning and 996.1MB in the end (delta: 822.1MB). Free memory was 101.8MB in the beginning and 542.5MB in the end (delta: -440.7MB). Peak memory consumption was 384.6MB. Max. memory is 16.1GB. [2023-11-29 01:16:51,921 INFO L158 Benchmark]: Witness Printer took 91.60ms. Allocated memory is still 996.1MB. Free memory was 542.5MB in the beginning and 537.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-11-29 01:16:51,923 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 123.7MB. Free memory is still 97.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 382.20ms. Allocated memory is still 174.1MB. Free memory was 143.2MB in the beginning and 125.9MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.88ms. Allocated memory is still 174.1MB. Free memory was 125.9MB in the beginning and 123.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.02ms. Allocated memory is still 174.1MB. Free memory was 123.8MB in the beginning and 120.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 406.74ms. Allocated memory is still 174.1MB. Free memory was 120.7MB in the beginning and 102.2MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 68518.44ms. Allocated memory was 174.1MB in the beginning and 996.1MB in the end (delta: 822.1MB). Free memory was 101.8MB in the beginning and 542.5MB in the end (delta: -440.7MB). Peak memory consumption was 384.6MB. Max. memory is 16.1GB. * Witness Printer took 91.60ms. Allocated memory is still 996.1MB. Free memory was 542.5MB in the beginning and 537.3MB in the end (delta: 5.2MB). 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_$Pointer$#2.offset[~head~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[~head~0!base][4]][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[~head~0!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[#memory_$Pointer$#2.base[~head~0!base][4]] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[~head~0!base][4]][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[~head~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.offset[~head~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #valid[~head~0!base] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[~head~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[~ptr~0!base][4]][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[~ptr~0!base][4]][4]][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[~ptr~0!base][4]][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[~ptr~0!base][4]][4]][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[~ptr~0!base][4]][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.base[~ptr~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: ArrayAccessExpression #memory_$Pointer$#2.offset[~ptr~0!base][4] could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~ptr~0#1.base_108 : int :: (((((!(v_ULTIMATE.start_main_~ptr~0#1.base_108 == #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]) && #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]][4] == 0) && #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4] == 0) && #memory_$Pointer$#2.offset[v_ULTIMATE.start_main_~ptr~0#1.base_108][4] == 0) && !(#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4] == #memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4])) && #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]][4] == 0) && ~ptr~0!base == #memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]) could not be translated - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: QuantifierExpression (exists v_ULTIMATE.start_main_~ptr~0#1.base_108 : int :: (((((!(v_ULTIMATE.start_main_~ptr~0#1.base_108 == #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]) && #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]][4] == 0) && #memory_$Pointer$#2.offset[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4] == 0) && #memory_$Pointer$#2.offset[v_ULTIMATE.start_main_~ptr~0#1.base_108][4] == 0) && !(#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4] == #memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4])) && #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4]][4] == 0) && #memory_$Pointer$#2.base[#memory_$Pointer$#2.base[v_ULTIMATE.start_main_~ptr~0#1.base_108][4]][4] == ~ptr~0!base) 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: 585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 585]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 617]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 619]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 68.4s, OverallIterations: 15, TraceHistogramMax: 96, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 19.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1867 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1866 mSDsluCounter, 1495 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1302 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2754 IncrementalHoareTripleChecker+Invalid, 2771 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 193 mSDtfsCounter, 2754 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3033 GetRequests, 2100 SyntacticMatches, 3 SemanticMatches, 930 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45116 ImplicationChecksByTransitivity, 39.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=408occurred in iteration=14, InterpolantAutomatonStates: 628, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 15 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 12 PreInvPairs, 23 NumberOfFragments, 560 HoareAnnotationTreeSize, 12 FomulaSimplifications, 96 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 4.4s SatisfiabilityAnalysisTime, 39.3s InterpolantComputationTime, 2843 NumberOfCodeBlocks, 2571 NumberOfCodeBlocksAsserted, 111 NumberOfCheckSat, 3301 ConstructedInterpolants, 12 QuantifiedInterpolants, 8522 SizeOfPredicates, 133 NumberOfNonLiveVariables, 7565 ConjunctsInSsa, 358 ConjunctsInUnsatCore, 33 InterpolantComputations, 8 PerfectInterpolantSequences, 54744/89449 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 6 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: ((((len <= 0) && (len == 2)) || ((len == 1) && (len == 2))) || ((2 == len) && (len == 2))) - InvariantResult [Line: 611]: Loop Invariant Derived loop invariant: (((((count == 0) && (len == 2)) || ((count == 1) && (len == 2))) || (((count <= 3) && (1 <= count)) && (len == 2))) || (((count <= 2) && (1 <= count)) && (len == 2))) RESULT: Ultimate proved your program to be correct! [2023-11-29 01:16:51,943 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dfd40ad1-7800-4fa1-8807-871e3df395a6/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