./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/busybox-1.22.0/sync-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cf1a7837 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_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/config/AutomizerReach.xml -i ../../sv-benchmarks/c/busybox-1.22.0/sync-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl --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 64bit --witnessprinter.graph.data.programhash 44ca4ea6e22cf95593949730a2f14b0938b333c551594e321e28834d54531d57 --- Real Ultimate output --- This is Ultimate 0.2.3-dev-cf1a783 [2023-11-12 02:17:24,891 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-12 02:17:24,968 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/config/svcomp-Overflow-64bit-Automizer_Default.epf [2023-11-12 02:17:24,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-12 02:17:24,977 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-12 02:17:25,024 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-12 02:17:25,026 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-12 02:17:25,027 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-12 02:17:25,028 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-12 02:17:25,033 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-12 02:17:25,034 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-12 02:17:25,035 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-12 02:17:25,035 INFO L153 SettingsManager]: * Use SBE=true [2023-11-12 02:17:25,037 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-12 02:17:25,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-12 02:17:25,038 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-12 02:17:25,039 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-12 02:17:25,039 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-12 02:17:25,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-12 02:17:25,040 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-12 02:17:25,040 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-12 02:17:25,041 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-12 02:17:25,041 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-12 02:17:25,042 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-12 02:17:25,043 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-12 02:17:25,043 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-12 02:17:25,044 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-12 02:17:25,044 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:25,045 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-12 02:17:25,045 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-12 02:17:25,046 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-12 02:17:25,047 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-12 02:17:25,047 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-12 02:17:25,047 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-12 02:17:25,047 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-12 02:17:25,048 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-12 02:17:25,048 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-12 02:17:25,048 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-11-12 02:17:25,048 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_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44ca4ea6e22cf95593949730a2f14b0938b333c551594e321e28834d54531d57 [2023-11-12 02:17:25,331 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-12 02:17:25,357 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-12 02:17:25,361 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-12 02:17:25,363 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-12 02:17:25,363 INFO L274 PluginConnector]: CDTParser initialized [2023-11-12 02:17:25,365 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/../../sv-benchmarks/c/busybox-1.22.0/sync-1.i [2023-11-12 02:17:28,614 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-12 02:17:29,107 INFO L384 CDTParser]: Found 1 translation units. [2023-11-12 02:17:29,107 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/sv-benchmarks/c/busybox-1.22.0/sync-1.i [2023-11-12 02:17:29,145 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/data/a3786ea6b/e95d87ae91ea40cc878afc1a5061434d/FLAGcc4d79c5e [2023-11-12 02:17:29,163 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/data/a3786ea6b/e95d87ae91ea40cc878afc1a5061434d [2023-11-12 02:17:29,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-12 02:17:29,173 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-12 02:17:29,177 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:29,177 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-12 02:17:29,183 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-12 02:17:29,186 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:29" (1/1) ... [2023-11-12 02:17:29,187 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1da59b7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:29, skipping insertion in model container [2023-11-12 02:17:29,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 02:17:29" (1/1) ... [2023-11-12 02:17:29,273 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-12 02:17:30,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:30,539 INFO L202 MainTranslator]: Completed pre-run [2023-11-12 02:17:30,739 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-12 02:17:30,868 WARN L672 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-12 02:17:30,877 INFO L206 MainTranslator]: Completed translation [2023-11-12 02:17:30,877 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30 WrapperNode [2023-11-12 02:17:30,877 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-12 02:17:30,879 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:30,879 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-12 02:17:30,879 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-12 02:17:30,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (1/1) ... [2023-11-12 02:17:30,928 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (1/1) ... [2023-11-12 02:17:30,974 INFO L138 Inliner]: procedures = 540, calls = 128, calls flagged for inlining = 16, calls inlined = 15, statements flattened = 429 [2023-11-12 02:17:30,974 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-12 02:17:30,975 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-12 02:17:30,975 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-12 02:17:30,975 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-12 02:17:30,985 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (1/1) ... [2023-11-12 02:17:30,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (1/1) ... [2023-11-12 02:17:30,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (1/1) ... [2023-11-12 02:17:30,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (1/1) ... [2023-11-12 02:17:31,057 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (1/1) ... [2023-11-12 02:17:31,063 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (1/1) ... [2023-11-12 02:17:31,109 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (1/1) ... [2023-11-12 02:17:31,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (1/1) ... [2023-11-12 02:17:31,134 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-12 02:17:31,144 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-12 02:17:31,147 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-12 02:17:31,148 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-12 02:17:31,150 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (1/1) ... [2023-11-12 02:17:31,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-12 02:17:31,184 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:31,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-12 02:17:31,220 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-12 02:17:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-12 02:17:31,245 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2023-11-12 02:17:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2023-11-12 02:17:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-12 02:17:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-12 02:17:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-12 02:17:31,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-12 02:17:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-12 02:17:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-12 02:17:31,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-12 02:17:31,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2023-11-12 02:17:31,247 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2023-11-12 02:17:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2023-11-12 02:17:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2023-11-12 02:17:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-12 02:17:31,248 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-12 02:17:31,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-12 02:17:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-12 02:17:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-12 02:17:31,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-12 02:17:31,640 INFO L236 CfgBuilder]: Building ICFG [2023-11-12 02:17:31,642 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-12 02:17:32,239 INFO L277 CfgBuilder]: Performing block encoding [2023-11-12 02:17:32,248 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-12 02:17:32,249 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-11-12 02:17:32,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:32 BoogieIcfgContainer [2023-11-12 02:17:32,252 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-12 02:17:32,256 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-12 02:17:32,256 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-12 02:17:32,259 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-12 02:17:32,260 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 02:17:29" (1/3) ... [2023-11-12 02:17:32,261 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4193e079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:32, skipping insertion in model container [2023-11-12 02:17:32,262 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 02:17:30" (2/3) ... [2023-11-12 02:17:32,264 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4193e079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 02:17:32, skipping insertion in model container [2023-11-12 02:17:32,264 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 02:17:32" (3/3) ... [2023-11-12 02:17:32,265 INFO L112 eAbstractionObserver]: Analyzing ICFG sync-1.i [2023-11-12 02:17:32,288 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-12 02:17:32,289 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2023-11-12 02:17:32,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-12 02:17:32,387 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;@278fdfaf, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-11-12 02:17:32,387 INFO L358 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2023-11-12 02:17:32,395 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 109 states have (on average 1.7064220183486238) internal successors, (186), 149 states have internal predecessors, (186), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:32,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-12 02:17:32,401 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:32,402 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-12 02:17:32,403 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:32,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:32,428 INFO L85 PathProgramCache]: Analyzing trace with hash 1603013, now seen corresponding path program 1 times [2023-11-12 02:17:32,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:32,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096375285] [2023-11-12 02:17:32,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:32,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:32,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:32,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:32,988 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096375285] [2023-11-12 02:17:32,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096375285] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:32,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:32,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:32,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306326124] [2023-11-12 02:17:32,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:32,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:32,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:33,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:33,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:33,043 INFO L87 Difference]: Start difference. First operand has 158 states, 109 states have (on average 1.7064220183486238) internal successors, (186), 149 states have internal predecessors, (186), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:33,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:33,147 INFO L93 Difference]: Finished difference Result 314 states and 400 transitions. [2023-11-12 02:17:33,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:33,150 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-12 02:17:33,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:33,162 INFO L225 Difference]: With dead ends: 314 [2023-11-12 02:17:33,162 INFO L226 Difference]: Without dead ends: 157 [2023-11-12 02:17:33,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:33,177 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 1 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:33,183 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 366 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:33,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2023-11-12 02:17:33,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 157. [2023-11-12 02:17:33,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 109 states have (on average 1.614678899082569) internal successors, (176), 148 states have internal predecessors, (176), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:33,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 188 transitions. [2023-11-12 02:17:33,240 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 188 transitions. Word has length 4 [2023-11-12 02:17:33,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:33,241 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 188 transitions. [2023-11-12 02:17:33,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:33,241 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 188 transitions. [2023-11-12 02:17:33,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2023-11-12 02:17:33,242 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:33,242 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2023-11-12 02:17:33,243 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-12 02:17:33,243 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:33,244 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:33,244 INFO L85 PathProgramCache]: Analyzing trace with hash 510786401, now seen corresponding path program 1 times [2023-11-12 02:17:33,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:33,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624323254] [2023-11-12 02:17:33,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:33,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:33,423 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:33,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:33,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624323254] [2023-11-12 02:17:33,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624323254] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:33,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166340936] [2023-11-12 02:17:33,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:33,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:33,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:33,435 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:33,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-12 02:17:33,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:33,653 INFO L262 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:17:33,658 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:33,707 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:33,707 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:33,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166340936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:33,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:33,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-12 02:17:33,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286629695] [2023-11-12 02:17:33,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:33,711 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:17:33,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:33,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:17:33,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:33,713 INFO L87 Difference]: Start difference. First operand 157 states and 188 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-12 02:17:33,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:33,785 INFO L93 Difference]: Finished difference Result 157 states and 188 transitions. [2023-11-12 02:17:33,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:17:33,786 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2023-11-12 02:17:33,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:33,789 INFO L225 Difference]: With dead ends: 157 [2023-11-12 02:17:33,791 INFO L226 Difference]: Without dead ends: 156 [2023-11-12 02:17:33,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:33,795 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 3 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:33,798 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 533 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:33,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-12 02:17:33,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2023-11-12 02:17:33,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 109 states have (on average 1.6055045871559632) internal successors, (175), 147 states have internal predecessors, (175), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:33,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 187 transitions. [2023-11-12 02:17:33,824 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 187 transitions. Word has length 7 [2023-11-12 02:17:33,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:33,824 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 187 transitions. [2023-11-12 02:17:33,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 states have internal predecessors, (7), 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) [2023-11-12 02:17:33,825 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 187 transitions. [2023-11-12 02:17:33,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-11-12 02:17:33,826 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:33,826 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2023-11-12 02:17:33,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:34,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:34,040 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:34,040 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:34,041 INFO L85 PathProgramCache]: Analyzing trace with hash -1345490686, now seen corresponding path program 1 times [2023-11-12 02:17:34,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:34,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204435303] [2023-11-12 02:17:34,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:34,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:34,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:34,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:17:34,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:34,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204435303] [2023-11-12 02:17:34,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204435303] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:34,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:34,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:34,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570419727] [2023-11-12 02:17:34,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:34,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:34,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:34,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:34,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:34,144 INFO L87 Difference]: Start difference. First operand 156 states and 187 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:34,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:34,164 INFO L93 Difference]: Finished difference Result 156 states and 187 transitions. [2023-11-12 02:17:34,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:34,164 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-11-12 02:17:34,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:34,166 INFO L225 Difference]: With dead ends: 156 [2023-11-12 02:17:34,166 INFO L226 Difference]: Without dead ends: 155 [2023-11-12 02:17:34,167 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:34,168 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 0 mSDsluCounter, 177 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:34,169 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 357 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:34,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2023-11-12 02:17:34,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 153. [2023-11-12 02:17:34,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 107 states have (on average 1.6074766355140186) internal successors, (172), 144 states have internal predecessors, (172), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:34,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 184 transitions. [2023-11-12 02:17:34,183 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 184 transitions. Word has length 8 [2023-11-12 02:17:34,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:34,183 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 184 transitions. [2023-11-12 02:17:34,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-12 02:17:34,183 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 184 transitions. [2023-11-12 02:17:34,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2023-11-12 02:17:34,184 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:34,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:34,185 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-12 02:17:34,185 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:34,185 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:34,185 INFO L85 PathProgramCache]: Analyzing trace with hash -2009343658, now seen corresponding path program 1 times [2023-11-12 02:17:34,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:34,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999892525] [2023-11-12 02:17:34,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:34,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:34,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:17:34,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:34,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:34,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:34,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999892525] [2023-11-12 02:17:34,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999892525] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:34,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268947078] [2023-11-12 02:17:34,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:34,395 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:34,396 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:34,397 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:34,424 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-12 02:17:34,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:34,607 INFO L262 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-12 02:17:34,610 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:34,630 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-12 02:17:34,631 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:34,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268947078] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:34,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:34,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2023-11-12 02:17:34,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280023556] [2023-11-12 02:17:34,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:34,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:34,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:34,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:34,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:34,635 INFO L87 Difference]: Start difference. First operand 153 states and 184 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-12 02:17:34,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:34,673 INFO L93 Difference]: Finished difference Result 153 states and 184 transitions. [2023-11-12 02:17:34,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:34,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 13 [2023-11-12 02:17:34,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:34,675 INFO L225 Difference]: With dead ends: 153 [2023-11-12 02:17:34,676 INFO L226 Difference]: Without dead ends: 151 [2023-11-12 02:17:34,677 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:34,680 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 154 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:34,682 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 190 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:34,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2023-11-12 02:17:34,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2023-11-12 02:17:34,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 107 states have (on average 1.588785046728972) internal successors, (170), 142 states have internal predecessors, (170), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:34,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 182 transitions. [2023-11-12 02:17:34,707 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 182 transitions. Word has length 13 [2023-11-12 02:17:34,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:34,708 INFO L495 AbstractCegarLoop]: Abstraction has 151 states and 182 transitions. [2023-11-12 02:17:34,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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) [2023-11-12 02:17:34,715 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 182 transitions. [2023-11-12 02:17:34,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2023-11-12 02:17:34,716 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:34,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:34,727 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:34,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:34,922 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:34,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:34,923 INFO L85 PathProgramCache]: Analyzing trace with hash 2134856118, now seen corresponding path program 1 times [2023-11-12 02:17:34,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:34,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512399899] [2023-11-12 02:17:34,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:34,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:35,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-11-12 02:17:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:35,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:35,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:35,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512399899] [2023-11-12 02:17:35,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512399899] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:35,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538317641] [2023-11-12 02:17:35,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:35,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:35,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:35,073 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:35,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-12 02:17:35,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:35,274 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:17:35,276 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:35,295 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:35,295 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:17:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:35,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538317641] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:17:35,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:17:35,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-12 02:17:35,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472376983] [2023-11-12 02:17:35,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:17:35,333 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:17:35,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:35,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:17:35,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:35,338 INFO L87 Difference]: Start difference. First operand 151 states and 182 transitions. Second operand has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:17:35,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:35,391 INFO L93 Difference]: Finished difference Result 305 states and 369 transitions. [2023-11-12 02:17:35,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:35,392 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2023-11-12 02:17:35,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:35,394 INFO L225 Difference]: With dead ends: 305 [2023-11-12 02:17:35,394 INFO L226 Difference]: Without dead ends: 160 [2023-11-12 02:17:35,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:35,404 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 4 mSDsluCounter, 700 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 878 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:35,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 878 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:35,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2023-11-12 02:17:35,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2023-11-12 02:17:35,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 116 states have (on average 1.543103448275862) internal successors, (179), 151 states have internal predecessors, (179), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:35,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 191 transitions. [2023-11-12 02:17:35,417 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 191 transitions. Word has length 14 [2023-11-12 02:17:35,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:35,417 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 191 transitions. [2023-11-12 02:17:35,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 7 states have internal predecessors, (24), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-12 02:17:35,417 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 191 transitions. [2023-11-12 02:17:35,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-11-12 02:17:35,418 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:35,418 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:35,429 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:35,625 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:35,625 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:35,626 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:35,626 INFO L85 PathProgramCache]: Analyzing trace with hash 435407314, now seen corresponding path program 2 times [2023-11-12 02:17:35,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:35,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014154428] [2023-11-12 02:17:35,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:35,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:35,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:17:35,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:35,951 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-12 02:17:35,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:35,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014154428] [2023-11-12 02:17:35,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014154428] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:35,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1585753342] [2023-11-12 02:17:35,954 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:17:35,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:35,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:35,955 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:35,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-12 02:17:36,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:17:36,136 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:17:36,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:17:36,142 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:17:36,207 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:36,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1585753342] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:36,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:36,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2023-11-12 02:17:36,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521631019] [2023-11-12 02:17:36,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:36,208 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:36,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:36,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:36,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:17:36,209 INFO L87 Difference]: Start difference. First operand 160 states and 191 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-12 02:17:36,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:36,290 INFO L93 Difference]: Finished difference Result 160 states and 191 transitions. [2023-11-12 02:17:36,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:17:36,291 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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 23 [2023-11-12 02:17:36,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:36,292 INFO L225 Difference]: With dead ends: 160 [2023-11-12 02:17:36,292 INFO L226 Difference]: Without dead ends: 158 [2023-11-12 02:17:36,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:17:36,294 INFO L413 NwaCegarLoop]: 167 mSDtfsCounter, 153 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 509 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:36,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [158 Valid, 509 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:36,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-11-12 02:17:36,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 158. [2023-11-12 02:17:36,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 116 states have (on average 1.5258620689655173) internal successors, (177), 149 states have internal predecessors, (177), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:36,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 189 transitions. [2023-11-12 02:17:36,304 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 189 transitions. Word has length 23 [2023-11-12 02:17:36,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:36,304 INFO L495 AbstractCegarLoop]: Abstraction has 158 states and 189 transitions. [2023-11-12 02:17:36,304 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 5 states have internal predecessors, (12), 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) [2023-11-12 02:17:36,305 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 189 transitions. [2023-11-12 02:17:36,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2023-11-12 02:17:36,305 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:36,306 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:36,317 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:36,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-12 02:17:36,518 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:36,518 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:36,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1899206969, now seen corresponding path program 1 times [2023-11-12 02:17:36,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:36,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951896011] [2023-11-12 02:17:36,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:36,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:36,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:36,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:17:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:36,689 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:17:36,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:36,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951896011] [2023-11-12 02:17:36,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951896011] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:36,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:36,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:36,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269310691] [2023-11-12 02:17:36,691 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:36,691 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:36,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:36,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:36,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:36,693 INFO L87 Difference]: Start difference. First operand 158 states and 189 transitions. Second operand has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-12 02:17:36,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:36,725 INFO L93 Difference]: Finished difference Result 298 states and 361 transitions. [2023-11-12 02:17:36,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:36,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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 28 [2023-11-12 02:17:36,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:36,728 INFO L225 Difference]: With dead ends: 298 [2023-11-12 02:17:36,728 INFO L226 Difference]: Without dead ends: 161 [2023-11-12 02:17:36,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:36,731 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 1 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:36,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 346 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:36,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2023-11-12 02:17:36,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2023-11-12 02:17:36,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 119 states have (on average 1.5126050420168067) internal successors, (180), 152 states have internal predecessors, (180), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:36,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 192 transitions. [2023-11-12 02:17:36,744 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 192 transitions. Word has length 28 [2023-11-12 02:17:36,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:36,745 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 192 transitions. [2023-11-12 02:17:36,745 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.5) internal successors, (17), 3 states have internal predecessors, (17), 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) [2023-11-12 02:17:36,748 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 192 transitions. [2023-11-12 02:17:36,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2023-11-12 02:17:36,749 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:36,750 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:36,750 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-12 02:17:36,750 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:36,750 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:36,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1670523135, now seen corresponding path program 1 times [2023-11-12 02:17:36,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:36,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650540591] [2023-11-12 02:17:36,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:36,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:36,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:36,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-12 02:17:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:36,970 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-12 02:17:36,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:36,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650540591] [2023-11-12 02:17:36,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650540591] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:36,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1394908786] [2023-11-12 02:17:36,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:36,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:36,971 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:36,973 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:37,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-12 02:17:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:37,226 INFO L262 TraceCheckSpWp]: Trace formula consists of 335 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:17:37,229 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:37,293 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:17:37,293 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:17:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-11-12 02:17:37,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1394908786] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:17:37,388 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:17:37,388 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-12 02:17:37,389 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538432100] [2023-11-12 02:17:37,389 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:17:37,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:17:37,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:37,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:17:37,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:17:37,390 INFO L87 Difference]: Start difference. First operand 161 states and 192 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:17:37,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:37,540 INFO L93 Difference]: Finished difference Result 324 states and 392 transitions. [2023-11-12 02:17:37,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:17:37,541 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2023-11-12 02:17:37,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:37,542 INFO L225 Difference]: With dead ends: 324 [2023-11-12 02:17:37,542 INFO L226 Difference]: Without dead ends: 178 [2023-11-12 02:17:37,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:17:37,543 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 7 mSDsluCounter, 1169 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1339 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:37,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1339 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:37,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-12 02:17:37,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 178. [2023-11-12 02:17:37,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 137 states have (on average 1.437956204379562) internal successors, (197), 169 states have internal predecessors, (197), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:37,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 209 transitions. [2023-11-12 02:17:37,553 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 209 transitions. Word has length 31 [2023-11-12 02:17:37,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:37,554 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 209 transitions. [2023-11-12 02:17:37,554 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2023-11-12 02:17:37,554 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 209 transitions. [2023-11-12 02:17:37,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:17:37,556 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:37,556 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:37,564 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-12 02:17:37,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-12 02:17:37,763 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:37,763 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:37,763 INFO L85 PathProgramCache]: Analyzing trace with hash -896302525, now seen corresponding path program 1 times [2023-11-12 02:17:37,763 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:37,763 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460201424] [2023-11-12 02:17:37,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:37,763 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:37,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:37,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:37,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:37,955 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-12 02:17:37,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:37,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460201424] [2023-11-12 02:17:37,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1460201424] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:37,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:37,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:37,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145313228] [2023-11-12 02:17:37,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:37,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:37,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:37,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:37,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:37,958 INFO L87 Difference]: Start difference. First operand 178 states and 209 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-12 02:17:38,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:38,010 INFO L93 Difference]: Finished difference Result 192 states and 225 transitions. [2023-11-12 02:17:38,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:38,011 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 50 [2023-11-12 02:17:38,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:38,014 INFO L225 Difference]: With dead ends: 192 [2023-11-12 02:17:38,014 INFO L226 Difference]: Without dead ends: 190 [2023-11-12 02:17:38,015 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:38,017 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 3 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:38,018 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 341 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:38,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-11-12 02:17:38,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 188. [2023-11-12 02:17:38,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 188 states, 147 states have (on average 1.4285714285714286) internal successors, (210), 179 states have internal predecessors, (210), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:38,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 188 states to 188 states and 222 transitions. [2023-11-12 02:17:38,031 INFO L78 Accepts]: Start accepts. Automaton has 188 states and 222 transitions. Word has length 50 [2023-11-12 02:17:38,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:38,033 INFO L495 AbstractCegarLoop]: Abstraction has 188 states and 222 transitions. [2023-11-12 02:17:38,034 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-12 02:17:38,034 INFO L276 IsEmpty]: Start isEmpty. Operand 188 states and 222 transitions. [2023-11-12 02:17:38,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-12 02:17:38,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:38,042 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:38,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-12 02:17:38,042 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:38,044 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:38,044 INFO L85 PathProgramCache]: Analyzing trace with hash -896300796, now seen corresponding path program 1 times [2023-11-12 02:17:38,045 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:38,045 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985644933] [2023-11-12 02:17:38,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:38,045 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:38,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:38,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:38,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:38,228 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-12 02:17:38,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:38,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985644933] [2023-11-12 02:17:38,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985644933] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:38,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:38,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:38,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189922816] [2023-11-12 02:17:38,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:38,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:38,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:38,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:38,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:38,230 INFO L87 Difference]: Start difference. First operand 188 states and 222 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-12 02:17:38,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:38,265 INFO L93 Difference]: Finished difference Result 188 states and 222 transitions. [2023-11-12 02:17:38,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:38,266 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 50 [2023-11-12 02:17:38,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:38,270 INFO L225 Difference]: With dead ends: 188 [2023-11-12 02:17:38,270 INFO L226 Difference]: Without dead ends: 187 [2023-11-12 02:17:38,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:38,271 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 0 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:38,272 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 344 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:38,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2023-11-12 02:17:38,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 183. [2023-11-12 02:17:38,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 143 states have (on average 1.4265734265734267) internal successors, (204), 174 states have internal predecessors, (204), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:38,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 216 transitions. [2023-11-12 02:17:38,284 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 216 transitions. Word has length 50 [2023-11-12 02:17:38,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:38,286 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 216 transitions. [2023-11-12 02:17:38,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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) [2023-11-12 02:17:38,286 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 216 transitions. [2023-11-12 02:17:38,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2023-11-12 02:17:38,288 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:38,288 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:38,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-11-12 02:17:38,289 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:38,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:38,289 INFO L85 PathProgramCache]: Analyzing trace with hash 867635031, now seen corresponding path program 1 times [2023-11-12 02:17:38,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:38,290 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091210301] [2023-11-12 02:17:38,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:38,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:38,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:38,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:38,499 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-12 02:17:38,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:38,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2091210301] [2023-11-12 02:17:38,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2091210301] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:38,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:38,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:38,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359455147] [2023-11-12 02:17:38,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:38,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:38,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:38,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:38,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:38,504 INFO L87 Difference]: Start difference. First operand 183 states and 216 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-12 02:17:38,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:38,527 INFO L93 Difference]: Finished difference Result 188 states and 221 transitions. [2023-11-12 02:17:38,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:38,528 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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 51 [2023-11-12 02:17:38,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:38,531 INFO L225 Difference]: With dead ends: 188 [2023-11-12 02:17:38,531 INFO L226 Difference]: Without dead ends: 186 [2023-11-12 02:17:38,531 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:38,532 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 1 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:38,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 344 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:38,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2023-11-12 02:17:38,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 186. [2023-11-12 02:17:38,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 146 states have (on average 1.417808219178082) internal successors, (207), 177 states have internal predecessors, (207), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:38,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 219 transitions. [2023-11-12 02:17:38,546 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 219 transitions. Word has length 51 [2023-11-12 02:17:38,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:38,547 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 219 transitions. [2023-11-12 02:17:38,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 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) [2023-11-12 02:17:38,547 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 219 transitions. [2023-11-12 02:17:38,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-12 02:17:38,549 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:38,549 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:38,549 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-12 02:17:38,549 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:38,550 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:38,550 INFO L85 PathProgramCache]: Analyzing trace with hash 1718140994, now seen corresponding path program 1 times [2023-11-12 02:17:38,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:38,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002288632] [2023-11-12 02:17:38,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:38,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:38,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:38,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:38,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:38,715 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-12 02:17:38,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:38,716 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002288632] [2023-11-12 02:17:38,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002288632] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:38,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:38,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-12 02:17:38,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785833194] [2023-11-12 02:17:38,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:38,717 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:38,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:38,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:38,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:38,717 INFO L87 Difference]: Start difference. First operand 186 states and 219 transitions. Second operand has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-11-12 02:17:38,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:38,748 INFO L93 Difference]: Finished difference Result 195 states and 231 transitions. [2023-11-12 02:17:38,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:38,748 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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 53 [2023-11-12 02:17:38,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:38,750 INFO L225 Difference]: With dead ends: 195 [2023-11-12 02:17:38,750 INFO L226 Difference]: Without dead ends: 193 [2023-11-12 02:17:38,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:38,751 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 4 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:38,751 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 342 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:38,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-12 02:17:38,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 190. [2023-11-12 02:17:38,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 150 states have (on average 1.42) internal successors, (213), 181 states have internal predecessors, (213), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:38,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 225 transitions. [2023-11-12 02:17:38,762 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 225 transitions. Word has length 53 [2023-11-12 02:17:38,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:38,762 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 225 transitions. [2023-11-12 02:17:38,762 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 12.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2023-11-12 02:17:38,762 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 225 transitions. [2023-11-12 02:17:38,763 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2023-11-12 02:17:38,763 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:38,763 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:38,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-12 02:17:38,764 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:38,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:38,764 INFO L85 PathProgramCache]: Analyzing trace with hash 602392418, now seen corresponding path program 1 times [2023-11-12 02:17:38,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:38,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947703864] [2023-11-12 02:17:38,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:38,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:38,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:38,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:38,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:38,992 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-12 02:17:38,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:38,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947703864] [2023-11-12 02:17:38,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947703864] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:38,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [598222545] [2023-11-12 02:17:38,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:38,994 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:38,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:38,995 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:39,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-12 02:17:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:39,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-12 02:17:39,286 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:39,330 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-12 02:17:39,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:39,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [598222545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:39,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:39,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [3] total 7 [2023-11-12 02:17:39,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743747665] [2023-11-12 02:17:39,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:39,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:39,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:39,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:39,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:39,333 INFO L87 Difference]: Start difference. First operand 190 states and 225 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2023-11-12 02:17:39,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:39,440 INFO L93 Difference]: Finished difference Result 314 states and 379 transitions. [2023-11-12 02:17:39,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:39,441 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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 54 [2023-11-12 02:17:39,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:39,443 INFO L225 Difference]: With dead ends: 314 [2023-11-12 02:17:39,444 INFO L226 Difference]: Without dead ends: 293 [2023-11-12 02:17:39,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:17:39,445 INFO L413 NwaCegarLoop]: 191 mSDtfsCounter, 133 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:39,445 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 716 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:39,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2023-11-12 02:17:39,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 265. [2023-11-12 02:17:39,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 220 states have (on average 1.481818181818182) internal successors, (326), 251 states have internal predecessors, (326), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:17:39,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 348 transitions. [2023-11-12 02:17:39,462 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 348 transitions. Word has length 54 [2023-11-12 02:17:39,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:39,462 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 348 transitions. [2023-11-12 02:17:39,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 5 states have internal predecessors, (25), 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) [2023-11-12 02:17:39,462 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 348 transitions. [2023-11-12 02:17:39,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-12 02:17:39,463 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:39,463 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:39,477 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:39,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-12 02:17:39,671 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:39,672 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:39,672 INFO L85 PathProgramCache]: Analyzing trace with hash 1824070071, now seen corresponding path program 1 times [2023-11-12 02:17:39,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:39,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686528923] [2023-11-12 02:17:39,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:39,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:39,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:39,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:39,899 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-12 02:17:39,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:39,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686528923] [2023-11-12 02:17:39,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686528923] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:39,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:39,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:17:39,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246226418] [2023-11-12 02:17:39,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:39,901 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:17:39,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:39,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:17:39,902 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-12 02:17:39,902 INFO L87 Difference]: Start difference. First operand 265 states and 348 transitions. Second operand has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-12 02:17:40,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:40,010 INFO L93 Difference]: Finished difference Result 453 states and 595 transitions. [2023-11-12 02:17:40,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:17:40,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 55 [2023-11-12 02:17:40,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:40,013 INFO L225 Difference]: With dead ends: 453 [2023-11-12 02:17:40,013 INFO L226 Difference]: Without dead ends: 281 [2023-11-12 02:17:40,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:40,015 INFO L413 NwaCegarLoop]: 185 mSDtfsCounter, 13 mSDsluCounter, 311 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:40,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 496 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:40,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-11-12 02:17:40,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 267. [2023-11-12 02:17:40,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 222 states have (on average 1.472972972972973) internal successors, (327), 253 states have internal predecessors, (327), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:17:40,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 349 transitions. [2023-11-12 02:17:40,034 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 349 transitions. Word has length 55 [2023-11-12 02:17:40,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:40,034 INFO L495 AbstractCegarLoop]: Abstraction has 267 states and 349 transitions. [2023-11-12 02:17:40,035 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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) [2023-11-12 02:17:40,035 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 349 transitions. [2023-11-12 02:17:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2023-11-12 02:17:40,036 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:40,036 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:40,036 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2023-11-12 02:17:40,036 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:40,037 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:40,037 INFO L85 PathProgramCache]: Analyzing trace with hash -2014178565, now seen corresponding path program 1 times [2023-11-12 02:17:40,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:40,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766043240] [2023-11-12 02:17:40,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:40,038 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:40,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:40,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:40,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:40,234 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-12 02:17:40,234 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:40,234 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766043240] [2023-11-12 02:17:40,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766043240] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:40,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328127944] [2023-11-12 02:17:40,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:40,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:40,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:40,236 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:40,256 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-12 02:17:40,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:40,595 INFO L262 TraceCheckSpWp]: Trace formula consists of 559 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:17:40,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:40,630 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-12 02:17:40,630 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:40,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328127944] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:40,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:40,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2023-11-12 02:17:40,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333592186] [2023-11-12 02:17:40,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:40,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-12 02:17:40,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:40,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-12 02:17:40,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:40,632 INFO L87 Difference]: Start difference. First operand 267 states and 349 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-12 02:17:40,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:40,680 INFO L93 Difference]: Finished difference Result 273 states and 357 transitions. [2023-11-12 02:17:40,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-12 02:17:40,680 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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 57 [2023-11-12 02:17:40,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:40,683 INFO L225 Difference]: With dead ends: 273 [2023-11-12 02:17:40,683 INFO L226 Difference]: Without dead ends: 272 [2023-11-12 02:17:40,685 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:40,685 INFO L413 NwaCegarLoop]: 176 mSDtfsCounter, 8 mSDsluCounter, 332 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:40,686 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 508 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:40,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2023-11-12 02:17:40,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 266. [2023-11-12 02:17:40,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 222 states have (on average 1.4639639639639639) internal successors, (325), 252 states have internal predecessors, (325), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:17:40,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 347 transitions. [2023-11-12 02:17:40,703 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 347 transitions. Word has length 57 [2023-11-12 02:17:40,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:40,703 INFO L495 AbstractCegarLoop]: Abstraction has 266 states and 347 transitions. [2023-11-12 02:17:40,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 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) [2023-11-12 02:17:40,703 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 347 transitions. [2023-11-12 02:17:40,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 02:17:40,704 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:40,704 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:40,716 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:40,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-12 02:17:40,911 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:40,912 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:40,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1984974077, now seen corresponding path program 1 times [2023-11-12 02:17:40,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:40,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467389719] [2023-11-12 02:17:40,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:40,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:40,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:41,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:41,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:41,123 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-12 02:17:41,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:41,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467389719] [2023-11-12 02:17:41,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467389719] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:41,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [352325580] [2023-11-12 02:17:41,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:41,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:41,126 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:41,127 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:41,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-12 02:17:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:41,483 INFO L262 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:17:41,490 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:41,512 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-12 02:17:41,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:17:41,543 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-12 02:17:41,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [352325580] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:17:41,544 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:17:41,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-12 02:17:41,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011908281] [2023-11-12 02:17:41,544 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:17:41,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:17:41,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:41,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:17:41,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:41,546 INFO L87 Difference]: Start difference. First operand 266 states and 347 transitions. Second operand has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-11-12 02:17:41,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:41,634 INFO L93 Difference]: Finished difference Result 315 states and 421 transitions. [2023-11-12 02:17:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:41,635 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 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 58 [2023-11-12 02:17:41,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:41,637 INFO L225 Difference]: With dead ends: 315 [2023-11-12 02:17:41,637 INFO L226 Difference]: Without dead ends: 314 [2023-11-12 02:17:41,638 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:41,638 INFO L413 NwaCegarLoop]: 174 mSDtfsCounter, 12 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:41,639 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 841 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:41,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-12 02:17:41,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 290. [2023-11-12 02:17:41,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 246 states have (on average 1.467479674796748) internal successors, (361), 276 states have internal predecessors, (361), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:17:41,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 383 transitions. [2023-11-12 02:17:41,682 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 383 transitions. Word has length 58 [2023-11-12 02:17:41,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:41,683 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 383 transitions. [2023-11-12 02:17:41,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.166666666666667) internal successors, (43), 7 states have internal predecessors, (43), 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) [2023-11-12 02:17:41,683 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 383 transitions. [2023-11-12 02:17:41,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2023-11-12 02:17:41,683 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:41,684 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:41,695 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:41,884 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-12 02:17:41,884 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:41,885 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:41,885 INFO L85 PathProgramCache]: Analyzing trace with hash -1858871444, now seen corresponding path program 1 times [2023-11-12 02:17:41,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:41,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504600174] [2023-11-12 02:17:41,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:41,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:41,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:42,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:42,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:42,116 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-12 02:17:42,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:42,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504600174] [2023-11-12 02:17:42,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504600174] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:42,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202187868] [2023-11-12 02:17:42,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:42,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:42,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:42,118 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:42,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-12 02:17:42,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:42,486 INFO L262 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:17:42,491 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:42,509 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-12 02:17:42,509 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:17:42,535 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2023-11-12 02:17:42,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202187868] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:17:42,536 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:17:42,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2023-11-12 02:17:42,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807994322] [2023-11-12 02:17:42,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:17:42,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:17:42,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:42,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:17:42,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:42,540 INFO L87 Difference]: Start difference. First operand 290 states and 383 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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) [2023-11-12 02:17:42,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:42,592 INFO L93 Difference]: Finished difference Result 467 states and 603 transitions. [2023-11-12 02:17:42,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:42,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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 58 [2023-11-12 02:17:42,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:42,595 INFO L225 Difference]: With dead ends: 467 [2023-11-12 02:17:42,595 INFO L226 Difference]: Without dead ends: 308 [2023-11-12 02:17:42,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:42,600 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 4 mSDsluCounter, 338 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:42,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 511 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:42,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2023-11-12 02:17:42,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 308. [2023-11-12 02:17:42,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 264 states have (on average 1.4356060606060606) internal successors, (379), 294 states have internal predecessors, (379), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:17:42,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 401 transitions. [2023-11-12 02:17:42,621 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 401 transitions. Word has length 58 [2023-11-12 02:17:42,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:42,622 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 401 transitions. [2023-11-12 02:17:42,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 7 states have internal predecessors, (37), 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) [2023-11-12 02:17:42,622 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 401 transitions. [2023-11-12 02:17:42,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2023-11-12 02:17:42,623 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:42,623 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:42,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:42,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:42,830 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:42,831 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:42,831 INFO L85 PathProgramCache]: Analyzing trace with hash -75550582, now seen corresponding path program 1 times [2023-11-12 02:17:42,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:42,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742962365] [2023-11-12 02:17:42,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:42,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:43,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2023-11-12 02:17:43,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,059 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-12 02:17:43,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:43,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742962365] [2023-11-12 02:17:43,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742962365] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:43,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:43,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:17:43,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540617213] [2023-11-12 02:17:43,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:43,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:43,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:43,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:43,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:43,062 INFO L87 Difference]: Start difference. First operand 308 states and 401 transitions. Second operand has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-12 02:17:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:43,098 INFO L93 Difference]: Finished difference Result 492 states and 648 transitions. [2023-11-12 02:17:43,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:43,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 62 [2023-11-12 02:17:43,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:43,101 INFO L225 Difference]: With dead ends: 492 [2023-11-12 02:17:43,101 INFO L226 Difference]: Without dead ends: 314 [2023-11-12 02:17:43,102 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:43,103 INFO L413 NwaCegarLoop]: 173 mSDtfsCounter, 5 mSDsluCounter, 166 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:43,103 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 339 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:43,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2023-11-12 02:17:43,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 308. [2023-11-12 02:17:43,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 264 states have (on average 1.428030303030303) internal successors, (377), 294 states have internal predecessors, (377), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:17:43,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 399 transitions. [2023-11-12 02:17:43,122 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 399 transitions. Word has length 62 [2023-11-12 02:17:43,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:43,122 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 399 transitions. [2023-11-12 02:17:43,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2023-11-12 02:17:43,122 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 399 transitions. [2023-11-12 02:17:43,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-12 02:17:43,125 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:43,126 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:43,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-12 02:17:43,126 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:43,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:43,127 INFO L85 PathProgramCache]: Analyzing trace with hash 63864566, now seen corresponding path program 1 times [2023-11-12 02:17:43,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:43,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894372534] [2023-11-12 02:17:43,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:43,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:43,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:43,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:17:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,437 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-12 02:17:43,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:43,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894372534] [2023-11-12 02:17:43,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894372534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:43,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:43,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-12 02:17:43,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910928301] [2023-11-12 02:17:43,438 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:43,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-12 02:17:43,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:43,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-12 02:17:43,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:43,440 INFO L87 Difference]: Start difference. First operand 308 states and 399 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-11-12 02:17:43,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:43,464 INFO L93 Difference]: Finished difference Result 450 states and 587 transitions. [2023-11-12 02:17:43,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-12 02:17:43,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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 63 [2023-11-12 02:17:43,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:43,467 INFO L225 Difference]: With dead ends: 450 [2023-11-12 02:17:43,467 INFO L226 Difference]: Without dead ends: 282 [2023-11-12 02:17:43,469 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-12 02:17:43,469 INFO L413 NwaCegarLoop]: 154 mSDtfsCounter, 94 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 97 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:43,471 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [97 Valid, 201 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:43,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-11-12 02:17:43,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 282. [2023-11-12 02:17:43,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 246 states have (on average 1.386178861788618) internal successors, (341), 270 states have internal predecessors, (341), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-12 02:17:43,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 359 transitions. [2023-11-12 02:17:43,494 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 359 transitions. Word has length 63 [2023-11-12 02:17:43,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:43,495 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 359 transitions. [2023-11-12 02:17:43,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2023-11-12 02:17:43,495 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 359 transitions. [2023-11-12 02:17:43,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-12 02:17:43,496 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:43,496 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:43,497 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-12 02:17:43,497 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:43,498 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:43,498 INFO L85 PathProgramCache]: Analyzing trace with hash 63866488, now seen corresponding path program 1 times [2023-11-12 02:17:43,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:43,498 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137238417] [2023-11-12 02:17:43,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:43,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:43,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:43,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:17:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:43,977 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-12 02:17:43,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:43,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137238417] [2023-11-12 02:17:43,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137238417] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:43,978 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:43,978 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:17:43,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625389449] [2023-11-12 02:17:43,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:43,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:17:43,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:43,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:17:43,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:43,980 INFO L87 Difference]: Start difference. First operand 282 states and 359 transitions. Second operand has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 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) [2023-11-12 02:17:44,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:44,197 INFO L93 Difference]: Finished difference Result 438 states and 563 transitions. [2023-11-12 02:17:44,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:17:44,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 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 63 [2023-11-12 02:17:44,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:44,200 INFO L225 Difference]: With dead ends: 438 [2023-11-12 02:17:44,200 INFO L226 Difference]: Without dead ends: 421 [2023-11-12 02:17:44,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:17:44,201 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 124 mSDsluCounter, 591 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:44,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 777 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:17:44,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2023-11-12 02:17:44,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 328. [2023-11-12 02:17:44,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 290 states have (on average 1.403448275862069) internal successors, (407), 314 states have internal predecessors, (407), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:17:44,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 429 transitions. [2023-11-12 02:17:44,225 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 429 transitions. Word has length 63 [2023-11-12 02:17:44,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:44,225 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 429 transitions. [2023-11-12 02:17:44,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.8) internal successors, (29), 6 states have internal predecessors, (29), 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) [2023-11-12 02:17:44,225 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 429 transitions. [2023-11-12 02:17:44,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2023-11-12 02:17:44,226 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:44,226 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:44,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2023-11-12 02:17:44,227 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:44,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:44,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1979861303, now seen corresponding path program 1 times [2023-11-12 02:17:44,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:44,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299255545] [2023-11-12 02:17:44,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:44,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:44,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:44,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:44,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:44,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:17:44,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:44,625 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-12 02:17:44,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:44,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299255545] [2023-11-12 02:17:44,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299255545] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:44,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:44,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-12 02:17:44,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5060548] [2023-11-12 02:17:44,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:44,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:17:44,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:44,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:17:44,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:44,627 INFO L87 Difference]: Start difference. First operand 328 states and 429 transitions. Second operand has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2023-11-12 02:17:44,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:44,854 INFO L93 Difference]: Finished difference Result 421 states and 541 transitions. [2023-11-12 02:17:44,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-12 02:17:44,855 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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 64 [2023-11-12 02:17:44,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:44,857 INFO L225 Difference]: With dead ends: 421 [2023-11-12 02:17:44,858 INFO L226 Difference]: Without dead ends: 419 [2023-11-12 02:17:44,858 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:17:44,859 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 119 mSDsluCounter, 713 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 942 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:44,861 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 942 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-12 02:17:44,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2023-11-12 02:17:44,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 330. [2023-11-12 02:17:44,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 330 states, 292 states have (on average 1.393835616438356) internal successors, (407), 316 states have internal predecessors, (407), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:17:44,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 429 transitions. [2023-11-12 02:17:44,885 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 429 transitions. Word has length 64 [2023-11-12 02:17:44,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:44,886 INFO L495 AbstractCegarLoop]: Abstraction has 330 states and 429 transitions. [2023-11-12 02:17:44,886 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.0) internal successors, (30), 6 states have internal predecessors, (30), 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) [2023-11-12 02:17:44,886 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 429 transitions. [2023-11-12 02:17:44,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-12 02:17:44,887 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:44,887 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:44,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2023-11-12 02:17:44,887 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:44,888 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:44,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1246158426, now seen corresponding path program 1 times [2023-11-12 02:17:44,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:44,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455634399] [2023-11-12 02:17:44,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:44,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:45,319 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:45,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:45,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:17:45,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:45,341 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-12 02:17:45,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:45,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455634399] [2023-11-12 02:17:45,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455634399] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:45,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:45,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:17:45,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227606989] [2023-11-12 02:17:45,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:45,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:45,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:45,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:45,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:45,344 INFO L87 Difference]: Start difference. First operand 330 states and 429 transitions. Second operand has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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) [2023-11-12 02:17:45,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:45,498 INFO L93 Difference]: Finished difference Result 331 states and 430 transitions. [2023-11-12 02:17:45,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:17:45,500 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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 65 [2023-11-12 02:17:45,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:45,502 INFO L225 Difference]: With dead ends: 331 [2023-11-12 02:17:45,502 INFO L226 Difference]: Without dead ends: 330 [2023-11-12 02:17:45,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:45,503 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 193 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:45,503 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 364 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:45,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2023-11-12 02:17:45,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 329. [2023-11-12 02:17:45,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 292 states have (on average 1.38013698630137) internal successors, (403), 315 states have internal predecessors, (403), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:17:45,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 425 transitions. [2023-11-12 02:17:45,528 INFO L78 Accepts]: Start accepts. Automaton has 329 states and 425 transitions. Word has length 65 [2023-11-12 02:17:45,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:45,529 INFO L495 AbstractCegarLoop]: Abstraction has 329 states and 425 transitions. [2023-11-12 02:17:45,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.75) internal successors, (31), 5 states have internal predecessors, (31), 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) [2023-11-12 02:17:45,529 INFO L276 IsEmpty]: Start isEmpty. Operand 329 states and 425 transitions. [2023-11-12 02:17:45,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:17:45,530 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:45,530 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:45,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2023-11-12 02:17:45,531 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:45,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:45,531 INFO L85 PathProgramCache]: Analyzing trace with hash -23794279, now seen corresponding path program 1 times [2023-11-12 02:17:45,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:45,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103264533] [2023-11-12 02:17:45,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:45,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:45,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:45,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:45,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:45,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:17:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:45,867 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-12 02:17:45,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:45,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103264533] [2023-11-12 02:17:45,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103264533] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:45,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-12 02:17:45,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-12 02:17:45,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437473820] [2023-11-12 02:17:45,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:45,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:45,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:45,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:45,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-12 02:17:45,870 INFO L87 Difference]: Start difference. First operand 329 states and 425 transitions. Second operand has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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) [2023-11-12 02:17:46,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:46,007 INFO L93 Difference]: Finished difference Result 371 states and 482 transitions. [2023-11-12 02:17:46,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:17:46,008 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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 66 [2023-11-12 02:17:46,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:46,012 INFO L225 Difference]: With dead ends: 371 [2023-11-12 02:17:46,012 INFO L226 Difference]: Without dead ends: 370 [2023-11-12 02:17:46,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:46,013 INFO L413 NwaCegarLoop]: 133 mSDtfsCounter, 286 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:46,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 365 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:46,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-12 02:17:46,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 328. [2023-11-12 02:17:46,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 292 states have (on average 1.3664383561643836) internal successors, (399), 314 states have internal predecessors, (399), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:17:46,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 421 transitions. [2023-11-12 02:17:46,040 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 421 transitions. Word has length 66 [2023-11-12 02:17:46,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:46,040 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 421 transitions. [2023-11-12 02:17:46,040 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.0) internal successors, (32), 5 states have internal predecessors, (32), 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) [2023-11-12 02:17:46,040 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 421 transitions. [2023-11-12 02:17:46,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2023-11-12 02:17:46,041 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:46,041 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:46,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2023-11-12 02:17:46,042 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:46,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:46,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1822104205, now seen corresponding path program 1 times [2023-11-12 02:17:46,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:46,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736561225] [2023-11-12 02:17:46,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:46,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:46,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2023-11-12 02:17:46,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,533 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2023-11-12 02:17:46,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:46,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736561225] [2023-11-12 02:17:46,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736561225] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:46,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213632534] [2023-11-12 02:17:46,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:46,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:46,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:46,536 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:46,560 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-12 02:17:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:46,956 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:17:46,959 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:47,007 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-12 02:17:47,007 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:47,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213632534] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:47,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:47,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2023-11-12 02:17:47,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65360290] [2023-11-12 02:17:47,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:47,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-12 02:17:47,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:47,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-12 02:17:47,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2023-11-12 02:17:47,010 INFO L87 Difference]: Start difference. First operand 328 states and 421 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:17:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:47,085 INFO L93 Difference]: Finished difference Result 478 states and 616 transitions. [2023-11-12 02:17:47,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-12 02:17:47,086 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 66 [2023-11-12 02:17:47,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:47,089 INFO L225 Difference]: With dead ends: 478 [2023-11-12 02:17:47,089 INFO L226 Difference]: Without dead ends: 328 [2023-11-12 02:17:47,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2023-11-12 02:17:47,091 INFO L413 NwaCegarLoop]: 151 mSDtfsCounter, 2 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 582 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 [2023-11-12 02:17:47,091 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 582 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:47,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2023-11-12 02:17:47,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2023-11-12 02:17:47,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 292 states have (on average 1.3390410958904109) internal successors, (391), 314 states have internal predecessors, (391), 11 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-12 02:17:47,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 413 transitions. [2023-11-12 02:17:47,118 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 413 transitions. Word has length 66 [2023-11-12 02:17:47,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:47,118 INFO L495 AbstractCegarLoop]: Abstraction has 328 states and 413 transitions. [2023-11-12 02:17:47,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:17:47,119 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 413 transitions. [2023-11-12 02:17:47,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2023-11-12 02:17:47,120 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:47,120 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:47,132 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:47,327 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-12 02:17:47,328 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:47,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:47,328 INFO L85 PathProgramCache]: Analyzing trace with hash -737622468, now seen corresponding path program 1 times [2023-11-12 02:17:47,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:47,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727433499] [2023-11-12 02:17:47,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:47,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:47,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:47,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2023-11-12 02:17:47,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:47,752 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2023-11-12 02:17:47,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:47,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727433499] [2023-11-12 02:17:47,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727433499] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:47,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [75208907] [2023-11-12 02:17:47,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:47,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:47,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:47,755 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:47,772 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-12 02:17:48,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,185 INFO L262 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-12 02:17:48,188 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:48,256 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2023-11-12 02:17:48,256 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-12 02:17:48,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [75208907] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-12 02:17:48,256 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-12 02:17:48,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2023-11-12 02:17:48,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037822190] [2023-11-12 02:17:48,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-12 02:17:48,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:17:48,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:48,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:17:48,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:17:48,258 INFO L87 Difference]: Start difference. First operand 328 states and 413 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:17:48,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:48,377 INFO L93 Difference]: Finished difference Result 356 states and 421 transitions. [2023-11-12 02:17:48,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:48,378 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 67 [2023-11-12 02:17:48,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:48,379 INFO L225 Difference]: With dead ends: 356 [2023-11-12 02:17:48,380 INFO L226 Difference]: Without dead ends: 227 [2023-11-12 02:17:48,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2023-11-12 02:17:48,381 INFO L413 NwaCegarLoop]: 138 mSDtfsCounter, 141 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:48,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 536 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:48,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-12 02:17:48,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 227. [2023-11-12 02:17:48,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 227 states, 196 states have (on average 1.3010204081632653) internal successors, (255), 218 states have internal predecessors, (255), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:48,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 267 transitions. [2023-11-12 02:17:48,406 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 267 transitions. Word has length 67 [2023-11-12 02:17:48,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:48,406 INFO L495 AbstractCegarLoop]: Abstraction has 227 states and 267 transitions. [2023-11-12 02:17:48,406 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-12 02:17:48,407 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 267 transitions. [2023-11-12 02:17:48,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2023-11-12 02:17:48,409 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:48,409 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 4, 4, 4, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:48,423 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:48,623 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:48,623 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:48,624 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:48,624 INFO L85 PathProgramCache]: Analyzing trace with hash 601317253, now seen corresponding path program 1 times [2023-11-12 02:17:48,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:48,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226502236] [2023-11-12 02:17:48,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:48,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:48,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:48,835 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 168 trivial. 0 not checked. [2023-11-12 02:17:48,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:48,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226502236] [2023-11-12 02:17:48,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226502236] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:48,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1603963005] [2023-11-12 02:17:48,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:48,837 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:48,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:48,838 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:48,855 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-12 02:17:49,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:49,327 INFO L262 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-12 02:17:49,330 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:49,390 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-12 02:17:49,390 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:17:49,499 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 1 proven. 22 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2023-11-12 02:17:49,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1603963005] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:17:49,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:17:49,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 14 [2023-11-12 02:17:49,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273935849] [2023-11-12 02:17:49,501 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:17:49,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-12 02:17:49,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:49,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-12 02:17:49,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:17:49,503 INFO L87 Difference]: Start difference. First operand 227 states and 267 transitions. Second operand has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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) [2023-11-12 02:17:49,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:49,629 INFO L93 Difference]: Finished difference Result 436 states and 526 transitions. [2023-11-12 02:17:49,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-12 02:17:49,629 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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 71 [2023-11-12 02:17:49,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:49,631 INFO L225 Difference]: With dead ends: 436 [2023-11-12 02:17:49,632 INFO L226 Difference]: Without dead ends: 262 [2023-11-12 02:17:49,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=112, Unknown=0, NotChecked=0, Total=182 [2023-11-12 02:17:49,633 INFO L413 NwaCegarLoop]: 145 mSDtfsCounter, 6 mSDsluCounter, 709 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 854 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:49,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 854 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:49,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2023-11-12 02:17:49,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 262. [2023-11-12 02:17:49,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 232 states have (on average 1.25) internal successors, (290), 253 states have internal predecessors, (290), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:49,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 302 transitions. [2023-11-12 02:17:49,664 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 302 transitions. Word has length 71 [2023-11-12 02:17:49,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:49,665 INFO L495 AbstractCegarLoop]: Abstraction has 262 states and 302 transitions. [2023-11-12 02:17:49,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 5.285714285714286) internal successors, (74), 14 states have internal predecessors, (74), 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) [2023-11-12 02:17:49,666 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 302 transitions. [2023-11-12 02:17:49,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2023-11-12 02:17:49,667 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:49,667 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:49,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:49,879 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:49,880 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:49,880 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:49,880 INFO L85 PathProgramCache]: Analyzing trace with hash -1461728303, now seen corresponding path program 1 times [2023-11-12 02:17:49,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:49,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015934691] [2023-11-12 02:17:49,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:49,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:49,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:50,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:50,138 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-12 02:17:50,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:50,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015934691] [2023-11-12 02:17:50,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015934691] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:50,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [812589326] [2023-11-12 02:17:50,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:50,139 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:50,140 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:50,141 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:50,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-12 02:17:50,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:50,633 INFO L262 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:17:50,635 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:50,656 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-12 02:17:50,656 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:17:50,722 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2023-11-12 02:17:50,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [812589326] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:17:50,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:17:50,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-11-12 02:17:50,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599532438] [2023-11-12 02:17:50,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:17:50,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-12 02:17:50,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:50,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-12 02:17:50,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:50,724 INFO L87 Difference]: Start difference. First operand 262 states and 302 transitions. Second operand has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 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) [2023-11-12 02:17:50,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:50,773 INFO L93 Difference]: Finished difference Result 272 states and 314 transitions. [2023-11-12 02:17:50,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:50,773 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 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 90 [2023-11-12 02:17:50,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:50,775 INFO L225 Difference]: With dead ends: 272 [2023-11-12 02:17:50,776 INFO L226 Difference]: Without dead ends: 271 [2023-11-12 02:17:50,776 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 178 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-11-12 02:17:50,777 INFO L413 NwaCegarLoop]: 149 mSDtfsCounter, 0 mSDsluCounter, 584 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 733 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:50,777 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 733 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-12 02:17:50,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2023-11-12 02:17:50,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2023-11-12 02:17:50,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 241 states have (on average 1.2406639004149378) internal successors, (299), 262 states have internal predecessors, (299), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:50,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 311 transitions. [2023-11-12 02:17:50,797 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 311 transitions. Word has length 90 [2023-11-12 02:17:50,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:50,798 INFO L495 AbstractCegarLoop]: Abstraction has 271 states and 311 transitions. [2023-11-12 02:17:50,798 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 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) [2023-11-12 02:17:50,798 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 311 transitions. [2023-11-12 02:17:50,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-12 02:17:50,799 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:50,800 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:50,809 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:51,007 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:51,007 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:51,008 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:51,008 INFO L85 PathProgramCache]: Analyzing trace with hash 196326370, now seen corresponding path program 2 times [2023-11-12 02:17:51,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:51,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018116131] [2023-11-12 02:17:51,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:51,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:51,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:51,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:51,351 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-12 02:17:51,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:51,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018116131] [2023-11-12 02:17:51,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018116131] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:51,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818754823] [2023-11-12 02:17:51,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-12 02:17:51,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:51,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:51,353 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:51,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-12 02:17:51,830 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2023-11-12 02:17:51,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-12 02:17:51,832 INFO L262 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-12 02:17:51,839 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:51,923 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-12 02:17:51,924 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:17:52,094 INFO L134 CoverageAnalysis]: Checked inductivity of 321 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2023-11-12 02:17:52,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818754823] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-12 02:17:52,108 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-12 02:17:52,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2023-11-12 02:17:52,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428689634] [2023-11-12 02:17:52,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-12 02:17:52,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-12 02:17:52,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-12 02:17:52,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-12 02:17:52,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-12 02:17:52,111 INFO L87 Difference]: Start difference. First operand 271 states and 311 transitions. Second operand has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-11-12 02:17:52,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-12 02:17:52,200 INFO L93 Difference]: Finished difference Result 271 states and 311 transitions. [2023-11-12 02:17:52,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-12 02:17:52,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 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 99 [2023-11-12 02:17:52,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-12 02:17:52,202 INFO L225 Difference]: With dead ends: 271 [2023-11-12 02:17:52,202 INFO L226 Difference]: Without dead ends: 240 [2023-11-12 02:17:52,203 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2023-11-12 02:17:52,203 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 106 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-12 02:17:52,203 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 455 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-12 02:17:52,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2023-11-12 02:17:52,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 240. [2023-11-12 02:17:52,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 211 states have (on average 1.2180094786729858) internal successors, (257), 231 states have internal predecessors, (257), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-12 02:17:52,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 269 transitions. [2023-11-12 02:17:52,224 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 269 transitions. Word has length 99 [2023-11-12 02:17:52,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-12 02:17:52,225 INFO L495 AbstractCegarLoop]: Abstraction has 240 states and 269 transitions. [2023-11-12 02:17:52,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 11.4) internal successors, (57), 6 states have internal predecessors, (57), 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) [2023-11-12 02:17:52,225 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 269 transitions. [2023-11-12 02:17:52,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2023-11-12 02:17:52,227 INFO L187 NwaCegarLoop]: Found error trace [2023-11-12 02:17:52,227 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-12 02:17:52,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2023-11-12 02:17:52,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2023-11-12 02:17:52,434 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 37 more)] === [2023-11-12 02:17:52,435 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-12 02:17:52,435 INFO L85 PathProgramCache]: Analyzing trace with hash -939386823, now seen corresponding path program 1 times [2023-11-12 02:17:52,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-12 02:17:52,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873025934] [2023-11-12 02:17:52,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:52,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-12 02:17:52,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:58,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2023-11-12 02:17:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:58,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-12 02:17:58,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:58,726 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 0 proven. 29 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2023-11-12 02:17:58,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-12 02:17:58,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873025934] [2023-11-12 02:17:58,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873025934] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-12 02:17:58,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755868242] [2023-11-12 02:17:58,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-12 02:17:58,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-12 02:17:58,727 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 [2023-11-12 02:17:58,728 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-12 02:17:58,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_203c0287-5386-45ee-9bb7-d92d909e8809/bin/uautomizer-verify-uTZkv6EMXl/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-12 02:17:59,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-12 02:17:59,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 815 conjuncts, 70 conjunts are in the unsatisfiable core [2023-11-12 02:17:59,360 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-12 02:17:59,393 INFO L351 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 [2023-11-12 02:17:59,429 INFO L351 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 13 treesize of output 9 [2023-11-12 02:17:59,460 INFO L322 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2023-11-12 02:17:59,460 INFO L351 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 19 treesize of output 16 [2023-11-12 02:17:59,474 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-12 02:17:59,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:17:59,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:17:59,566 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 67 [2023-11-12 02:17:59,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:17:59,588 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 43 [2023-11-12 02:17:59,626 INFO L322 Elim1Store]: treesize reduction 32, result has 31.9 percent of original size [2023-11-12 02:17:59,626 INFO L351 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 62 treesize of output 62 [2023-11-12 02:17:59,669 INFO L322 Elim1Store]: treesize reduction 40, result has 40.3 percent of original size [2023-11-12 02:17:59,669 INFO L351 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 2 new quantified variables, introduced 2 case distinctions, treesize of input 40 treesize of output 44 [2023-11-12 02:17:59,707 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7 [2023-11-12 02:17:59,721 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2023-11-12 02:17:59,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-12 02:17:59,771 INFO L351 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 13 treesize of output 7 [2023-11-12 02:17:59,786 INFO L322 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2023-11-12 02:17:59,791 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 15 [2023-11-12 02:17:59,865 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:17:59,866 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-12 02:17:59,875 INFO L351 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 33 treesize of output 18 [2023-11-12 02:17:59,961 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:17:59,961 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-12 02:17:59,969 INFO L351 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 33 treesize of output 18 [2023-11-12 02:18:00,053 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:18:00,054 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-12 02:18:00,065 INFO L351 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 33 treesize of output 18 [2023-11-12 02:18:00,168 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:18:00,169 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-12 02:18:00,176 INFO L351 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 33 treesize of output 18 [2023-11-12 02:18:00,275 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:18:00,276 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-12 02:18:00,289 INFO L351 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 33 treesize of output 18 [2023-11-12 02:18:00,378 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:18:00,379 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-12 02:18:00,391 INFO L351 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 33 treesize of output 18 [2023-11-12 02:18:00,481 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:18:00,482 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-12 02:18:00,491 INFO L351 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 33 treesize of output 18 [2023-11-12 02:18:00,578 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:18:00,579 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-12 02:18:00,586 INFO L351 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 33 treesize of output 18 [2023-11-12 02:18:00,676 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:18:00,677 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-12 02:18:00,689 INFO L351 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 33 treesize of output 18 [2023-11-12 02:18:00,775 INFO L322 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-12 02:18:00,775 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-12 02:18:00,783 INFO L351 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 33 treesize of output 18 [2023-11-12 02:18:01,076 INFO L134 CoverageAnalysis]: Checked inductivity of 295 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2023-11-12 02:18:01,077 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-12 02:18:05,178 INFO L322 Elim1Store]: treesize reduction 88, result has 46.7 percent of original size [2023-11-12 02:18:05,179 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 6 case distinctions, treesize of input 1433 treesize of output 470 [2023-11-12 02:18:05,309 INFO L322 Elim1Store]: treesize reduction 56, result has 32.5 percent of original size [2023-11-12 02:18:05,310 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 3 case distinctions, treesize of input 515 treesize of output 508 [2023-11-12 02:18:09,194 INFO L322 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2023-11-12 02:18:09,214 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 90920473729 treesize of output 90918750628