./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test1-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test1-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 00:39:08,889 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 00:39:08,951 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-29 00:39:08,956 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 00:39:08,957 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 00:39:08,982 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 00:39:08,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 00:39:08,983 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 00:39:08,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 00:39:08,984 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 00:39:08,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 00:39:08,985 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 00:39:08,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 00:39:08,986 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 00:39:08,987 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 00:39:08,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 00:39:08,988 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 00:39:08,988 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 00:39:08,989 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 00:39:08,989 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 00:39:08,989 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 00:39:08,990 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 00:39:08,990 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 00:39:08,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 00:39:08,991 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-29 00:39:08,992 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-29 00:39:08,992 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 00:39:08,993 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 00:39:08,993 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 00:39:08,993 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 00:39:08,994 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 00:39:08,994 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 00:39:08,995 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 00:39:08,995 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:39:08,995 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 00:39:08,995 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 00:39:08,996 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 00:39:08,996 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 00:39:08,996 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 00:39:08,996 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 00:39:08,996 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 00:39:08,997 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 00:39:08,997 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 00:39:08,997 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 00:39:08,997 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_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 112ef0f8366461020cac5f2ac7dec2d7e41f31b24e653cd7734885d2bb23b087 [2023-11-29 00:39:09,203 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 00:39:09,225 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 00:39:09,227 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 00:39:09,229 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 00:39:09,229 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 00:39:09,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test1-2.i [2023-11-29 00:39:11,923 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 00:39:12,188 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 00:39:12,189 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_nondet_test1-2.i [2023-11-29 00:39:12,209 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/data/9e873268a/182fa3ff08564fa79173ed7a57d82e36/FLAGbe887c561 [2023-11-29 00:39:12,222 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/data/9e873268a/182fa3ff08564fa79173ed7a57d82e36 [2023-11-29 00:39:12,225 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 00:39:12,227 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 00:39:12,228 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 00:39:12,228 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 00:39:12,233 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 00:39:12,233 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:12,234 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49d5618b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12, skipping insertion in model container [2023-11-29 00:39:12,234 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:12,298 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 00:39:12,684 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:39:12,695 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 00:39:12,766 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 00:39:12,833 INFO L206 MainTranslator]: Completed translation [2023-11-29 00:39:12,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12 WrapperNode [2023-11-29 00:39:12,834 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 00:39:12,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 00:39:12,835 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 00:39:12,835 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 00:39:12,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:12,867 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:12,912 INFO L138 Inliner]: procedures = 177, calls = 228, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 925 [2023-11-29 00:39:12,912 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 00:39:12,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 00:39:12,913 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 00:39:12,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 00:39:12,923 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:12,924 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:12,933 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:12,992 INFO L175 MemorySlicer]: Split 211 memory accesses to 3 slices as follows [2, 204, 5]. 97 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 51 writes are split as follows [0, 50, 1]. [2023-11-29 00:39:12,992 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:12,992 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:13,024 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:13,034 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:13,039 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:13,045 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:13,055 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 00:39:13,056 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 00:39:13,056 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 00:39:13,056 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 00:39:13,057 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (1/1) ... [2023-11-29 00:39:13,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 00:39:13,077 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:39:13,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 00:39:13,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 00:39:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-29 00:39:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-29 00:39:13,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-29 00:39:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-29 00:39:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-29 00:39:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-29 00:39:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-29 00:39:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-29 00:39:13,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-29 00:39:13,128 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-29 00:39:13,128 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-29 00:39:13,129 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-29 00:39:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-29 00:39:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 00:39:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-29 00:39:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-29 00:39:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-29 00:39:13,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-29 00:39:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-29 00:39:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-29 00:39:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-29 00:39:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-29 00:39:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 00:39:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-29 00:39:13,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-29 00:39:13,131 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 00:39:13,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 00:39:13,321 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 00:39:13,323 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 00:39:14,356 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 00:39:14,396 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 00:39:14,397 INFO L309 CfgBuilder]: Removed 40 assume(true) statements. [2023-11-29 00:39:14,397 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:39:14 BoogieIcfgContainer [2023-11-29 00:39:14,397 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 00:39:14,400 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 00:39:14,400 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 00:39:14,403 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 00:39:14,403 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 12:39:12" (1/3) ... [2023-11-29 00:39:14,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a190595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:39:14, skipping insertion in model container [2023-11-29 00:39:14,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 12:39:12" (2/3) ... [2023-11-29 00:39:14,404 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a190595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 12:39:14, skipping insertion in model container [2023-11-29 00:39:14,404 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 12:39:14" (3/3) ... [2023-11-29 00:39:14,405 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_JEN_nondet_test1-2.i [2023-11-29 00:39:14,424 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 00:39:14,425 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-29 00:39:14,481 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 00:39:14,488 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;@e9fce13, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 00:39:14,488 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2023-11-29 00:39:14,494 INFO L276 IsEmpty]: Start isEmpty. Operand has 229 states, 218 states have (on average 1.6972477064220184) internal successors, (370), 224 states have internal predecessors, (370), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:39:14,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 00:39:14,500 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:14,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 00:39:14,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:14,506 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:14,506 INFO L85 PathProgramCache]: Analyzing trace with hash 903059780, now seen corresponding path program 1 times [2023-11-29 00:39:14,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:14,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555190701] [2023-11-29 00:39:14,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:14,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:14,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:14,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:39:14,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:14,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555190701] [2023-11-29 00:39:14,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555190701] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:39:14,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:39:14,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:39:14,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031242564] [2023-11-29 00:39:14,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:39:14,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:39:14,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:14,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:39:14,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:39:14,715 INFO L87 Difference]: Start difference. First operand has 229 states, 218 states have (on average 1.6972477064220184) internal successors, (370), 224 states have internal predecessors, (370), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:14,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:14,819 INFO L93 Difference]: Finished difference Result 636 states and 1052 transitions. [2023-11-29 00:39:14,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:39:14,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2023-11-29 00:39:14,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:14,855 INFO L225 Difference]: With dead ends: 636 [2023-11-29 00:39:14,855 INFO L226 Difference]: Without dead ends: 370 [2023-11-29 00:39:14,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:39:14,862 INFO L413 NwaCegarLoop]: 361 mSDtfsCounter, 260 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:14,863 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 680 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:39:14,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2023-11-29 00:39:14,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 191. [2023-11-29 00:39:14,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 181 states have (on average 1.5082872928176796) internal successors, (273), 186 states have internal predecessors, (273), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:39:14,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 279 transitions. [2023-11-29 00:39:14,921 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 279 transitions. Word has length 5 [2023-11-29 00:39:14,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:14,921 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 279 transitions. [2023-11-29 00:39:14,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:14,922 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 279 transitions. [2023-11-29 00:39:14,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-29 00:39:14,922 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:14,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-29 00:39:14,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 00:39:14,923 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:14,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:14,924 INFO L85 PathProgramCache]: Analyzing trace with hash 902408182, now seen corresponding path program 1 times [2023-11-29 00:39:14,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:14,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504261616] [2023-11-29 00:39:14,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:14,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:14,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:15,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:39:15,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:15,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504261616] [2023-11-29 00:39:15,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504261616] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:39:15,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:39:15,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:39:15,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141912630] [2023-11-29 00:39:15,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:39:15,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:39:15,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:15,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:39:15,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:39:15,124 INFO L87 Difference]: Start difference. First operand 191 states and 279 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:15,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:15,171 INFO L93 Difference]: Finished difference Result 197 states and 285 transitions. [2023-11-29 00:39:15,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:39:15,172 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2023-11-29 00:39:15,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:15,174 INFO L225 Difference]: With dead ends: 197 [2023-11-29 00:39:15,174 INFO L226 Difference]: Without dead ends: 196 [2023-11-29 00:39:15,174 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:39:15,176 INFO L413 NwaCegarLoop]: 272 mSDtfsCounter, 2 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 807 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:15,177 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 807 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:39:15,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2023-11-29 00:39:15,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 194. [2023-11-29 00:39:15,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 184 states have (on average 1.5) internal successors, (276), 189 states have internal predecessors, (276), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:39:15,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 282 transitions. [2023-11-29 00:39:15,193 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 282 transitions. Word has length 5 [2023-11-29 00:39:15,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:15,193 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 282 transitions. [2023-11-29 00:39:15,193 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:15,194 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 282 transitions. [2023-11-29 00:39:15,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2023-11-29 00:39:15,194 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:15,194 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2023-11-29 00:39:15,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 00:39:15,195 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:15,195 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:15,196 INFO L85 PathProgramCache]: Analyzing trace with hash -2090117355, now seen corresponding path program 1 times [2023-11-29 00:39:15,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:15,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613355875] [2023-11-29 00:39:15,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:15,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:15,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:15,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:39:15,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:15,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613355875] [2023-11-29 00:39:15,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613355875] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:39:15,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:39:15,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:39:15,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772102366] [2023-11-29 00:39:15,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:39:15,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:39:15,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:15,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:39:15,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:39:15,316 INFO L87 Difference]: Start difference. First operand 194 states and 282 transitions. Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:15,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:15,344 INFO L93 Difference]: Finished difference Result 196 states and 284 transitions. [2023-11-29 00:39:15,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:39:15,345 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2023-11-29 00:39:15,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:15,347 INFO L225 Difference]: With dead ends: 196 [2023-11-29 00:39:15,347 INFO L226 Difference]: Without dead ends: 195 [2023-11-29 00:39:15,347 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:39:15,349 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 0 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:15,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 543 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:39:15,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2023-11-29 00:39:15,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 195. [2023-11-29 00:39:15,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 185 states have (on average 1.4972972972972973) internal successors, (277), 190 states have internal predecessors, (277), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:39:15,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 283 transitions. [2023-11-29 00:39:15,363 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 283 transitions. Word has length 6 [2023-11-29 00:39:15,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:15,363 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 283 transitions. [2023-11-29 00:39:15,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:15,364 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 283 transitions. [2023-11-29 00:39:15,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 00:39:15,367 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:15,368 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:39:15,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 00:39:15,368 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:15,369 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:15,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1393315929, now seen corresponding path program 1 times [2023-11-29 00:39:15,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:15,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574692039] [2023-11-29 00:39:15,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:15,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:15,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:15,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:39:15,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:15,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574692039] [2023-11-29 00:39:15,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574692039] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:39:15,682 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:39:15,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 00:39:15,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814994406] [2023-11-29 00:39:15,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:39:15,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:39:15,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:15,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:39:15,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:39:15,684 INFO L87 Difference]: Start difference. First operand 195 states and 283 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:15,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:15,776 INFO L93 Difference]: Finished difference Result 388 states and 564 transitions. [2023-11-29 00:39:15,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:39:15,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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 79 [2023-11-29 00:39:15,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:15,778 INFO L225 Difference]: With dead ends: 388 [2023-11-29 00:39:15,778 INFO L226 Difference]: Without dead ends: 199 [2023-11-29 00:39:15,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:39:15,781 INFO L413 NwaCegarLoop]: 248 mSDtfsCounter, 169 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:15,781 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 592 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:39:15,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2023-11-29 00:39:15,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2023-11-29 00:39:15,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 185 states have (on average 1.4594594594594594) internal successors, (270), 190 states have internal predecessors, (270), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:39:15,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 276 transitions. [2023-11-29 00:39:15,791 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 276 transitions. Word has length 79 [2023-11-29 00:39:15,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:15,792 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 276 transitions. [2023-11-29 00:39:15,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:15,792 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 276 transitions. [2023-11-29 00:39:15,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 00:39:15,795 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:15,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:39:15,796 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 00:39:15,796 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:15,796 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:15,796 INFO L85 PathProgramCache]: Analyzing trace with hash -824176229, now seen corresponding path program 1 times [2023-11-29 00:39:15,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:15,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169530646] [2023-11-29 00:39:15,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:15,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:15,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:15,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:39:15,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:15,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169530646] [2023-11-29 00:39:15,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169530646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:39:15,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:39:15,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:39:15,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515118228] [2023-11-29 00:39:15,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:39:15,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:39:15,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:15,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:39:15,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-29 00:39:15,992 INFO L87 Difference]: Start difference. First operand 195 states and 276 transitions. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:16,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:16,056 INFO L93 Difference]: Finished difference Result 345 states and 480 transitions. [2023-11-29 00:39:16,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:39:16,057 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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 79 [2023-11-29 00:39:16,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:16,058 INFO L225 Difference]: With dead ends: 345 [2023-11-29 00:39:16,058 INFO L226 Difference]: Without dead ends: 156 [2023-11-29 00:39:16,059 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:39:16,060 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 78 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:16,061 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 460 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:39:16,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-11-29 00:39:16,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2023-11-29 00:39:16,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 146 states have (on average 1.3630136986301369) internal successors, (199), 151 states have internal predecessors, (199), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:39:16,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 205 transitions. [2023-11-29 00:39:16,068 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 205 transitions. Word has length 79 [2023-11-29 00:39:16,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:16,069 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 205 transitions. [2023-11-29 00:39:16,069 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:16,069 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 205 transitions. [2023-11-29 00:39:16,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2023-11-29 00:39:16,071 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:16,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:39:16,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 00:39:16,071 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:16,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:16,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1700195235, now seen corresponding path program 1 times [2023-11-29 00:39:16,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:16,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630261924] [2023-11-29 00:39:16,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:16,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:16,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 00:39:16,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:16,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630261924] [2023-11-29 00:39:16,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1630261924] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:39:16,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:39:16,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 00:39:16,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226785366] [2023-11-29 00:39:16,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:39:16,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 00:39:16,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:16,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 00:39:16,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:39:16,270 INFO L87 Difference]: Start difference. First operand 156 states and 205 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:16,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:16,346 INFO L93 Difference]: Finished difference Result 376 states and 502 transitions. [2023-11-29 00:39:16,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 00:39:16,348 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 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 79 [2023-11-29 00:39:16,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:16,350 INFO L225 Difference]: With dead ends: 376 [2023-11-29 00:39:16,350 INFO L226 Difference]: Without dead ends: 226 [2023-11-29 00:39:16,351 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 00:39:16,352 INFO L413 NwaCegarLoop]: 196 mSDtfsCounter, 52 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:16,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 377 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 00:39:16,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-11-29 00:39:16,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2023-11-29 00:39:16,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 216 states have (on average 1.3703703703703705) internal successors, (296), 221 states have internal predecessors, (296), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:39:16,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 302 transitions. [2023-11-29 00:39:16,364 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 302 transitions. Word has length 79 [2023-11-29 00:39:16,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:16,365 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 302 transitions. [2023-11-29 00:39:16,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 2 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 00:39:16,365 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 302 transitions. [2023-11-29 00:39:16,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2023-11-29 00:39:16,366 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:16,367 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-11-29 00:39:16,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 00:39:16,367 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:16,368 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:16,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1781603182, now seen corresponding path program 1 times [2023-11-29 00:39:16,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:16,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694100624] [2023-11-29 00:39:16,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:16,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:16,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:16,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:39:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:16,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:39:16,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:16,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:16,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:16,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694100624] [2023-11-29 00:39:16,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694100624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:39:16,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:39:16,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:39:16,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21287830] [2023-11-29 00:39:16,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:39:16,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:39:16,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:16,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:39:16,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:39:16,654 INFO L87 Difference]: Start difference. First operand 226 states and 302 transitions. Second operand has 5 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:39:16,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:16,887 INFO L93 Difference]: Finished difference Result 228 states and 307 transitions. [2023-11-29 00:39:16,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:39:16,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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 92 [2023-11-29 00:39:16,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:16,891 INFO L225 Difference]: With dead ends: 228 [2023-11-29 00:39:16,892 INFO L226 Difference]: Without dead ends: 227 [2023-11-29 00:39:16,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:39:16,893 INFO L413 NwaCegarLoop]: 188 mSDtfsCounter, 111 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:16,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 523 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:39:16,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2023-11-29 00:39:16,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 225. [2023-11-29 00:39:16,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 216 states have (on average 1.3657407407407407) internal successors, (295), 220 states have internal predecessors, (295), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2023-11-29 00:39:16,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 301 transitions. [2023-11-29 00:39:16,906 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 301 transitions. Word has length 92 [2023-11-29 00:39:16,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:16,906 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 301 transitions. [2023-11-29 00:39:16,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:39:16,907 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 301 transitions. [2023-11-29 00:39:16,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-29 00:39:16,908 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:16,908 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-11-29 00:39:16,908 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-29 00:39:16,909 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:16,909 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:16,909 INFO L85 PathProgramCache]: Analyzing trace with hash -604875425, now seen corresponding path program 1 times [2023-11-29 00:39:16,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:16,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931817299] [2023-11-29 00:39:16,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:16,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:17,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:39:17,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:17,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:39:17,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:17,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:17,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:17,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931817299] [2023-11-29 00:39:17,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931817299] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:39:17,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:39:17,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:39:17,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215594711] [2023-11-29 00:39:17,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:39:17,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:39:17,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:17,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:39:17,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:39:17,187 INFO L87 Difference]: Start difference. First operand 225 states and 301 transitions. Second operand has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:39:17,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:17,450 INFO L93 Difference]: Finished difference Result 288 states and 390 transitions. [2023-11-29 00:39:17,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:39:17,451 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 93 [2023-11-29 00:39:17,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:17,454 INFO L225 Difference]: With dead ends: 288 [2023-11-29 00:39:17,454 INFO L226 Difference]: Without dead ends: 287 [2023-11-29 00:39:17,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:39:17,455 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 96 mSDsluCounter, 524 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:17,455 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 714 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:39:17,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2023-11-29 00:39:17,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 285. [2023-11-29 00:39:17,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 273 states have (on average 1.3516483516483517) internal successors, (369), 277 states have internal predecessors, (369), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-11-29 00:39:17,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 381 transitions. [2023-11-29 00:39:17,470 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 381 transitions. Word has length 93 [2023-11-29 00:39:17,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:17,471 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 381 transitions. [2023-11-29 00:39:17,472 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:39:17,472 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 381 transitions. [2023-11-29 00:39:17,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 00:39:17,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:17,473 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:39:17,473 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-29 00:39:17,474 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:17,474 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:17,474 INFO L85 PathProgramCache]: Analyzing trace with hash 1176675028, now seen corresponding path program 1 times [2023-11-29 00:39:17,475 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:17,475 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645966064] [2023-11-29 00:39:17,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:17,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:17,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:17,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:39:17,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:17,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:39:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:17,769 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:17,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:17,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645966064] [2023-11-29 00:39:17,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645966064] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:39:17,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082921092] [2023-11-29 00:39:17,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:17,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:39:17,771 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:39:17,773 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:39:17,777 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 00:39:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:18,125 INFO L262 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-29 00:39:18,136 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:39:18,330 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:18,330 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:39:18,505 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:18,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082921092] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:39:18,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:39:18,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2023-11-29 00:39:18,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592603220] [2023-11-29 00:39:18,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:39:18,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-11-29 00:39:18,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:18,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-11-29 00:39:18,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:39:18,508 INFO L87 Difference]: Start difference. First operand 285 states and 381 transitions. Second operand has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 8 states have internal predecessors, (178), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:18,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:18,934 INFO L93 Difference]: Finished difference Result 434 states and 589 transitions. [2023-11-29 00:39:18,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:39:18,935 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 8 states have internal predecessors, (178), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 97 [2023-11-29 00:39:18,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:18,938 INFO L225 Difference]: With dead ends: 434 [2023-11-29 00:39:18,939 INFO L226 Difference]: Without dead ends: 427 [2023-11-29 00:39:18,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2023-11-29 00:39:18,940 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 457 mSDsluCounter, 1199 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1429 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:18,940 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [471 Valid, 1429 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:39:18,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2023-11-29 00:39:18,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 423. [2023-11-29 00:39:18,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 408 states have (on average 1.3504901960784315) internal successors, (551), 412 states have internal predecessors, (551), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2023-11-29 00:39:18,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 569 transitions. [2023-11-29 00:39:18,962 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 569 transitions. Word has length 97 [2023-11-29 00:39:18,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:18,962 INFO L495 AbstractCegarLoop]: Abstraction has 423 states and 569 transitions. [2023-11-29 00:39:18,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.77777777777778) internal successors, (178), 8 states have internal predecessors, (178), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:18,963 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 569 transitions. [2023-11-29 00:39:18,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2023-11-29 00:39:18,963 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:18,964 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-11-29 00:39:18,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 00:39:19,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:39:19,165 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:19,165 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:19,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1176023430, now seen corresponding path program 1 times [2023-11-29 00:39:19,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:19,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1340007267] [2023-11-29 00:39:19,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:19,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:19,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:39:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:19,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:39:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:19,896 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:19,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:19,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1340007267] [2023-11-29 00:39:19,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1340007267] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:39:19,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577483511] [2023-11-29 00:39:19,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:19,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:39:19,897 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:39:19,898 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:39:19,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 00:39:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:20,228 INFO L262 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 12 conjunts are in the unsatisfiable core [2023-11-29 00:39:20,239 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:39:20,471 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:20,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:39:20,675 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:20,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577483511] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:39:20,675 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:39:20,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2023-11-29 00:39:20,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695458792] [2023-11-29 00:39:20,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:39:20,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:39:20,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:20,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:39:20,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:39:20,678 INFO L87 Difference]: Start difference. First operand 423 states and 569 transitions. Second operand has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:21,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:21,225 INFO L93 Difference]: Finished difference Result 577 states and 784 transitions. [2023-11-29 00:39:21,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 00:39:21,226 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 97 [2023-11-29 00:39:21,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:21,230 INFO L225 Difference]: With dead ends: 577 [2023-11-29 00:39:21,230 INFO L226 Difference]: Without dead ends: 576 [2023-11-29 00:39:21,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=102, Invalid=204, Unknown=0, NotChecked=0, Total=306 [2023-11-29 00:39:21,232 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 385 mSDsluCounter, 1840 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 2149 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:21,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 2149 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:39:21,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 576 states. [2023-11-29 00:39:21,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 576 to 563. [2023-11-29 00:39:21,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 545 states have (on average 1.348623853211009) internal successors, (735), 549 states have internal predecessors, (735), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 00:39:21,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 759 transitions. [2023-11-29 00:39:21,262 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 759 transitions. Word has length 97 [2023-11-29 00:39:21,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:21,262 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 759 transitions. [2023-11-29 00:39:21,263 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.538461538461538) internal successors, (189), 13 states have internal predecessors, (189), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:21,263 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 759 transitions. [2023-11-29 00:39:21,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2023-11-29 00:39:21,264 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:21,264 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2023-11-29 00:39:21,271 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 00:39:21,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:39:21,465 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:21,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:21,465 INFO L85 PathProgramCache]: Analyzing trace with hash 2096988037, now seen corresponding path program 1 times [2023-11-29 00:39:21,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:21,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899583833] [2023-11-29 00:39:21,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:21,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:21,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:22,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:39:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:22,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:39:22,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:22,146 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:22,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:22,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899583833] [2023-11-29 00:39:22,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899583833] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:39:22,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928905682] [2023-11-29 00:39:22,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:22,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:39:22,148 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:39:22,149 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:39:22,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 00:39:22,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:22,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 11 conjunts are in the unsatisfiable core [2023-11-29 00:39:22,512 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:39:22,686 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:22,686 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:39:22,849 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:22,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928905682] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:39:22,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:39:22,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 13 [2023-11-29 00:39:22,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031246247] [2023-11-29 00:39:22,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:39:22,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-29 00:39:22,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:22,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-29 00:39:22,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2023-11-29 00:39:22,852 INFO L87 Difference]: Start difference. First operand 563 states and 759 transitions. Second operand has 14 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:23,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:23,294 INFO L93 Difference]: Finished difference Result 574 states and 781 transitions. [2023-11-29 00:39:23,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-29 00:39:23,295 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 98 [2023-11-29 00:39:23,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:23,299 INFO L225 Difference]: With dead ends: 574 [2023-11-29 00:39:23,299 INFO L226 Difference]: Without dead ends: 573 [2023-11-29 00:39:23,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2023-11-29 00:39:23,301 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 577 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 2282 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:23,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 2282 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:39:23,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573 states. [2023-11-29 00:39:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573 to 564. [2023-11-29 00:39:23,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 546 states have (on average 1.3443223443223444) internal successors, (734), 550 states have internal predecessors, (734), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 00:39:23,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 758 transitions. [2023-11-29 00:39:23,332 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 758 transitions. Word has length 98 [2023-11-29 00:39:23,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:23,333 INFO L495 AbstractCegarLoop]: Abstraction has 564 states and 758 transitions. [2023-11-29 00:39:23,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 14.76923076923077) internal successors, (192), 13 states have internal predecessors, (192), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:23,333 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 758 transitions. [2023-11-29 00:39:23,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2023-11-29 00:39:23,336 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:23,337 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:39:23,344 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 00:39:23,537 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-11-29 00:39:23,537 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:23,538 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:23,538 INFO L85 PathProgramCache]: Analyzing trace with hash -179187905, now seen corresponding path program 1 times [2023-11-29 00:39:23,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:23,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745639292] [2023-11-29 00:39:23,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:23,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:23,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:24,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:39:24,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:24,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:39:24,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 236 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2023-11-29 00:39:24,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:24,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745639292] [2023-11-29 00:39:24,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745639292] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:39:24,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:39:24,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-29 00:39:24,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699563830] [2023-11-29 00:39:24,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:39:24,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 00:39:24,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:24,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 00:39:24,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 00:39:24,027 INFO L87 Difference]: Start difference. First operand 564 states and 758 transitions. Second operand has 5 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:39:24,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:24,291 INFO L93 Difference]: Finished difference Result 566 states and 772 transitions. [2023-11-29 00:39:24,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-29 00:39:24,293 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 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 251 [2023-11-29 00:39:24,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:24,297 INFO L225 Difference]: With dead ends: 566 [2023-11-29 00:39:24,297 INFO L226 Difference]: Without dead ends: 565 [2023-11-29 00:39:24,298 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:39:24,298 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 106 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:24,299 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 531 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:39:24,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2023-11-29 00:39:24,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 563. [2023-11-29 00:39:24,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 546 states have (on average 1.3406593406593406) internal successors, (732), 549 states have internal predecessors, (732), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-11-29 00:39:24,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 756 transitions. [2023-11-29 00:39:24,327 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 756 transitions. Word has length 251 [2023-11-29 00:39:24,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:24,328 INFO L495 AbstractCegarLoop]: Abstraction has 563 states and 756 transitions. [2023-11-29 00:39:24,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 42.25) internal successors, (169), 4 states have internal predecessors, (169), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:39:24,328 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 756 transitions. [2023-11-29 00:39:24,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2023-11-29 00:39:24,332 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:24,332 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:39:24,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-11-29 00:39:24,332 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:24,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:24,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1299328180, now seen corresponding path program 1 times [2023-11-29 00:39:24,333 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:24,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237853847] [2023-11-29 00:39:24,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:24,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:24,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:25,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:39:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:25,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:39:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:25,116 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:25,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:25,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237853847] [2023-11-29 00:39:25,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237853847] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:39:25,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087992751] [2023-11-29 00:39:25,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:25,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:39:25,117 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:39:25,118 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:39:25,124 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 00:39:25,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:25,723 INFO L262 TraceCheckSpWp]: Trace formula consists of 1288 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-29 00:39:25,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:39:26,011 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:26,011 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:39:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 0 proven. 236 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:26,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087992751] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:39:26,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:39:26,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2023-11-29 00:39:26,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159763280] [2023-11-29 00:39:26,394 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:39:26,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-29 00:39:26,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:26,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-29 00:39:26,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=198, Unknown=0, NotChecked=0, Total=272 [2023-11-29 00:39:26,398 INFO L87 Difference]: Start difference. First operand 563 states and 756 transitions. Second operand has 17 states, 17 states have (on average 29.058823529411764) internal successors, (494), 16 states have internal predecessors, (494), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:27,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:27,029 INFO L93 Difference]: Finished difference Result 982 states and 1343 transitions. [2023-11-29 00:39:27,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-29 00:39:27,030 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 29.058823529411764) internal successors, (494), 16 states have internal predecessors, (494), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 255 [2023-11-29 00:39:27,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:27,038 INFO L225 Difference]: With dead ends: 982 [2023-11-29 00:39:27,038 INFO L226 Difference]: Without dead ends: 976 [2023-11-29 00:39:27,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=153, Invalid=353, Unknown=0, NotChecked=0, Total=506 [2023-11-29 00:39:27,039 INFO L413 NwaCegarLoop]: 309 mSDtfsCounter, 1180 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1218 SdHoareTripleChecker+Valid, 2718 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:27,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1218 Valid, 2718 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:39:27,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 976 states. [2023-11-29 00:39:27,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 976 to 970. [2023-11-29 00:39:27,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 970 states, 944 states have (on average 1.3432203389830508) internal successors, (1268), 947 states have internal predecessors, (1268), 21 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2023-11-29 00:39:27,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 1310 transitions. [2023-11-29 00:39:27,070 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 1310 transitions. Word has length 255 [2023-11-29 00:39:27,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:27,071 INFO L495 AbstractCegarLoop]: Abstraction has 970 states and 1310 transitions. [2023-11-29 00:39:27,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 29.058823529411764) internal successors, (494), 16 states have internal predecessors, (494), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:27,071 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 1310 transitions. [2023-11-29 00:39:27,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2023-11-29 00:39:27,075 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:27,075 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:39:27,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 00:39:27,276 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:39:27,276 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:27,277 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:27,277 INFO L85 PathProgramCache]: Analyzing trace with hash 1481610375, now seen corresponding path program 1 times [2023-11-29 00:39:27,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:27,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064551751] [2023-11-29 00:39:27,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:27,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:30,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:39:30,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:30,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:39:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:30,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:30,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064551751] [2023-11-29 00:39:30,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064551751] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:39:30,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [838624326] [2023-11-29 00:39:30,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:30,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:39:30,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:39:30,385 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:39:30,388 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 00:39:31,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:31,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 1689 conjuncts, 26 conjunts are in the unsatisfiable core [2023-11-29 00:39:31,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:39:31,715 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:31,715 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:39:32,202 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:32,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [838624326] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:39:32,203 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:39:32,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2023-11-29 00:39:32,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571937930] [2023-11-29 00:39:32,203 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:39:32,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 00:39:32,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:32,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 00:39:32,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=552, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:39:32,208 INFO L87 Difference]: Start difference. First operand 970 states and 1310 transitions. Second operand has 29 states, 28 states have (on average 24.0) internal successors, (672), 28 states have internal predecessors, (672), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:32,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:32,947 INFO L93 Difference]: Finished difference Result 1412 states and 1930 transitions. [2023-11-29 00:39:32,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-11-29 00:39:32,948 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 24.0) internal successors, (672), 28 states have internal predecessors, (672), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 334 [2023-11-29 00:39:32,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:32,958 INFO L225 Difference]: With dead ends: 1412 [2023-11-29 00:39:32,958 INFO L226 Difference]: Without dead ends: 1411 [2023-11-29 00:39:32,959 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 653 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=481, Invalid=1079, Unknown=0, NotChecked=0, Total=1560 [2023-11-29 00:39:32,960 INFO L413 NwaCegarLoop]: 268 mSDtfsCounter, 2384 mSDsluCounter, 3185 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2430 SdHoareTripleChecker+Valid, 3453 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:32,960 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2430 Valid, 3453 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:39:32,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1411 states. [2023-11-29 00:39:33,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1411 to 1384. [2023-11-29 00:39:33,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1349 states have (on average 1.3432171979243885) internal successors, (1812), 1352 states have internal predecessors, (1812), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:39:33,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1872 transitions. [2023-11-29 00:39:33,021 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1872 transitions. Word has length 334 [2023-11-29 00:39:33,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:33,022 INFO L495 AbstractCegarLoop]: Abstraction has 1384 states and 1872 transitions. [2023-11-29 00:39:33,022 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 24.0) internal successors, (672), 28 states have internal predecessors, (672), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:33,022 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1872 transitions. [2023-11-29 00:39:33,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2023-11-29 00:39:33,028 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:33,028 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:39:33,038 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 00:39:33,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:39:33,229 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:33,229 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:33,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1314718556, now seen corresponding path program 1 times [2023-11-29 00:39:33,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:33,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955829990] [2023-11-29 00:39:33,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:33,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:35,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:39:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:35,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:39:35,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:35,742 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:35,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:35,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955829990] [2023-11-29 00:39:35,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955829990] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:39:35,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1413809273] [2023-11-29 00:39:35,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:35,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:39:35,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:39:35,745 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:39:35,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 00:39:36,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:36,523 INFO L262 TraceCheckSpWp]: Trace formula consists of 1690 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-29 00:39:36,533 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:39:37,014 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:37,014 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:39:37,424 INFO L134 CoverageAnalysis]: Checked inductivity of 491 backedges. 0 proven. 488 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:37,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1413809273] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:39:37,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:39:37,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 28 [2023-11-29 00:39:37,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468721210] [2023-11-29 00:39:37,425 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:39:37,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-11-29 00:39:37,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:37,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-11-29 00:39:37,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=552, Unknown=0, NotChecked=0, Total=812 [2023-11-29 00:39:37,428 INFO L87 Difference]: Start difference. First operand 1384 states and 1872 transitions. Second operand has 29 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:38,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:38,036 INFO L93 Difference]: Finished difference Result 1406 states and 1924 transitions. [2023-11-29 00:39:38,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-11-29 00:39:38,037 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 335 [2023-11-29 00:39:38,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:38,045 INFO L225 Difference]: With dead ends: 1406 [2023-11-29 00:39:38,045 INFO L226 Difference]: Without dead ends: 1405 [2023-11-29 00:39:38,046 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 655 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 389 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=340, Invalid=782, Unknown=0, NotChecked=0, Total=1122 [2023-11-29 00:39:38,047 INFO L413 NwaCegarLoop]: 189 mSDtfsCounter, 2010 mSDsluCounter, 3342 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2056 SdHoareTripleChecker+Valid, 3531 SdHoareTripleChecker+Invalid, 289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:38,047 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2056 Valid, 3531 Invalid, 289 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:39:38,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1405 states. [2023-11-29 00:39:38,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1405 to 1385. [2023-11-29 00:39:38,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1350 states have (on average 1.3392592592592591) internal successors, (1808), 1353 states have internal predecessors, (1808), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:39:38,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 1868 transitions. [2023-11-29 00:39:38,106 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 1868 transitions. Word has length 335 [2023-11-29 00:39:38,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:38,107 INFO L495 AbstractCegarLoop]: Abstraction has 1385 states and 1868 transitions. [2023-11-29 00:39:38,107 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 24.107142857142858) internal successors, (675), 28 states have internal predecessors, (675), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:38,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 1868 transitions. [2023-11-29 00:39:38,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 572 [2023-11-29 00:39:38,122 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:38,122 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:39:38,132 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 00:39:38,323 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 00:39:38,323 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:38,323 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:38,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1258399860, now seen corresponding path program 2 times [2023-11-29 00:39:38,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:38,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818897037] [2023-11-29 00:39:38,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:38,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:39:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:40,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:39:40,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:40,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:39:40,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:39:40,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 0 proven. 1654 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:40,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:39:40,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818897037] [2023-11-29 00:39:40,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818897037] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:39:40,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976717500] [2023-11-29 00:39:40,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-29 00:39:40,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:39:40,034 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:39:40,034 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:39:40,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 00:39:41,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-29 00:39:41,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:39:41,073 INFO L262 TraceCheckSpWp]: Trace formula consists of 2764 conjuncts, 16 conjunts are in the unsatisfiable core [2023-11-29 00:39:41,083 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:39:41,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 0 proven. 1654 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:41,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-29 00:39:42,235 INFO L134 CoverageAnalysis]: Checked inductivity of 1657 backedges. 0 proven. 1654 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-11-29 00:39:42,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976717500] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-29 00:39:42,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-29 00:39:42,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 22 [2023-11-29 00:39:42,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738371453] [2023-11-29 00:39:42,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-29 00:39:42,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-29 00:39:42,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:39:42,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-29 00:39:42,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2023-11-29 00:39:42,240 INFO L87 Difference]: Start difference. First operand 1385 states and 1868 transitions. Second operand has 22 states, 22 states have (on average 33.36363636363637) internal successors, (734), 21 states have internal predecessors, (734), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:42,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:39:42,826 INFO L93 Difference]: Finished difference Result 1393 states and 1906 transitions. [2023-11-29 00:39:42,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-11-29 00:39:42,827 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 33.36363636363637) internal successors, (734), 21 states have internal predecessors, (734), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 571 [2023-11-29 00:39:42,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:39:42,834 INFO L225 Difference]: With dead ends: 1393 [2023-11-29 00:39:42,834 INFO L226 Difference]: Without dead ends: 1387 [2023-11-29 00:39:42,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1169 GetRequests, 1129 SyntacticMatches, 11 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 262 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=275, Invalid=655, Unknown=0, NotChecked=0, Total=930 [2023-11-29 00:39:42,835 INFO L413 NwaCegarLoop]: 269 mSDtfsCounter, 2040 mSDsluCounter, 2953 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 3222 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-29 00:39:42,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 3222 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-29 00:39:42,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1387 states. [2023-11-29 00:39:42,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1387 to 1385. [2023-11-29 00:39:42,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1385 states, 1350 states have (on average 1.337037037037037) internal successors, (1805), 1353 states have internal predecessors, (1805), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:39:42,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1385 states to 1385 states and 1865 transitions. [2023-11-29 00:39:42,892 INFO L78 Accepts]: Start accepts. Automaton has 1385 states and 1865 transitions. Word has length 571 [2023-11-29 00:39:42,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:39:42,893 INFO L495 AbstractCegarLoop]: Abstraction has 1385 states and 1865 transitions. [2023-11-29 00:39:42,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 33.36363636363637) internal successors, (734), 21 states have internal predecessors, (734), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-11-29 00:39:42,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1385 states and 1865 transitions. [2023-11-29 00:39:42,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 809 [2023-11-29 00:39:42,903 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:39:42,903 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:39:42,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-11-29 00:39:43,104 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 00:39:43,104 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:39:43,104 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:39:43,105 INFO L85 PathProgramCache]: Analyzing trace with hash -34724811, now seen corresponding path program 3 times [2023-11-29 00:39:43,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:39:43,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525187512] [2023-11-29 00:39:43,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:39:43,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:55,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2023-11-29 00:42:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:55,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 00:42:55,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:55,105 INFO L134 CoverageAnalysis]: Checked inductivity of 3550 backedges. 514 proven. 2 refuted. 0 times theorem prover too weak. 3034 trivial. 0 not checked. [2023-11-29 00:42:55,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:55,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525187512] [2023-11-29 00:42:55,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525187512] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:42:55,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444398813] [2023-11-29 00:42:55,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-29 00:42:55,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:42:55,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:42:55,108 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:42:55,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 00:42:56,093 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2023-11-29 00:42:56,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-29 00:42:56,097 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-29 00:42:56,107 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:42:56,263 INFO L134 CoverageAnalysis]: Checked inductivity of 3550 backedges. 647 proven. 0 refuted. 0 times theorem prover too weak. 2903 trivial. 0 not checked. [2023-11-29 00:42:56,264 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:42:56,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444398813] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:56,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:42:56,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2023-11-29 00:42:56,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594318479] [2023-11-29 00:42:56,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:56,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 00:42:56,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:56,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 00:42:56,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:42:56,267 INFO L87 Difference]: Start difference. First operand 1385 states and 1865 transitions. Second operand has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:42:56,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:42:56,473 INFO L93 Difference]: Finished difference Result 2783 states and 3770 transitions. [2023-11-29 00:42:56,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 00:42:56,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 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 808 [2023-11-29 00:42:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:42:56,481 INFO L225 Difference]: With dead ends: 2783 [2023-11-29 00:42:56,481 INFO L226 Difference]: Without dead ends: 1435 [2023-11-29 00:42:56,483 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 814 GetRequests, 807 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:42:56,484 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 8 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 00:42:56,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 585 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 00:42:56,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1435 states. [2023-11-29 00:42:56,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1435 to 1425. [2023-11-29 00:42:56,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1425 states, 1390 states have (on average 1.3273381294964028) internal successors, (1845), 1393 states have internal predecessors, (1845), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:42:56,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1425 states to 1425 states and 1905 transitions. [2023-11-29 00:42:56,542 INFO L78 Accepts]: Start accepts. Automaton has 1425 states and 1905 transitions. Word has length 808 [2023-11-29 00:42:56,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:42:56,543 INFO L495 AbstractCegarLoop]: Abstraction has 1425 states and 1905 transitions. [2023-11-29 00:42:56,543 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:42:56,543 INFO L276 IsEmpty]: Start isEmpty. Operand 1425 states and 1905 transitions. [2023-11-29 00:42:56,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 819 [2023-11-29 00:42:56,552 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:42:56,553 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:42:56,561 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2023-11-29 00:42:56,753 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-11-29 00:42:56,753 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:42:56,754 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:56,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1609393467, now seen corresponding path program 1 times [2023-11-29 00:42:56,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:56,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1861761869] [2023-11-29 00:42:56,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:56,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:57,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:58,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-11-29 00:42:58,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:58,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2023-11-29 00:42:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:42:58,481 INFO L134 CoverageAnalysis]: Checked inductivity of 3595 backedges. 352 proven. 0 refuted. 0 times theorem prover too weak. 3243 trivial. 0 not checked. [2023-11-29 00:42:58,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:42:58,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1861761869] [2023-11-29 00:42:58,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1861761869] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:42:58,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:42:58,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-11-29 00:42:58,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689119812] [2023-11-29 00:42:58,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:42:58,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-29 00:42:58,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:42:58,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-29 00:42:58,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-11-29 00:42:58,484 INFO L87 Difference]: Start difference. First operand 1425 states and 1905 transitions. Second operand has 8 states, 8 states have (on average 16.75) internal successors, (134), 7 states have internal predecessors, (134), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:42:58,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:42:58,990 INFO L93 Difference]: Finished difference Result 2853 states and 3864 transitions. [2023-11-29 00:42:58,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-29 00:42:58,990 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 7 states have internal predecessors, (134), 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 818 [2023-11-29 00:42:58,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:42:58,998 INFO L225 Difference]: With dead ends: 2853 [2023-11-29 00:42:58,998 INFO L226 Difference]: Without dead ends: 1477 [2023-11-29 00:42:59,000 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2023-11-29 00:42:59,001 INFO L413 NwaCegarLoop]: 177 mSDtfsCounter, 15 mSDsluCounter, 733 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-11-29 00:42:59,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 910 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-11-29 00:42:59,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1477 states. [2023-11-29 00:42:59,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1477 to 1465. [2023-11-29 00:42:59,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1465 states, 1430 states have (on average 1.3251748251748252) internal successors, (1895), 1433 states have internal predecessors, (1895), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:42:59,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1465 states to 1465 states and 1955 transitions. [2023-11-29 00:42:59,064 INFO L78 Accepts]: Start accepts. Automaton has 1465 states and 1955 transitions. Word has length 818 [2023-11-29 00:42:59,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:42:59,064 INFO L495 AbstractCegarLoop]: Abstraction has 1465 states and 1955 transitions. [2023-11-29 00:42:59,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 16.75) internal successors, (134), 7 states have internal predecessors, (134), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:42:59,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1465 states and 1955 transitions. [2023-11-29 00:42:59,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2023-11-29 00:42:59,074 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:42:59,075 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:42:59,075 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 00:42:59,075 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:42:59,075 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:42:59,076 INFO L85 PathProgramCache]: Analyzing trace with hash -510277717, now seen corresponding path program 1 times [2023-11-29 00:42:59,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:42:59,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384248005] [2023-11-29 00:42:59,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:42:59,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:42:59,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:43:00,711 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:43:00,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:43:00,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 00:43:00,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:43:00,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3640 backedges. 343 proven. 0 refuted. 0 times theorem prover too weak. 3297 trivial. 0 not checked. [2023-11-29 00:43:00,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:43:00,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384248005] [2023-11-29 00:43:00,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384248005] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:43:00,720 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 00:43:00,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 00:43:00,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959192796] [2023-11-29 00:43:00,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:43:00,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 00:43:00,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:43:00,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 00:43:00,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:43:00,723 INFO L87 Difference]: Start difference. First operand 1465 states and 1955 transitions. Second operand has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:43:01,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:43:01,069 INFO L93 Difference]: Finished difference Result 2924 states and 3948 transitions. [2023-11-29 00:43:01,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-11-29 00:43:01,070 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 6 states have internal predecessors, (134), 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 828 [2023-11-29 00:43:01,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:43:01,077 INFO L225 Difference]: With dead ends: 2924 [2023-11-29 00:43:01,078 INFO L226 Difference]: Without dead ends: 1507 [2023-11-29 00:43:01,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:43:01,080 INFO L413 NwaCegarLoop]: 186 mSDtfsCounter, 6 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-11-29 00:43:01,080 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 706 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-11-29 00:43:01,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2023-11-29 00:43:01,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1495. [2023-11-29 00:43:01,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1495 states, 1460 states have (on average 1.3184931506849316) internal successors, (1925), 1463 states have internal predecessors, (1925), 30 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2023-11-29 00:43:01,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1495 states to 1495 states and 1985 transitions. [2023-11-29 00:43:01,138 INFO L78 Accepts]: Start accepts. Automaton has 1495 states and 1985 transitions. Word has length 828 [2023-11-29 00:43:01,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:43:01,138 INFO L495 AbstractCegarLoop]: Abstraction has 1495 states and 1985 transitions. [2023-11-29 00:43:01,138 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 19.142857142857142) internal successors, (134), 6 states have internal predecessors, (134), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-29 00:43:01,139 INFO L276 IsEmpty]: Start isEmpty. Operand 1495 states and 1985 transitions. [2023-11-29 00:43:01,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2023-11-29 00:43:01,148 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:43:01,149 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:43:01,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2023-11-29 00:43:01,149 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:43:01,149 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:43:01,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1009623719, now seen corresponding path program 1 times [2023-11-29 00:43:01,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:43:01,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703649477] [2023-11-29 00:43:01,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:43:01,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:45:16,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:45:17,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:45:17,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:45:17,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 00:45:17,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:45:17,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3640 backedges. 532 proven. 2 refuted. 0 times theorem prover too weak. 3106 trivial. 0 not checked. [2023-11-29 00:45:17,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:45:17,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703649477] [2023-11-29 00:45:17,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703649477] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:45:17,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1473758017] [2023-11-29 00:45:17,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:45:17,546 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:45:17,546 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:45:17,548 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:45:17,556 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 00:45:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:45:51,086 INFO L262 TraceCheckSpWp]: Trace formula consists of 3871 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-29 00:45:51,097 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:45:51,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3640 backedges. 535 proven. 0 refuted. 0 times theorem prover too weak. 3105 trivial. 0 not checked. [2023-11-29 00:45:51,122 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 00:45:51,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1473758017] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 00:45:51,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 00:45:51,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2023-11-29 00:45:51,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1797608976] [2023-11-29 00:45:51,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 00:45:51,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 00:45:51,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 00:45:51,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 00:45:51,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-29 00:45:51,124 INFO L87 Difference]: Start difference. First operand 1495 states and 1985 transitions. Second operand has 4 states, 3 states have (on average 52.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:45:51,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 00:45:51,179 INFO L93 Difference]: Finished difference Result 2902 states and 3883 transitions. [2023-11-29 00:45:51,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 00:45:51,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 52.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 828 [2023-11-29 00:45:51,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 00:45:51,185 INFO L225 Difference]: With dead ends: 2902 [2023-11-29 00:45:51,185 INFO L226 Difference]: Without dead ends: 1497 [2023-11-29 00:45:51,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 835 GetRequests, 830 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-11-29 00:45:51,188 INFO L413 NwaCegarLoop]: 192 mSDtfsCounter, 1 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 00:45:51,188 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 572 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 00:45:51,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2023-11-29 00:45:51,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1497. [2023-11-29 00:45:51,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1497 states, 1461 states have (on average 1.31895961670089) internal successors, (1927), 1465 states have internal predecessors, (1927), 30 states have call successors, (30), 1 states have call predecessors, (30), 2 states have return successors, (40), 30 states have call predecessors, (40), 30 states have call successors, (40) [2023-11-29 00:45:51,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1497 states to 1497 states and 1997 transitions. [2023-11-29 00:45:51,240 INFO L78 Accepts]: Start accepts. Automaton has 1497 states and 1997 transitions. Word has length 828 [2023-11-29 00:45:51,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 00:45:51,241 INFO L495 AbstractCegarLoop]: Abstraction has 1497 states and 1997 transitions. [2023-11-29 00:45:51,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 52.0) internal successors, (156), 4 states have internal predecessors, (156), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-29 00:45:51,241 INFO L276 IsEmpty]: Start isEmpty. Operand 1497 states and 1997 transitions. [2023-11-29 00:45:51,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 831 [2023-11-29 00:45:51,251 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 00:45:51,252 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 00:45:51,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 00:45:51,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:45:51,452 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2023-11-29 00:45:51,453 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 00:45:51,453 INFO L85 PathProgramCache]: Analyzing trace with hash -1652388109, now seen corresponding path program 1 times [2023-11-29 00:45:51,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 00:45:51,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877144445] [2023-11-29 00:45:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:45:51,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 00:47:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:47:30,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-11-29 00:47:30,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:47:30,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2023-11-29 00:47:30,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:47:30,803 INFO L134 CoverageAnalysis]: Checked inductivity of 3645 backedges. 595 proven. 7 refuted. 0 times theorem prover too weak. 3043 trivial. 0 not checked. [2023-11-29 00:47:30,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 00:47:30,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877144445] [2023-11-29 00:47:30,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877144445] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 00:47:30,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184396945] [2023-11-29 00:47:30,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 00:47:30,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 00:47:30,804 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 00:47:30,805 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 00:47:30,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e7a499c-05fc-4b1d-b584-584bc2467580/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 00:48:17,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 00:48:17,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 3901 conjuncts, 904 conjunts are in the unsatisfiable core [2023-11-29 00:48:17,473 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 00:48:17,506 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2023-11-29 00:48:17,555 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 1 [2023-11-29 00:48:17,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 7 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 [2023-11-29 00:48:18,040 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 7 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 21 [2023-11-29 00:48:18,059 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 4 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2023-11-29 00:48:18,067 INFO L378 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 11 treesize of output 7 [2023-11-29 00:48:18,098 INFO L349 Elim1Store]: treesize reduction 26, result has 35.0 percent of original size [2023-11-29 00:48:18,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 25 treesize of output 29 [2023-11-29 00:48:18,111 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-29 00:48:18,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 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 26 treesize of output 14 [2023-11-29 00:48:18,268 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 00:48:18,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-29 00:48:18,623 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-29 00:48:18,623 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 74 treesize of output 63 [2023-11-29 00:48:18,633 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 16 [2023-11-29 00:48:18,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-29 00:48:31,692 INFO L224 Elim1Store]: Index analysis took 129 ms