./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --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 1b81f923e96224472f8219a473f794261ff02356a47c6b09b527f0fc600725a8 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 20:26:25,844 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 20:26:25,929 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 20:26:25,933 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 20:26:25,936 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 20:26:25,966 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 20:26:25,967 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 20:26:25,967 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 20:26:25,968 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 20:26:25,969 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 20:26:25,970 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 20:26:25,970 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 20:26:25,971 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 20:26:25,971 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 20:26:25,973 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 20:26:25,973 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 20:26:25,974 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 20:26:25,974 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 20:26:25,974 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 20:26:25,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 20:26:25,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 20:26:25,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 20:26:25,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 20:26:25,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 20:26:25,979 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 20:26:25,979 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 20:26:25,979 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 20:26:25,980 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 20:26:25,980 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 20:26:25,980 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 20:26:25,980 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 20:26:25,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 20:26:25,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 20:26:25,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 20:26:25,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:26:25,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 20:26:25,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 20:26:25,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 20:26:25,984 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 20:26:25,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 20:26:25,984 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 20:26:25,985 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 20:26:25,985 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 20:26:25,985 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 20:26:25,986 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:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1b81f923e96224472f8219a473f794261ff02356a47c6b09b527f0fc600725a8 [2024-10-11 20:26:26,262 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 20:26:26,290 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 20:26:26,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 20:26:26,294 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 20:26:26,295 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 20:26:26,296 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i [2024-10-11 20:26:27,845 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 20:26:28,096 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 20:26:28,096 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/list-simple/dll2c_insert_unequal.i [2024-10-11 20:26:28,113 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/047ca929e/591580bb6486487287c1318943d57d27/FLAG41eee1fdd [2024-10-11 20:26:28,125 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/047ca929e/591580bb6486487287c1318943d57d27 [2024-10-11 20:26:28,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 20:26:28,128 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 20:26:28,130 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 20:26:28,130 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 20:26:28,139 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 20:26:28,140 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,141 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@155d8890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28, skipping insertion in model container [2024-10-11 20:26:28,143 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,184 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 20:26:28,526 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:26:28,536 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 20:26:28,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 20:26:28,620 INFO L204 MainTranslator]: Completed translation [2024-10-11 20:26:28,620 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28 WrapperNode [2024-10-11 20:26:28,621 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 20:26:28,622 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 20:26:28,622 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 20:26:28,622 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 20:26:28,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,646 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,672 INFO L138 Inliner]: procedures = 127, calls = 59, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 203 [2024-10-11 20:26:28,673 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 20:26:28,674 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 20:26:28,674 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 20:26:28,674 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 20:26:28,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,683 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,687 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,726 INFO L175 MemorySlicer]: Split 40 memory accesses to 3 slices as follows [2, 26, 12]. 65 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 0, 1]. The 18 writes are split as follows [0, 17, 1]. [2024-10-11 20:26:28,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,766 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,781 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,805 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 20:26:28,805 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 20:26:28,806 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 20:26:28,806 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 20:26:28,806 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (1/1) ... [2024-10-11 20:26:28,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 20:26:28,826 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:28,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 20:26:28,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 20:26:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 20:26:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 20:26:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 20:26:28,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 20:26:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 20:26:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 20:26:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure node_create [2024-10-11 20:26:28,904 INFO L138 BoogieDeclarations]: Found implementation of procedure node_create [2024-10-11 20:26:28,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 20:26:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 20:26:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 20:26:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 20:26:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 20:26:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 20:26:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 20:26:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 20:26:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 20:26:28,905 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 20:26:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 20:26:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 20:26:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-11 20:26:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 20:26:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 20:26:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 20:26:28,906 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 20:26:28,906 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 20:26:29,072 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 20:26:29,074 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 20:26:29,364 INFO L? ?]: Removed 82 outVars from TransFormulas that were not future-live. [2024-10-11 20:26:29,364 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 20:26:29,423 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 20:26:29,424 INFO L314 CfgBuilder]: Removed 5 assume(true) statements. [2024-10-11 20:26:29,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:26:29 BoogieIcfgContainer [2024-10-11 20:26:29,424 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 20:26:29,426 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 20:26:29,427 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 20:26:29,430 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 20:26:29,430 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 08:26:28" (1/3) ... [2024-10-11 20:26:29,431 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73921066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:26:29, skipping insertion in model container [2024-10-11 20:26:29,431 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 08:26:28" (2/3) ... [2024-10-11 20:26:29,432 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73921066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 08:26:29, skipping insertion in model container [2024-10-11 20:26:29,432 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 08:26:29" (3/3) ... [2024-10-11 20:26:29,433 INFO L112 eAbstractionObserver]: Analyzing ICFG dll2c_insert_unequal.i [2024-10-11 20:26:29,449 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 20:26:29,450 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-10-11 20:26:29,516 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 20:26:29,522 INFO L333 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, 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;@4824447b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 20:26:29,522 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-10-11 20:26:29,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 47 states have (on average 1.7234042553191489) internal successors, (81), 61 states have internal predecessors, (81), 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) [2024-10-11 20:26:29,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-10-11 20:26:29,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:29,531 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:29,531 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:29,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:29,536 INFO L85 PathProgramCache]: Analyzing trace with hash 441376914, now seen corresponding path program 1 times [2024-10-11 20:26:29,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:29,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574216365] [2024-10-11 20:26:29,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:29,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:29,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:29,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:29,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 20:26:29,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:29,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574216365] [2024-10-11 20:26:29,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574216365] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:29,963 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:26:29,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:26:29,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138827759] [2024-10-11 20:26:29,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:29,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:26:29,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:29,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:26:29,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:26:29,993 INFO L87 Difference]: Start difference. First operand has 66 states, 47 states have (on average 1.7234042553191489) internal successors, (81), 61 states have internal predecessors, (81), 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 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:26:30,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:30,129 INFO L93 Difference]: Finished difference Result 124 states and 165 transitions. [2024-10-11 20:26:30,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:26:30,132 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-10-11 20:26:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:30,139 INFO L225 Difference]: With dead ends: 124 [2024-10-11 20:26:30,140 INFO L226 Difference]: Without dead ends: 60 [2024-10-11 20:26:30,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:26:30,145 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 4 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 187 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:30,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 187 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:30,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-10-11 20:26:30,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2024-10-11 20:26:30,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 38 states have (on average 1.5263157894736843) internal successors, (58), 51 states have internal predecessors, (58), 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) [2024-10-11 20:26:30,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 64 transitions. [2024-10-11 20:26:30,180 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 64 transitions. Word has length 9 [2024-10-11 20:26:30,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:30,180 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 64 transitions. [2024-10-11 20:26:30,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 20:26:30,181 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 64 transitions. [2024-10-11 20:26:30,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-10-11 20:26:30,182 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:30,182 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:30,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 20:26:30,183 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:30,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:30,183 INFO L85 PathProgramCache]: Analyzing trace with hash -934883174, now seen corresponding path program 1 times [2024-10-11 20:26:30,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:30,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562189400] [2024-10-11 20:26:30,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:30,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:30,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:30,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:30,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:30,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:30,451 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 20:26:30,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:30,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562189400] [2024-10-11 20:26:30,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562189400] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:30,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:26:30,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:26:30,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744748280] [2024-10-11 20:26:30,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:30,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:26:30,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:30,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:26:30,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:26:30,457 INFO L87 Difference]: Start difference. First operand 56 states and 64 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-10-11 20:26:30,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:30,561 INFO L93 Difference]: Finished difference Result 63 states and 74 transitions. [2024-10-11 20:26:30,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:26:30,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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 15 [2024-10-11 20:26:30,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:30,563 INFO L225 Difference]: With dead ends: 63 [2024-10-11 20:26:30,563 INFO L226 Difference]: Without dead ends: 62 [2024-10-11 20:26:30,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:26:30,564 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 2 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:30,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 189 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:30,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-11 20:26:30,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 61. [2024-10-11 20:26:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 42 states have (on average 1.5) internal successors, (63), 55 states have internal predecessors, (63), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 20:26:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 71 transitions. [2024-10-11 20:26:30,573 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 71 transitions. Word has length 15 [2024-10-11 20:26:30,573 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:30,575 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 71 transitions. [2024-10-11 20:26:30,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 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) [2024-10-11 20:26:30,575 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 71 transitions. [2024-10-11 20:26:30,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-11 20:26:30,576 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:30,576 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:30,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 20:26:30,577 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:30,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:30,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1083392734, now seen corresponding path program 1 times [2024-10-11 20:26:30,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:30,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379976596] [2024-10-11 20:26:30,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:30,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:30,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:30,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:30,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:30,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:30,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:30,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 20:26:30,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:30,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379976596] [2024-10-11 20:26:30,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379976596] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:30,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:26:30,733 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:26:30,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308149261] [2024-10-11 20:26:30,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:30,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:26:30,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:30,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:26:30,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:26:30,734 INFO L87 Difference]: Start difference. First operand 61 states and 71 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-11 20:26:30,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:30,844 INFO L93 Difference]: Finished difference Result 63 states and 73 transitions. [2024-10-11 20:26:30,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:26:30,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 16 [2024-10-11 20:26:30,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:30,847 INFO L225 Difference]: With dead ends: 63 [2024-10-11 20:26:30,847 INFO L226 Difference]: Without dead ends: 62 [2024-10-11 20:26:30,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:26:30,848 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 1 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:30,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 192 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:30,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2024-10-11 20:26:30,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2024-10-11 20:26:30,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 43 states have (on average 1.4883720930232558) internal successors, (64), 56 states have internal predecessors, (64), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 20:26:30,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 72 transitions. [2024-10-11 20:26:30,862 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 72 transitions. Word has length 16 [2024-10-11 20:26:30,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:30,862 INFO L471 AbstractCegarLoop]: Abstraction has 62 states and 72 transitions. [2024-10-11 20:26:30,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2024-10-11 20:26:30,865 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 72 transitions. [2024-10-11 20:26:30,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-11 20:26:30,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:30,866 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:30,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 20:26:30,866 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:30,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:30,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1326244716, now seen corresponding path program 1 times [2024-10-11 20:26:30,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:30,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053491867] [2024-10-11 20:26:30,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:30,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:30,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:31,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:31,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:31,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:31,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:31,113 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 20:26:31,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:31,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053491867] [2024-10-11 20:26:31,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053491867] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:31,114 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260829422] [2024-10-11 20:26:31,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:31,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:31,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:31,117 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:31,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 20:26:31,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:31,271 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-11 20:26:31,277 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:26:31,337 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:26:31,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260829422] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:31,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:26:31,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2024-10-11 20:26:31,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195990833] [2024-10-11 20:26:31,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:31,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:26:31,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:31,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:26:31,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:26:31,340 INFO L87 Difference]: Start difference. First operand 62 states and 72 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:26:31,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:31,384 INFO L93 Difference]: Finished difference Result 62 states and 72 transitions. [2024-10-11 20:26:31,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:26:31,385 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-10-11 20:26:31,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:31,386 INFO L225 Difference]: With dead ends: 62 [2024-10-11 20:26:31,386 INFO L226 Difference]: Without dead ends: 60 [2024-10-11 20:26:31,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:26:31,387 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 41 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:31,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 55 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:26:31,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2024-10-11 20:26:31,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2024-10-11 20:26:31,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60 states, 43 states have (on average 1.441860465116279) internal successors, (62), 54 states have internal predecessors, (62), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 20:26:31,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 70 transitions. [2024-10-11 20:26:31,397 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 70 transitions. Word has length 19 [2024-10-11 20:26:31,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:31,397 INFO L471 AbstractCegarLoop]: Abstraction has 60 states and 70 transitions. [2024-10-11 20:26:31,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-11 20:26:31,398 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 70 transitions. [2024-10-11 20:26:31,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-11 20:26:31,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:31,399 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:31,418 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-10-11 20:26:31,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:31,600 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:31,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:31,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1836086830, now seen corresponding path program 1 times [2024-10-11 20:26:31,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:31,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414141150] [2024-10-11 20:26:31,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:31,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:31,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:31,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:31,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:31,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:31,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:31,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 20:26:31,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:31,795 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414141150] [2024-10-11 20:26:31,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414141150] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:31,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1993137516] [2024-10-11 20:26:31,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:31,796 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:31,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:31,798 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:31,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 20:26:31,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:31,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-11 20:26:31,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:32,019 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-11 20:26:32,019 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:26:32,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1993137516] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:32,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:26:32,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-10-11 20:26:32,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444564432] [2024-10-11 20:26:32,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:32,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 20:26:32,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:32,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 20:26:32,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:26:32,021 INFO L87 Difference]: Start difference. First operand 60 states and 70 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-11 20:26:32,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:32,056 INFO L93 Difference]: Finished difference Result 60 states and 70 transitions. [2024-10-11 20:26:32,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 20:26:32,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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 20 [2024-10-11 20:26:32,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:32,058 INFO L225 Difference]: With dead ends: 60 [2024-10-11 20:26:32,059 INFO L226 Difference]: Without dead ends: 56 [2024-10-11 20:26:32,060 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:26:32,060 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 40 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:32,061 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 55 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:26:32,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-10-11 20:26:32,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-10-11 20:26:32,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 41 states have (on average 1.4146341463414633) internal successors, (58), 50 states have internal predecessors, (58), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 20:26:32,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2024-10-11 20:26:32,073 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 20 [2024-10-11 20:26:32,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:32,074 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2024-10-11 20:26:32,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 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) [2024-10-11 20:26:32,074 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2024-10-11 20:26:32,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-10-11 20:26:32,075 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:32,075 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:32,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 20:26:32,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:32,281 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:32,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:32,281 INFO L85 PathProgramCache]: Analyzing trace with hash 865764124, now seen corresponding path program 1 times [2024-10-11 20:26:32,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:32,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539829756] [2024-10-11 20:26:32,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:32,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:32,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:32,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:32,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:32,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:32,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:32,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 20:26:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:32,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:32,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539829756] [2024-10-11 20:26:32,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539829756] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:32,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:26:32,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:26:32,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061631132] [2024-10-11 20:26:32,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:32,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:26:32,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:32,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:26:32,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:26:32,405 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:26:32,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:32,484 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2024-10-11 20:26:32,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:26:32,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 25 [2024-10-11 20:26:32,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:32,486 INFO L225 Difference]: With dead ends: 56 [2024-10-11 20:26:32,486 INFO L226 Difference]: Without dead ends: 55 [2024-10-11 20:26:32,486 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:26:32,487 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 3 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:32,487 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 158 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:32,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-10-11 20:26:32,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-10-11 20:26:32,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 41 states have (on average 1.3902439024390243) internal successors, (57), 49 states have internal predecessors, (57), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-11 20:26:32,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 65 transitions. [2024-10-11 20:26:32,500 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 65 transitions. Word has length 25 [2024-10-11 20:26:32,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:32,500 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 65 transitions. [2024-10-11 20:26:32,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:26:32,500 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 65 transitions. [2024-10-11 20:26:32,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 20:26:32,501 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:32,501 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:32,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 20:26:32,502 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:32,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:32,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1068884124, now seen corresponding path program 1 times [2024-10-11 20:26:32,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:32,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378870439] [2024-10-11 20:26:32,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:32,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:32,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:32,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:32,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:32,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:32,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-11 20:26:32,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:32,646 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 20:26:32,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:32,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378870439] [2024-10-11 20:26:32,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378870439] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:32,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1905815048] [2024-10-11 20:26:32,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:32,647 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:32,647 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:32,649 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:32,650 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 20:26:32,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:32,823 INFO L255 TraceCheckSpWp]: Trace formula consists of 312 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:26:32,825 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:32,856 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-10-11 20:26:32,856 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:26:32,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1905815048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:32,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:26:32,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2024-10-11 20:26:32,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623120161] [2024-10-11 20:26:32,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:32,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:26:32,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:32,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:26:32,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:26:32,861 INFO L87 Difference]: Start difference. First operand 55 states and 65 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:26:32,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:32,903 INFO L93 Difference]: Finished difference Result 93 states and 108 transitions. [2024-10-11 20:26:32,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:26:32,905 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 26 [2024-10-11 20:26:32,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:32,906 INFO L225 Difference]: With dead ends: 93 [2024-10-11 20:26:32,906 INFO L226 Difference]: Without dead ends: 48 [2024-10-11 20:26:32,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:26:32,907 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:32,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 133 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:26:32,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-10-11 20:26:32,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-10-11 20:26:32,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 36 states have (on average 1.3611111111111112) internal successors, (49), 43 states have internal predecessors, (49), 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) [2024-10-11 20:26:32,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2024-10-11 20:26:32,917 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 26 [2024-10-11 20:26:32,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:32,917 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2024-10-11 20:26:32,918 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:26:32,918 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2024-10-11 20:26:32,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-10-11 20:26:32,918 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:32,918 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:32,937 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 20:26:33,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:33,119 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:33,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:33,120 INFO L85 PathProgramCache]: Analyzing trace with hash -27456178, now seen corresponding path program 1 times [2024-10-11 20:26:33,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:33,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1649811863] [2024-10-11 20:26:33,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:33,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:33,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:33,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:33,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:33,237 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:33,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:33,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1649811863] [2024-10-11 20:26:33,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1649811863] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:33,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:26:33,238 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 20:26:33,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735288410] [2024-10-11 20:26:33,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:33,238 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:26:33,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:33,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:26:33,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:26:33,239 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:33,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:33,305 INFO L93 Difference]: Finished difference Result 48 states and 55 transitions. [2024-10-11 20:26:33,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:26:33,305 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 27 [2024-10-11 20:26:33,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:33,307 INFO L225 Difference]: With dead ends: 48 [2024-10-11 20:26:33,307 INFO L226 Difference]: Without dead ends: 47 [2024-10-11 20:26:33,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:26:33,309 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:33,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 117 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:33,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2024-10-11 20:26:33,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2024-10-11 20:26:33,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 36 states have (on average 1.3333333333333333) internal successors, (48), 42 states have internal predecessors, (48), 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) [2024-10-11 20:26:33,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 54 transitions. [2024-10-11 20:26:33,313 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 54 transitions. Word has length 27 [2024-10-11 20:26:33,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:33,313 INFO L471 AbstractCegarLoop]: Abstraction has 47 states and 54 transitions. [2024-10-11 20:26:33,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:33,314 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 54 transitions. [2024-10-11 20:26:33,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-11 20:26:33,314 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:33,314 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:33,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 20:26:33,315 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:33,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:33,315 INFO L85 PathProgramCache]: Analyzing trace with hash -851141437, now seen corresponding path program 1 times [2024-10-11 20:26:33,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:33,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028893158] [2024-10-11 20:26:33,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:33,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:33,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:33,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:33,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:33,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:33,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:33,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:33,582 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 20:26:33,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:33,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028893158] [2024-10-11 20:26:33,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028893158] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:33,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875491803] [2024-10-11 20:26:33,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:33,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:33,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:33,585 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:33,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 20:26:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:33,794 INFO L255 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-11 20:26:33,797 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:33,986 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:33,987 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:26:33,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875491803] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:33,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:26:33,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-10-11 20:26:33,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310665950] [2024-10-11 20:26:33,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:33,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:26:33,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:33,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:26:33,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:26:33,988 INFO L87 Difference]: Start difference. First operand 47 states and 54 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:26:34,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:34,018 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2024-10-11 20:26:34,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:26:34,018 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 28 [2024-10-11 20:26:34,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:34,019 INFO L225 Difference]: With dead ends: 47 [2024-10-11 20:26:34,019 INFO L226 Difference]: Without dead ends: 46 [2024-10-11 20:26:34,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:26:34,020 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 0 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:34,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:26:34,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2024-10-11 20:26:34,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2024-10-11 20:26:34,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 36 states have (on average 1.3055555555555556) internal successors, (47), 41 states have internal predecessors, (47), 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) [2024-10-11 20:26:34,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2024-10-11 20:26:34,024 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 28 [2024-10-11 20:26:34,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:34,024 INFO L471 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2024-10-11 20:26:34,024 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:26:34,024 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2024-10-11 20:26:34,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-11 20:26:34,025 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:34,025 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:34,043 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 20:26:34,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-11 20:26:34,230 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:34,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:34,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1083103678, now seen corresponding path program 1 times [2024-10-11 20:26:34,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:34,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388601628] [2024-10-11 20:26:34,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:34,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:34,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:34,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:34,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,347 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:34,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:34,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1388601628] [2024-10-11 20:26:34,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1388601628] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:34,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:26:34,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:26:34,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592750401] [2024-10-11 20:26:34,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:34,348 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 20:26:34,348 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:34,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 20:26:34,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:26:34,349 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:34,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:34,411 INFO L93 Difference]: Finished difference Result 69 states and 79 transitions. [2024-10-11 20:26:34,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 20:26:34,411 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 31 [2024-10-11 20:26:34,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:34,412 INFO L225 Difference]: With dead ends: 69 [2024-10-11 20:26:34,412 INFO L226 Difference]: Without dead ends: 48 [2024-10-11 20:26:34,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 20:26:34,413 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:34,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 118 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:34,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-10-11 20:26:34,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-10-11 20:26:34,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 38 states have (on average 1.3157894736842106) internal successors, (50), 43 states have internal predecessors, (50), 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) [2024-10-11 20:26:34,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2024-10-11 20:26:34,421 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 31 [2024-10-11 20:26:34,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:34,421 INFO L471 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2024-10-11 20:26:34,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2024-10-11 20:26:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-11 20:26:34,422 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:34,422 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:34,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 20:26:34,422 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:34,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:34,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1159740158, now seen corresponding path program 1 times [2024-10-11 20:26:34,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:34,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818202883] [2024-10-11 20:26:34,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:34,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,557 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:34,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:34,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818202883] [2024-10-11 20:26:34,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818202883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:34,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:26:34,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 20:26:34,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295162898] [2024-10-11 20:26:34,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:34,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 20:26:34,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:34,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 20:26:34,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:26:34,559 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:34,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:34,629 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2024-10-11 20:26:34,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 20:26:34,629 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 33 [2024-10-11 20:26:34,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:34,630 INFO L225 Difference]: With dead ends: 54 [2024-10-11 20:26:34,630 INFO L226 Difference]: Without dead ends: 52 [2024-10-11 20:26:34,630 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-11 20:26:34,631 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 1 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:34,631 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 158 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:34,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-11 20:26:34,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2024-10-11 20:26:34,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 42 states have (on average 1.2857142857142858) internal successors, (54), 47 states have internal predecessors, (54), 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) [2024-10-11 20:26:34,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2024-10-11 20:26:34,636 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 33 [2024-10-11 20:26:34,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:34,636 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2024-10-11 20:26:34,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:34,636 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2024-10-11 20:26:34,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-11 20:26:34,637 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:34,637 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:34,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 20:26:34,637 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:34,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:34,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1922778876, now seen corresponding path program 1 times [2024-10-11 20:26:34,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:34,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327065702] [2024-10-11 20:26:34,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:34,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:34,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,833 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:34,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:34,843 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 20:26:34,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:34,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327065702] [2024-10-11 20:26:34,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327065702] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:34,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755389744] [2024-10-11 20:26:34,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:34,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:34,844 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:34,845 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:34,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 20:26:35,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:35,082 INFO L255 TraceCheckSpWp]: Trace formula consists of 416 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:26:35,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:35,141 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:35,142 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:26:35,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755389744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:35,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:26:35,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 10 [2024-10-11 20:26:35,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000812208] [2024-10-11 20:26:35,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:35,143 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 20:26:35,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:35,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 20:26:35,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:26:35,143 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:35,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:35,208 INFO L93 Difference]: Finished difference Result 54 states and 62 transitions. [2024-10-11 20:26:35,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 20:26:35,208 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 38 [2024-10-11 20:26:35,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:35,209 INFO L225 Difference]: With dead ends: 54 [2024-10-11 20:26:35,209 INFO L226 Difference]: Without dead ends: 52 [2024-10-11 20:26:35,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-11 20:26:35,210 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 4 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:35,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 178 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:35,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-10-11 20:26:35,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 50. [2024-10-11 20:26:35,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 42 states have (on average 1.2380952380952381) internal successors, (52), 45 states have internal predecessors, (52), 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) [2024-10-11 20:26:35,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 58 transitions. [2024-10-11 20:26:35,218 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 58 transitions. Word has length 38 [2024-10-11 20:26:35,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:35,218 INFO L471 AbstractCegarLoop]: Abstraction has 50 states and 58 transitions. [2024-10-11 20:26:35,221 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.6) internal successors, (28), 6 states have internal predecessors, (28), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:35,221 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 58 transitions. [2024-10-11 20:26:35,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-11 20:26:35,222 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:35,222 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:35,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 20:26:35,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 20:26:35,423 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:35,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:35,424 INFO L85 PathProgramCache]: Analyzing trace with hash -523396857, now seen corresponding path program 1 times [2024-10-11 20:26:35,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:35,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451379460] [2024-10-11 20:26:35,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:35,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:35,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:35,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:35,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:35,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:35,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:35,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:35,604 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:35,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:35,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451379460] [2024-10-11 20:26:35,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451379460] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:35,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 20:26:35,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-11 20:26:35,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416800500] [2024-10-11 20:26:35,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:35,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-11 20:26:35,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:35,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-11 20:26:35,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-11 20:26:35,606 INFO L87 Difference]: Start difference. First operand 50 states and 58 transitions. Second operand has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:35,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:35,714 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2024-10-11 20:26:35,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 20:26:35,714 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-10-11 20:26:35,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:35,715 INFO L225 Difference]: With dead ends: 58 [2024-10-11 20:26:35,715 INFO L226 Difference]: Without dead ends: 57 [2024-10-11 20:26:35,715 INFO L431 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 [2024-10-11 20:26:35,716 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 2 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 209 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:35,716 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 209 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:35,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-10-11 20:26:35,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2024-10-11 20:26:35,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 50 states have internal predecessors, (58), 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) [2024-10-11 20:26:35,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 64 transitions. [2024-10-11 20:26:35,720 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 64 transitions. Word has length 39 [2024-10-11 20:26:35,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:35,720 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 64 transitions. [2024-10-11 20:26:35,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.833333333333333) internal successors, (29), 6 states have internal predecessors, (29), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 64 transitions. [2024-10-11 20:26:35,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-11 20:26:35,721 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:35,721 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-10-11 20:26:35,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-11 20:26:35,722 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:35,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:35,722 INFO L85 PathProgramCache]: Analyzing trace with hash -522165495, now seen corresponding path program 1 times [2024-10-11 20:26:35,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:35,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311632123] [2024-10-11 20:26:35,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:35,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:35,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:35,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:35,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:35,850 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:35,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:35,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:35,866 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:35,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:35,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311632123] [2024-10-11 20:26:35,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311632123] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:35,866 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [30870708] [2024-10-11 20:26:35,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:35,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:35,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:35,868 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:35,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 20:26:36,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:36,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 20:26:36,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:36,169 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:36,169 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:26:36,238 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:36,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [30870708] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:26:36,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:26:36,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2024-10-11 20:26:36,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452812033] [2024-10-11 20:26:36,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:26:36,239 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-11 20:26:36,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:36,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-11 20:26:36,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:26:36,240 INFO L87 Difference]: Start difference. First operand 55 states and 64 transitions. Second operand has 13 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:36,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:36,353 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2024-10-11 20:26:36,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 20:26:36,353 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 39 [2024-10-11 20:26:36,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:36,354 INFO L225 Difference]: With dead ends: 74 [2024-10-11 20:26:36,354 INFO L226 Difference]: Without dead ends: 73 [2024-10-11 20:26:36,354 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-10-11 20:26:36,355 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 9 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:36,355 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 258 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:36,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-10-11 20:26:36,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 69. [2024-10-11 20:26:36,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 61 states have (on average 1.2131147540983607) internal successors, (74), 64 states have internal predecessors, (74), 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) [2024-10-11 20:26:36,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 80 transitions. [2024-10-11 20:26:36,360 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 80 transitions. Word has length 39 [2024-10-11 20:26:36,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:36,360 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 80 transitions. [2024-10-11 20:26:36,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:36,360 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 80 transitions. [2024-10-11 20:26:36,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-10-11 20:26:36,361 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:36,361 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:36,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 20:26:36,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 20:26:36,562 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:36,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:36,562 INFO L85 PathProgramCache]: Analyzing trace with hash -1784348190, now seen corresponding path program 1 times [2024-10-11 20:26:36,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:36,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518621642] [2024-10-11 20:26:36,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:36,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:36,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:36,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:36,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:36,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:36,808 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 20:26:36,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:36,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518621642] [2024-10-11 20:26:36,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518621642] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:36,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354458694] [2024-10-11 20:26:36,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:36,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:36,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:36,811 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:36,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 20:26:37,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:37,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 20:26:37,072 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:37,185 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:37,185 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:26:37,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [354458694] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:37,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:26:37,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2024-10-11 20:26:37,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533554840] [2024-10-11 20:26:37,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:37,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 20:26:37,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:37,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 20:26:37,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:26:37,187 INFO L87 Difference]: Start difference. First operand 69 states and 80 transitions. Second operand has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:37,257 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:37,257 INFO L93 Difference]: Finished difference Result 69 states and 80 transitions. [2024-10-11 20:26:37,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 20:26:37,258 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 42 [2024-10-11 20:26:37,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:37,258 INFO L225 Difference]: With dead ends: 69 [2024-10-11 20:26:37,258 INFO L226 Difference]: Without dead ends: 68 [2024-10-11 20:26:37,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 41 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:26:37,259 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 5 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 97 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:37,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 195 Invalid, 97 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:37,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2024-10-11 20:26:37,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2024-10-11 20:26:37,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 61 states have (on average 1.1967213114754098) internal successors, (73), 63 states have internal predecessors, (73), 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) [2024-10-11 20:26:37,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 79 transitions. [2024-10-11 20:26:37,264 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 79 transitions. Word has length 42 [2024-10-11 20:26:37,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:37,264 INFO L471 AbstractCegarLoop]: Abstraction has 68 states and 79 transitions. [2024-10-11 20:26:37,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.571428571428571) internal successors, (32), 8 states have internal predecessors, (32), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:37,265 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 79 transitions. [2024-10-11 20:26:37,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-10-11 20:26:37,265 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:37,266 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:37,285 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 20:26:37,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:37,467 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:37,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:37,467 INFO L85 PathProgramCache]: Analyzing trace with hash 519781102, now seen corresponding path program 1 times [2024-10-11 20:26:37,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:37,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722293294] [2024-10-11 20:26:37,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:37,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:37,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:37,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:37,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:37,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:37,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:37,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:37,680 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-10-11 20:26:37,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:37,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722293294] [2024-10-11 20:26:37,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722293294] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:37,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2019471251] [2024-10-11 20:26:37,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:37,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:37,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:37,683 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:37,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 20:26:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:37,944 INFO L255 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 20:26:37,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:38,011 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:38,011 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 20:26:38,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2019471251] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 20:26:38,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 20:26:38,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [6] total 12 [2024-10-11 20:26:38,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026881669] [2024-10-11 20:26:38,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:38,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 20:26:38,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:38,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 20:26:38,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:26:38,013 INFO L87 Difference]: Start difference. First operand 68 states and 79 transitions. Second operand has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:38,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:38,087 INFO L93 Difference]: Finished difference Result 73 states and 84 transitions. [2024-10-11 20:26:38,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 20:26:38,087 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 43 [2024-10-11 20:26:38,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:38,088 INFO L225 Difference]: With dead ends: 73 [2024-10-11 20:26:38,088 INFO L226 Difference]: Without dead ends: 72 [2024-10-11 20:26:38,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-10-11 20:26:38,089 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 4 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 88 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 88 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:38,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 212 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 88 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:38,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-11 20:26:38,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-10-11 20:26:38,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 65 states have (on average 1.1846153846153846) internal successors, (77), 67 states have internal predecessors, (77), 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) [2024-10-11 20:26:38,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2024-10-11 20:26:38,097 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 43 [2024-10-11 20:26:38,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:38,098 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2024-10-11 20:26:38,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 4.714285714285714) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:38,098 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2024-10-11 20:26:38,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-11 20:26:38,100 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:38,100 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-10-11 20:26:38,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 20:26:38,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 20:26:38,301 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:38,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:38,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1621117739, now seen corresponding path program 1 times [2024-10-11 20:26:38,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:38,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172783343] [2024-10-11 20:26:38,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:38,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:38,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:38,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:38,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:38,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:38,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:38,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:38,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:38,507 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-10-11 20:26:38,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:38,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172783343] [2024-10-11 20:26:38,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172783343] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:38,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712328679] [2024-10-11 20:26:38,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:38,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:38,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:38,509 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:38,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-11 20:26:38,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:38,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 20:26:38,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:38,836 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:38,836 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:26:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-11 20:26:38,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712328679] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:26:38,933 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:26:38,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2024-10-11 20:26:38,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900461431] [2024-10-11 20:26:38,933 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:26:38,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-11 20:26:38,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:38,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-11 20:26:38,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-10-11 20:26:38,935 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 20:26:39,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:39,204 INFO L93 Difference]: Finished difference Result 134 states and 153 transitions. [2024-10-11 20:26:39,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-11 20:26:39,204 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 44 [2024-10-11 20:26:39,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:39,205 INFO L225 Difference]: With dead ends: 134 [2024-10-11 20:26:39,205 INFO L226 Difference]: Without dead ends: 86 [2024-10-11 20:26:39,206 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 80 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=152, Invalid=778, Unknown=0, NotChecked=0, Total=930 [2024-10-11 20:26:39,206 INFO L432 NwaCegarLoop]: 31 mSDtfsCounter, 81 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:39,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 318 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:26:39,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-10-11 20:26:39,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 76. [2024-10-11 20:26:39,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 69 states have (on average 1.173913043478261) internal successors, (81), 71 states have internal predecessors, (81), 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) [2024-10-11 20:26:39,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 87 transitions. [2024-10-11 20:26:39,211 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 87 transitions. Word has length 44 [2024-10-11 20:26:39,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:39,211 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 87 transitions. [2024-10-11 20:26:39,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.333333333333333) internal successors, (78), 17 states have internal predecessors, (78), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-10-11 20:26:39,211 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 87 transitions. [2024-10-11 20:26:39,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-11 20:26:39,212 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:39,212 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-10-11 20:26:39,232 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-11 20:26:39,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-11 20:26:39,413 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:39,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:39,414 INFO L85 PathProgramCache]: Analyzing trace with hash -550450252, now seen corresponding path program 1 times [2024-10-11 20:26:39,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:39,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934080512] [2024-10-11 20:26:39,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:39,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:39,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:39,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:39,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:39,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:39,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:39,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:39,651 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:39,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:39,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934080512] [2024-10-11 20:26:39,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [934080512] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:39,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [262080202] [2024-10-11 20:26:39,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:39,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:39,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:39,654 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:39,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-11 20:26:39,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:39,918 INFO L255 TraceCheckSpWp]: Trace formula consists of 462 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-11 20:26:39,920 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:39,970 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:39,970 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:26:40,110 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:40,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [262080202] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:26:40,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:26:40,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 20 [2024-10-11 20:26:40,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173256025] [2024-10-11 20:26:40,111 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:26:40,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-11 20:26:40,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:40,112 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-11 20:26:40,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2024-10-11 20:26:40,112 INFO L87 Difference]: Start difference. First operand 76 states and 87 transitions. Second operand has 21 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:40,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:40,246 INFO L93 Difference]: Finished difference Result 98 states and 111 transitions. [2024-10-11 20:26:40,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-11 20:26:40,247 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 49 [2024-10-11 20:26:40,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:40,247 INFO L225 Difference]: With dead ends: 98 [2024-10-11 20:26:40,247 INFO L226 Difference]: Without dead ends: 97 [2024-10-11 20:26:40,248 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2024-10-11 20:26:40,248 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 12 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:40,249 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 281 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:40,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2024-10-11 20:26:40,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 95. [2024-10-11 20:26:40,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 88 states have (on average 1.1363636363636365) internal successors, (100), 90 states have internal predecessors, (100), 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) [2024-10-11 20:26:40,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 106 transitions. [2024-10-11 20:26:40,254 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 106 transitions. Word has length 49 [2024-10-11 20:26:40,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:40,254 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 106 transitions. [2024-10-11 20:26:40,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 3.2) internal successors, (64), 20 states have internal predecessors, (64), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:40,254 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 106 transitions. [2024-10-11 20:26:40,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-10-11 20:26:40,255 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:40,255 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-10-11 20:26:40,271 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-11 20:26:40,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-10-11 20:26:40,456 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:40,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:40,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1917014143, now seen corresponding path program 1 times [2024-10-11 20:26:40,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:40,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972206404] [2024-10-11 20:26:40,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:40,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:40,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:40,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:40,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:40,721 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:40,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:40,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:40,736 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:40,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:40,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972206404] [2024-10-11 20:26:40,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972206404] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:40,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160532206] [2024-10-11 20:26:40,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:40,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:40,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:40,738 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:40,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-11 20:26:41,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:41,039 INFO L255 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 20:26:41,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:41,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:26:41,235 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:41,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160532206] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:26:41,236 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:26:41,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2024-10-11 20:26:41,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460696389] [2024-10-11 20:26:41,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:26:41,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-10-11 20:26:41,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:41,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-10-11 20:26:41,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2024-10-11 20:26:41,237 INFO L87 Difference]: Start difference. First operand 95 states and 106 transitions. Second operand has 25 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 24 states have internal predecessors, (74), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:41,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:41,434 INFO L93 Difference]: Finished difference Result 140 states and 155 transitions. [2024-10-11 20:26:41,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-10-11 20:26:41,435 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 24 states have internal predecessors, (74), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 54 [2024-10-11 20:26:41,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:41,436 INFO L225 Difference]: With dead ends: 140 [2024-10-11 20:26:41,436 INFO L226 Difference]: Without dead ends: 137 [2024-10-11 20:26:41,437 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=125, Invalid=475, Unknown=0, NotChecked=0, Total=600 [2024-10-11 20:26:41,437 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 24 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:41,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 380 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:26:41,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2024-10-11 20:26:41,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 105. [2024-10-11 20:26:41,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 100 states have internal predecessors, (112), 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) [2024-10-11 20:26:41,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 118 transitions. [2024-10-11 20:26:41,447 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 118 transitions. Word has length 54 [2024-10-11 20:26:41,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:41,447 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 118 transitions. [2024-10-11 20:26:41,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 24 states have internal predecessors, (74), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:41,447 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 118 transitions. [2024-10-11 20:26:41,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-10-11 20:26:41,448 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:41,448 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:41,466 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-10-11 20:26:41,648 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:41,649 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:41,649 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:41,649 INFO L85 PathProgramCache]: Analyzing trace with hash 1948417919, now seen corresponding path program 1 times [2024-10-11 20:26:41,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:41,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038011106] [2024-10-11 20:26:41,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:41,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:41,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:41,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:41,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:41,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:41,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:41,989 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:41,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:41,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038011106] [2024-10-11 20:26:41,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038011106] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:41,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73751440] [2024-10-11 20:26:41,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:41,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:41,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:41,992 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:41,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-11 20:26:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:42,310 INFO L255 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 20:26:42,312 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:42,377 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:42,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:26:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:42,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73751440] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:26:42,588 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:26:42,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 13] total 28 [2024-10-11 20:26:42,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883235023] [2024-10-11 20:26:42,589 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:26:42,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-11 20:26:42,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:42,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-11 20:26:42,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=653, Unknown=0, NotChecked=0, Total=812 [2024-10-11 20:26:42,590 INFO L87 Difference]: Start difference. First operand 105 states and 118 transitions. Second operand has 29 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:42,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:42,766 INFO L93 Difference]: Finished difference Result 158 states and 174 transitions. [2024-10-11 20:26:42,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-10-11 20:26:42,766 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 59 [2024-10-11 20:26:42,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:42,767 INFO L225 Difference]: With dead ends: 158 [2024-10-11 20:26:42,767 INFO L226 Difference]: Without dead ends: 157 [2024-10-11 20:26:42,768 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=159, Invalid=653, Unknown=0, NotChecked=0, Total=812 [2024-10-11 20:26:42,768 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 16 mSDsluCounter, 417 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:42,768 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 452 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:26:42,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-10-11 20:26:42,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 115. [2024-10-11 20:26:42,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 108 states have (on average 1.1296296296296295) internal successors, (122), 110 states have internal predecessors, (122), 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) [2024-10-11 20:26:42,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 128 transitions. [2024-10-11 20:26:42,774 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 128 transitions. Word has length 59 [2024-10-11 20:26:42,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:42,774 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 128 transitions. [2024-10-11 20:26:42,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 3.0) internal successors, (84), 28 states have internal predecessors, (84), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:42,775 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 128 transitions. [2024-10-11 20:26:42,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-10-11 20:26:42,775 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:42,775 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:42,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-11 20:26:42,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:42,980 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:42,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:42,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1367117766, now seen corresponding path program 1 times [2024-10-11 20:26:42,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:42,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980474096] [2024-10-11 20:26:42,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:42,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:43,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:43,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:43,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:43,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:43,329 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:43,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:43,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980474096] [2024-10-11 20:26:43,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980474096] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:43,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126574549] [2024-10-11 20:26:43,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:43,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:43,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:43,331 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:43,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-11 20:26:43,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:43,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 20:26:43,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:43,670 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:43,670 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:26:43,905 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:43,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126574549] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:26:43,906 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:26:43,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2024-10-11 20:26:43,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833780504] [2024-10-11 20:26:43,906 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:26:43,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-10-11 20:26:43,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:43,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-10-11 20:26:43,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 20:26:43,908 INFO L87 Difference]: Start difference. First operand 115 states and 128 transitions. Second operand has 33 states, 32 states have (on average 3.0) internal successors, (96), 32 states have internal predecessors, (96), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:44,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:44,064 INFO L93 Difference]: Finished difference Result 175 states and 202 transitions. [2024-10-11 20:26:44,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-11 20:26:44,064 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 32 states have internal predecessors, (96), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 65 [2024-10-11 20:26:44,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:44,066 INFO L225 Difference]: With dead ends: 175 [2024-10-11 20:26:44,066 INFO L226 Difference]: Without dead ends: 174 [2024-10-11 20:26:44,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 118 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 307 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2024-10-11 20:26:44,067 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 63 mSDsluCounter, 420 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:44,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 459 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:44,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-10-11 20:26:44,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 154. [2024-10-11 20:26:44,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 147 states have (on average 1.1428571428571428) internal successors, (168), 149 states have internal predecessors, (168), 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) [2024-10-11 20:26:44,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 174 transitions. [2024-10-11 20:26:44,079 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 174 transitions. Word has length 65 [2024-10-11 20:26:44,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:44,080 INFO L471 AbstractCegarLoop]: Abstraction has 154 states and 174 transitions. [2024-10-11 20:26:44,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 3.0) internal successors, (96), 32 states have internal predecessors, (96), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:44,080 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 174 transitions. [2024-10-11 20:26:44,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-10-11 20:26:44,083 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:44,083 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-10-11 20:26:44,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-11 20:26:44,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,14 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:44,284 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:44,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:44,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1712518420, now seen corresponding path program 2 times [2024-10-11 20:26:44,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:44,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889914226] [2024-10-11 20:26:44,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:44,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:44,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:44,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:44,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:44,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:44,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:44,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:44,677 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:44,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:44,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889914226] [2024-10-11 20:26:44,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889914226] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:44,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146999406] [2024-10-11 20:26:44,678 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:26:44,678 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:44,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:44,680 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:44,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-11 20:26:45,052 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:26:45,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:26:45,055 INFO L255 TraceCheckSpWp]: Trace formula consists of 540 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 20:26:45,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:45,125 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:45,125 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:26:45,383 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:45,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146999406] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:26:45,383 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:26:45,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 36 [2024-10-11 20:26:45,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914509225] [2024-10-11 20:26:45,384 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:26:45,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-11 20:26:45,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:45,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-11 20:26:45,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 20:26:45,386 INFO L87 Difference]: Start difference. First operand 154 states and 174 transitions. Second operand has 37 states, 36 states have (on average 2.888888888888889) internal successors, (104), 36 states have internal predecessors, (104), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:45,563 INFO L93 Difference]: Finished difference Result 220 states and 244 transitions. [2024-10-11 20:26:45,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-11 20:26:45,564 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.888888888888889) internal successors, (104), 36 states have internal predecessors, (104), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 69 [2024-10-11 20:26:45,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:45,566 INFO L225 Difference]: With dead ends: 220 [2024-10-11 20:26:45,566 INFO L226 Difference]: Without dead ends: 219 [2024-10-11 20:26:45,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 414 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=1075, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 20:26:45,567 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 20 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:45,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 302 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:26:45,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-10-11 20:26:45,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 160. [2024-10-11 20:26:45,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 153 states have (on average 1.1372549019607843) internal successors, (174), 155 states have internal predecessors, (174), 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) [2024-10-11 20:26:45,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 180 transitions. [2024-10-11 20:26:45,575 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 180 transitions. Word has length 69 [2024-10-11 20:26:45,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:45,576 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 180 transitions. [2024-10-11 20:26:45,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.888888888888889) internal successors, (104), 36 states have internal predecessors, (104), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:45,576 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 180 transitions. [2024-10-11 20:26:45,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-10-11 20:26:45,577 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:45,577 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:45,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-11 20:26:45,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-10-11 20:26:45,777 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:45,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:45,778 INFO L85 PathProgramCache]: Analyzing trace with hash 595252378, now seen corresponding path program 1 times [2024-10-11 20:26:45,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:45,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265145503] [2024-10-11 20:26:45,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:45,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:45,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:46,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:46,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:46,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:46,200 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:46,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:46,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265145503] [2024-10-11 20:26:46,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265145503] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:46,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1989013633] [2024-10-11 20:26:46,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:46,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:46,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:46,204 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:46,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-11 20:26:46,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:46,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 549 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 20:26:46,520 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:46,575 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:46,575 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:26:46,851 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:46,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1989013633] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:26:46,851 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:26:46,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 36 [2024-10-11 20:26:46,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150741082] [2024-10-11 20:26:46,852 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:26:46,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-10-11 20:26:46,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:46,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-10-11 20:26:46,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 20:26:46,854 INFO L87 Difference]: Start difference. First operand 160 states and 180 transitions. Second operand has 37 states, 36 states have (on average 2.9444444444444446) internal successors, (106), 36 states have internal predecessors, (106), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:47,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:47,022 INFO L93 Difference]: Finished difference Result 196 states and 218 transitions. [2024-10-11 20:26:47,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-11 20:26:47,023 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 36 states have (on average 2.9444444444444446) internal successors, (106), 36 states have internal predecessors, (106), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 70 [2024-10-11 20:26:47,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:47,024 INFO L225 Difference]: With dead ends: 196 [2024-10-11 20:26:47,024 INFO L226 Difference]: Without dead ends: 195 [2024-10-11 20:26:47,025 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=313, Invalid=1019, Unknown=0, NotChecked=0, Total=1332 [2024-10-11 20:26:47,025 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 46 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:47,025 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 302 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-11 20:26:47,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-10-11 20:26:47,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 165. [2024-10-11 20:26:47,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 158 states have (on average 1.139240506329114) internal successors, (180), 160 states have internal predecessors, (180), 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) [2024-10-11 20:26:47,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 186 transitions. [2024-10-11 20:26:47,036 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 186 transitions. Word has length 70 [2024-10-11 20:26:47,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:47,037 INFO L471 AbstractCegarLoop]: Abstraction has 165 states and 186 transitions. [2024-10-11 20:26:47,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 36 states have (on average 2.9444444444444446) internal successors, (106), 36 states have internal predecessors, (106), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:47,037 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 186 transitions. [2024-10-11 20:26:47,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-10-11 20:26:47,038 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:47,038 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 6, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:47,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-11 20:26:47,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:47,239 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:47,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:47,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1968540415, now seen corresponding path program 2 times [2024-10-11 20:26:47,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:47,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576069936] [2024-10-11 20:26:47,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:47,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:47,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:47,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:47,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:47,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:47,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:47,680 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:47,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:47,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576069936] [2024-10-11 20:26:47,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576069936] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:47,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922294624] [2024-10-11 20:26:47,681 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:26:47,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:47,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:47,683 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:47,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-11 20:26:48,084 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:26:48,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:26:48,087 INFO L255 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-11 20:26:48,089 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:48,147 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:48,147 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:26:48,496 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 0 proven. 105 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:48,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922294624] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:26:48,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:26:48,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 40 [2024-10-11 20:26:48,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562300763] [2024-10-11 20:26:48,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:26:48,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-10-11 20:26:48,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:48,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-10-11 20:26:48,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=1283, Unknown=0, NotChecked=0, Total=1640 [2024-10-11 20:26:48,498 INFO L87 Difference]: Start difference. First operand 165 states and 186 transitions. Second operand has 41 states, 40 states have (on average 2.85) internal successors, (114), 40 states have internal predecessors, (114), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:48,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:48,702 INFO L93 Difference]: Finished difference Result 212 states and 234 transitions. [2024-10-11 20:26:48,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-11 20:26:48,702 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 40 states have (on average 2.85) internal successors, (114), 40 states have internal predecessors, (114), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 74 [2024-10-11 20:26:48,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:48,704 INFO L225 Difference]: With dead ends: 212 [2024-10-11 20:26:48,704 INFO L226 Difference]: Without dead ends: 211 [2024-10-11 20:26:48,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 484 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=357, Invalid=1283, Unknown=0, NotChecked=0, Total=1640 [2024-10-11 20:26:48,705 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 51 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:48,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 431 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 262 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:26:48,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-10-11 20:26:48,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 169. [2024-10-11 20:26:48,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 162 states have (on average 1.1358024691358024) internal successors, (184), 164 states have internal predecessors, (184), 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) [2024-10-11 20:26:48,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 190 transitions. [2024-10-11 20:26:48,716 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 190 transitions. Word has length 74 [2024-10-11 20:26:48,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:48,717 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 190 transitions. [2024-10-11 20:26:48,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 2.85) internal successors, (114), 40 states have internal predecessors, (114), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:48,717 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 190 transitions. [2024-10-11 20:26:48,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-10-11 20:26:48,718 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:48,718 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:48,736 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-11 20:26:48,918 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-10-11 20:26:48,919 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:48,919 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:48,919 INFO L85 PathProgramCache]: Analyzing trace with hash -1670965473, now seen corresponding path program 3 times [2024-10-11 20:26:48,919 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:48,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063509524] [2024-10-11 20:26:48,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:48,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:48,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:49,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:49,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:49,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:49,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:49,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:49,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:49,401 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:49,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:49,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063509524] [2024-10-11 20:26:49,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063509524] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:49,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1017959083] [2024-10-11 20:26:49,402 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:26:49,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:49,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:49,403 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:49,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-11 20:26:52,341 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-11 20:26:52,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:26:52,347 INFO L255 TraceCheckSpWp]: Trace formula consists of 560 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-11 20:26:52,349 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:52,462 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-11 20:26:52,462 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:26:52,687 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-10-11 20:26:52,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1017959083] provided 1 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:52,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-10-11 20:26:52,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [22, 8] total 34 [2024-10-11 20:26:52,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665291879] [2024-10-11 20:26:52,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 20:26:52,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 20:26:52,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:52,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 20:26:52,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=960, Unknown=0, NotChecked=0, Total=1122 [2024-10-11 20:26:52,689 INFO L87 Difference]: Start difference. First operand 169 states and 190 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:26:52,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:52,835 INFO L93 Difference]: Finished difference Result 218 states and 239 transitions. [2024-10-11 20:26:52,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 20:26:52,835 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 79 [2024-10-11 20:26:52,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:52,836 INFO L225 Difference]: With dead ends: 218 [2024-10-11 20:26:52,836 INFO L226 Difference]: Without dead ends: 81 [2024-10-11 20:26:52,837 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 371 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=222, Invalid=1260, Unknown=0, NotChecked=0, Total=1482 [2024-10-11 20:26:52,838 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 46 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:52,838 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 165 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 20:26:52,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-11 20:26:52,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-10-11 20:26:52,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 76 states have (on average 1.0657894736842106) internal successors, (81), 76 states have internal predecessors, (81), 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) [2024-10-11 20:26:52,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2024-10-11 20:26:52,845 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 79 [2024-10-11 20:26:52,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:52,845 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2024-10-11 20:26:52,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 8 states have internal predecessors, (42), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-11 20:26:52,845 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2024-10-11 20:26:52,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 20:26:52,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:52,846 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:52,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-10-11 20:26:53,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,18 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:53,047 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:53,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:53,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1008364479, now seen corresponding path program 2 times [2024-10-11 20:26:53,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:53,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548161792] [2024-10-11 20:26:53,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:53,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:53,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:53,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:53,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:53,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:53,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:53,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:53,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:53,662 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:53,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:53,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548161792] [2024-10-11 20:26:53,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548161792] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:53,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [282977410] [2024-10-11 20:26:53,663 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 20:26:53,664 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:53,664 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:53,665 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:53,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-11 20:26:54,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 20:26:54,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:26:54,106 INFO L255 TraceCheckSpWp]: Trace formula consists of 595 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-10-11 20:26:54,108 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:26:54,220 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:54,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 20:26:54,685 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 0 proven. 172 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:54,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [282977410] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 20:26:54,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 20:26:54,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 23] total 48 [2024-10-11 20:26:54,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834595829] [2024-10-11 20:26:54,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 20:26:54,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2024-10-11 20:26:54,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 20:26:54,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2024-10-11 20:26:54,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=505, Invalid=1847, Unknown=0, NotChecked=0, Total=2352 [2024-10-11 20:26:54,688 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand has 49 states, 48 states have (on average 2.7916666666666665) internal successors, (134), 48 states have internal predecessors, (134), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:54,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 20:26:54,884 INFO L93 Difference]: Finished difference Result 132 states and 147 transitions. [2024-10-11 20:26:54,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-10-11 20:26:54,884 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 48 states have (on average 2.7916666666666665) internal successors, (134), 48 states have internal predecessors, (134), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 84 [2024-10-11 20:26:54,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 20:26:54,885 INFO L225 Difference]: With dead ends: 132 [2024-10-11 20:26:54,885 INFO L226 Difference]: Without dead ends: 131 [2024-10-11 20:26:54,886 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 679 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=505, Invalid=1847, Unknown=0, NotChecked=0, Total=2352 [2024-10-11 20:26:54,887 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 2 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 553 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-11 20:26:54,887 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 553 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-11 20:26:54,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-10-11 20:26:54,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2024-10-11 20:26:54,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 126 states have (on average 1.0396825396825398) internal successors, (131), 126 states have internal predecessors, (131), 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) [2024-10-11 20:26:54,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 137 transitions. [2024-10-11 20:26:54,898 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 137 transitions. Word has length 84 [2024-10-11 20:26:54,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 20:26:54,898 INFO L471 AbstractCegarLoop]: Abstraction has 131 states and 137 transitions. [2024-10-11 20:26:54,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 48 states have (on average 2.7916666666666665) internal successors, (134), 48 states have internal predecessors, (134), 1 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-10-11 20:26:54,899 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 137 transitions. [2024-10-11 20:26:54,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-10-11 20:26:54,900 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 20:26:54,900 INFO L215 NwaCegarLoop]: trace histogram [19, 19, 19, 18, 18, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 20:26:54,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-11 20:26:55,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-11 20:26:55,105 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2024-10-11 20:26:55,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 20:26:55,105 INFO L85 PathProgramCache]: Analyzing trace with hash -461495391, now seen corresponding path program 3 times [2024-10-11 20:26:55,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 20:26:55,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124308615] [2024-10-11 20:26:55,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 20:26:55,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 20:26:55,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:56,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 20:26:56,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:56,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 20:26:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:56,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-10-11 20:26:56,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 20:26:56,335 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 0 proven. 837 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-10-11 20:26:56,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 20:26:56,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124308615] [2024-10-11 20:26:56,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124308615] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 20:26:56,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1970672958] [2024-10-11 20:26:56,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 20:26:56,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 20:26:56,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 20:26:56,337 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 20:26:56,340 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-11 20:27:00,130 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-11 20:27:00,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 20:27:00,141 INFO L255 TraceCheckSpWp]: Trace formula consists of 538 conjuncts, 149 conjuncts are in the unsatisfiable core [2024-10-11 20:27:00,147 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 20:27:00,189 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-10-11 20:27:00,461 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-10-11 20:27:00,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-10-11 20:27:00,537 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 [2024-10-11 20:27:00,545 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 [2024-10-11 20:27:00,635 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-11 20:27:00,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-11 20:27:00,887 INFO L349 Elim1Store]: treesize reduction 33, result has 25.0 percent of original size [2024-10-11 20:27:00,887 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 188 treesize of output 93 [2024-10-11 20:27:00,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 30 [2024-10-11 20:27:01,084 INFO L349 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2024-10-11 20:27:01,085 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 83 treesize of output 34 [2024-10-11 20:27:01,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 20:27:01,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 7 [2024-10-11 20:27:01,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 20:27:01,366 INFO L349 Elim1Store]: treesize reduction 29, result has 14.7 percent of original size [2024-10-11 20:27:01,367 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 91 treesize of output 62 [2024-10-11 20:27:01,401 INFO L349 Elim1Store]: treesize reduction 48, result has 47.3 percent of original size [2024-10-11 20:27:01,401 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 53 [2024-10-11 20:27:01,449 INFO L349 Elim1Store]: treesize reduction 8, result has 72.4 percent of original size [2024-10-11 20:27:01,450 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 30 [2024-10-11 20:27:01,924 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 184 treesize of output 63 [2024-10-11 20:27:01,957 INFO L349 Elim1Store]: treesize reduction 162, result has 19.0 percent of original size [2024-10-11 20:27:01,957 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 303 treesize of output 107 [2024-10-11 20:27:02,844 INFO L349 Elim1Store]: treesize reduction 32, result has 28.9 percent of original size [2024-10-11 20:27:02,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 150 treesize of output 68 [2024-10-11 20:27:02,855 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 13 [2024-10-11 20:27:02,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 20:27:02,999 INFO L134 CoverageAnalysis]: Checked inductivity of 848 backedges. 94 proven. 6 refuted. 0 times theorem prover too weak. 748 trivial. 0 not checked. [2024-10-11 20:27:03,000 INFO L311 TraceCheckSpWp]: Computing backward predicates...